TY  - JOUR
AU  - Marković, S
AU  - Dunjić, Branko
AU  - Zlatanić, Alisa
AU  - Đonlagić, Jasna
PY  - 2001
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/340
AB  - The curing reaction of typical commercial phenol-formaldehyde novolac resins with hexamethylentetraamine (HMTA) was followed by dynamic mechanical analysis. The evolution of the rheological parameters, such as storage modulus G ', loss modulus G ", and tan delta (G " /G '), as a function of time, for samples of the phenolic resins on cloth, was recorded. The curing reaction, leading to the formation of a crosslinked structure, is described by a third-order phenomenological equation. This equation takes into account a self-acceleration effect, as a consequence not only of the chemical reaction of crosslinking after the gel point but of phase segregation as well. This rheokinetic model of the curing of phenolic novolac resins permits the determination of the numerical values of the kinetic equation constants. The influence of the composition, structure, and physical treatment on the curing kinetics of the novolac resins is evaluated.
PB  - Wiley, Hoboken
T2  - Journal of Applied Polymer Science
T1  - Dynamic mechanical analysis study of the curing of phenol-formaldehyde novolac resins
EP  - 1913
IS  - 8
SP  - 1902
VL  - 81
DO  - 10.1002/app.1623
ER  - 

@article{
author = "Marković, S and Dunjić, Branko and Zlatanić, Alisa and Đonlagić, Jasna",
year = "2001",
abstract = "The curing reaction of typical commercial phenol-formaldehyde novolac resins with hexamethylentetraamine (HMTA) was followed by dynamic mechanical analysis. The evolution of the rheological parameters, such as storage modulus G ', loss modulus G ", and tan delta (G " /G '), as a function of time, for samples of the phenolic resins on cloth, was recorded. The curing reaction, leading to the formation of a crosslinked structure, is described by a third-order phenomenological equation. This equation takes into account a self-acceleration effect, as a consequence not only of the chemical reaction of crosslinking after the gel point but of phase segregation as well. This rheokinetic model of the curing of phenolic novolac resins permits the determination of the numerical values of the kinetic equation constants. The influence of the composition, structure, and physical treatment on the curing kinetics of the novolac resins is evaluated.",
publisher = "Wiley, Hoboken",
journal = "Journal of Applied Polymer Science",
title = "Dynamic mechanical analysis study of the curing of phenol-formaldehyde novolac resins",
pages = "1913-1902",
number = "8",
volume = "81",
doi = "10.1002/app.1623"
}

Marković, S., Dunjić, B., Zlatanić, A.,& Đonlagić, J.. (2001). Dynamic mechanical analysis study of the curing of phenol-formaldehyde novolac resins. in Journal of Applied Polymer Science
Wiley, Hoboken., 81(8), 1902-1913.
https://doi.org/10.1002/app.1623

Marković S, Dunjić B, Zlatanić A, Đonlagić J. Dynamic mechanical analysis study of the curing of phenol-formaldehyde novolac resins. in Journal of Applied Polymer Science. 2001;81(8):1902-1913.
doi:10.1002/app.1623 .

Marković, S, Dunjić, Branko, Zlatanić, Alisa, Đonlagić, Jasna, "Dynamic mechanical analysis study of the curing of phenol-formaldehyde novolac resins" in Journal of Applied Polymer Science, 81, no. 8 (2001):1902-1913,
https://doi.org/10.1002/app.1623 . .

TY  - JOUR
AU  - Marković, Slobodanka
AU  - Đonlagić, Jasna
AU  - Zakrzewska, Joanna
AU  - Dunjić, Branko
PY  - 1999
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/237
AB  - C-13-NMR spectroscopy and gel-permeation chromatography studies were carried out on different samples of typical commercial phenol-formaldehyde novolac resins. Six random novolac resins (NLO 1-6), with decreasing ratios of phenol/formaldehyde from 1:0.75 to 1:0.85, were prepared in the presence of oxalic acid at two different concentratons. A high-ortho novolac resin (NL-OO') was synthesized in the pH range 4-6 using zinc acetate (Zn(OAc)(2)), as catalyst. An improved description of the chemical structure, in terms of composition, the number of free para- and ortho-positions, the isomeric distribution, the degree of polymerization, the number average molecular weight, the degree of branching and molecular weight distribution, was obtained.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Study of the structure of phenol-formaldehyde novolac resins by NMR spectroscopy and gel-permeation chromatography
EP  - 189
IS  - 3
SP  - 177
VL  - 64
UR  - https://hdl.handle.net/21.15107/rcub_technorep_237
ER  - 

@article{
author = "Marković, Slobodanka and Đonlagić, Jasna and Zakrzewska, Joanna and Dunjić, Branko",
year = "1999",
abstract = "C-13-NMR spectroscopy and gel-permeation chromatography studies were carried out on different samples of typical commercial phenol-formaldehyde novolac resins. Six random novolac resins (NLO 1-6), with decreasing ratios of phenol/formaldehyde from 1:0.75 to 1:0.85, were prepared in the presence of oxalic acid at two different concentratons. A high-ortho novolac resin (NL-OO') was synthesized in the pH range 4-6 using zinc acetate (Zn(OAc)(2)), as catalyst. An improved description of the chemical structure, in terms of composition, the number of free para- and ortho-positions, the isomeric distribution, the degree of polymerization, the number average molecular weight, the degree of branching and molecular weight distribution, was obtained.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Study of the structure of phenol-formaldehyde novolac resins by NMR spectroscopy and gel-permeation chromatography",
pages = "189-177",
number = "3",
volume = "64",
url = "https://hdl.handle.net/21.15107/rcub_technorep_237"
}

Marković, S., Đonlagić, J., Zakrzewska, J.,& Dunjić, B.. (1999). Study of the structure of phenol-formaldehyde novolac resins by NMR spectroscopy and gel-permeation chromatography. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 64(3), 177-189.
https://hdl.handle.net/21.15107/rcub_technorep_237

Marković S, Đonlagić J, Zakrzewska J, Dunjić B. Study of the structure of phenol-formaldehyde novolac resins by NMR spectroscopy and gel-permeation chromatography. in Journal of the Serbian Chemical Society. 1999;64(3):177-189.
https://hdl.handle.net/21.15107/rcub_technorep_237 .

Marković, Slobodanka, Đonlagić, Jasna, Zakrzewska, Joanna, Dunjić, Branko, "Study of the structure of phenol-formaldehyde novolac resins by NMR spectroscopy and gel-permeation chromatography" in Journal of the Serbian Chemical Society, 64, no. 3 (1999):177-189,
https://hdl.handle.net/21.15107/rcub_technorep_237 .

TY  - JOUR
AU  - Marković, NM
AU  - Grgur, Branimir
AU  - Lucas, CA
AU  - Ross, P
PY  - 1998
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/205
AB  - The results presented in this study show definitely that copper deposition in perchloric acid is a very slow, kinetically controlled process. In nearly halide free supporting electrolytes du appeared to be deposited at underpotential in metallic islands (or 'patches') having the platinum lattice constant. The presence of Br- anions significantly enhances the kinetics of the Cu UPD on the Pt(100) electrode. The total amount of Cu deposited at underpotential is ca. 1 ML (1 ML = 1 Cu adatom per Pt atom). The results obtained from the surface X-ray diffraction measurements showed the formation of an ordered structure of Pr into a c(2 x 2) unit cell on the top of a p(1 x 1) pseudomorphic layer of Cu. In a solution free of Cu no ordered structure of Pr has been found on Pt(100). RRDE and SXS results indicate beyond any doubt that the surface coverage by Br undergoes only negligible changes upon the deposition of Cu even up to a nominal monolayer. We propose, therefore, that the mechanism of Cu UPD occurs by displacement of bromine adatoms from the Pt surface by Cu adatoms through a 'turn-over' process in which Cu is sandwiched between the Pt surface and the Brad overlayer, i.e. a Pt(100)-Cu-Br bi-layer structure.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - UPD of Cu on Pt(100): effects of anions on adsorption isotherms and interface structures
EP  - 1017
IS  - 6-7
SP  - 1009
VL  - 44
DO  - 10.1016/S0013-4686(98)00205-9
ER  - 

@article{
author = "Marković, NM and Grgur, Branimir and Lucas, CA and Ross, P",
year = "1998",
abstract = "The results presented in this study show definitely that copper deposition in perchloric acid is a very slow, kinetically controlled process. In nearly halide free supporting electrolytes du appeared to be deposited at underpotential in metallic islands (or 'patches') having the platinum lattice constant. The presence of Br- anions significantly enhances the kinetics of the Cu UPD on the Pt(100) electrode. The total amount of Cu deposited at underpotential is ca. 1 ML (1 ML = 1 Cu adatom per Pt atom). The results obtained from the surface X-ray diffraction measurements showed the formation of an ordered structure of Pr into a c(2 x 2) unit cell on the top of a p(1 x 1) pseudomorphic layer of Cu. In a solution free of Cu no ordered structure of Pr has been found on Pt(100). RRDE and SXS results indicate beyond any doubt that the surface coverage by Br undergoes only negligible changes upon the deposition of Cu even up to a nominal monolayer. We propose, therefore, that the mechanism of Cu UPD occurs by displacement of bromine adatoms from the Pt surface by Cu adatoms through a 'turn-over' process in which Cu is sandwiched between the Pt surface and the Brad overlayer, i.e. a Pt(100)-Cu-Br bi-layer structure.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "UPD of Cu on Pt(100): effects of anions on adsorption isotherms and interface structures",
pages = "1017-1009",
number = "6-7",
volume = "44",
doi = "10.1016/S0013-4686(98)00205-9"
}

Marković, N., Grgur, B., Lucas, C.,& Ross, P.. (1998). UPD of Cu on Pt(100): effects of anions on adsorption isotherms and interface structures. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 44(6-7), 1009-1017.
https://doi.org/10.1016/S0013-4686(98)00205-9

Marković N, Grgur B, Lucas C, Ross P. UPD of Cu on Pt(100): effects of anions on adsorption isotherms and interface structures. in Electrochimica Acta. 1998;44(6-7):1009-1017.
doi:10.1016/S0013-4686(98)00205-9 .

Marković, NM, Grgur, Branimir, Lucas, CA, Ross, P, "UPD of Cu on Pt(100): effects of anions on adsorption isotherms and interface structures" in Electrochimica Acta, 44, no. 6-7 (1998):1009-1017,
https://doi.org/10.1016/S0013-4686(98)00205-9 . .

TY  - JOUR
AU  - Marković, NM
AU  - Grgur, Branimir
AU  - Lucas, CA
AU  - Ross, PN
PY  - 1998
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/194
AB  - The underpotential deposition (UPD) of Pb onto Pt(100) in pure perchloric acid and in solution containing Br- was examined by classical rotating ring disk electrode (RRDPt(100)E) electrochemical methods in combination with in-situ surface X-ray scattering measurements. The total amount of Pb deposited underpotentially in 0.1 M HClO4 is approximate to 0.62 +/- 5% ML (1 ML equals 1 Pb atom per Pt surface atom), nearly equivalent to a close-packed monolayer of fully discharged Pb adatoms, e.g. 0.63 ML. In pure perchloric acid, deposition of Pb adatoms is accompanied by complete displacement of OHad from the Pt(100) surface, and in the potential range 0.15 V  lt  E  lt  0.35 V we found an ordered surface structure with a c(2 x 2) unit cell. In perchloric acid containing bromide, the maximum Pb-upd surface coverage is approximate to 0.5 ML; the deposition of 0.5 ML of Pb adatoms is accompanied by desorption of about 0.22 ML of the Br-ad adsorbed on the Pt surface at 0.6 V (ca. 0.42 ML). Thus, Pb UPD on Pt(100) from solution containing Br- is a competitive process, with the total amount of Pb deposited at underpotential being less than the amount needed to form a close-packed monolayer. As a consequence, the formation of an ordered c(2 x 2) structure is observed only at E  lt  0.15 V.
PB  - Royal Soc Chemistry, Cambridge
T2  - Journal of the Chemical Society-Faraday Transactions
T1  - Underpotential deposition of lead onto Pt(100) in acid solutions: Adsorption isotherms and interface structures
EP  - 3379
IS  - 22
SP  - 3373
VL  - 94
DO  - 10.1039/a804620d
ER  - 

@article{
author = "Marković, NM and Grgur, Branimir and Lucas, CA and Ross, PN",
year = "1998",
abstract = "The underpotential deposition (UPD) of Pb onto Pt(100) in pure perchloric acid and in solution containing Br- was examined by classical rotating ring disk electrode (RRDPt(100)E) electrochemical methods in combination with in-situ surface X-ray scattering measurements. The total amount of Pb deposited underpotentially in 0.1 M HClO4 is approximate to 0.62 +/- 5% ML (1 ML equals 1 Pb atom per Pt surface atom), nearly equivalent to a close-packed monolayer of fully discharged Pb adatoms, e.g. 0.63 ML. In pure perchloric acid, deposition of Pb adatoms is accompanied by complete displacement of OHad from the Pt(100) surface, and in the potential range 0.15 V  lt  E  lt  0.35 V we found an ordered surface structure with a c(2 x 2) unit cell. In perchloric acid containing bromide, the maximum Pb-upd surface coverage is approximate to 0.5 ML; the deposition of 0.5 ML of Pb adatoms is accompanied by desorption of about 0.22 ML of the Br-ad adsorbed on the Pt surface at 0.6 V (ca. 0.42 ML). Thus, Pb UPD on Pt(100) from solution containing Br- is a competitive process, with the total amount of Pb deposited at underpotential being less than the amount needed to form a close-packed monolayer. As a consequence, the formation of an ordered c(2 x 2) structure is observed only at E  lt  0.15 V.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Journal of the Chemical Society-Faraday Transactions",
title = "Underpotential deposition of lead onto Pt(100) in acid solutions: Adsorption isotherms and interface structures",
pages = "3379-3373",
number = "22",
volume = "94",
doi = "10.1039/a804620d"
}

Marković, N., Grgur, B., Lucas, C.,& Ross, P.. (1998). Underpotential deposition of lead onto Pt(100) in acid solutions: Adsorption isotherms and interface structures. in Journal of the Chemical Society-Faraday Transactions
Royal Soc Chemistry, Cambridge., 94(22), 3373-3379.
https://doi.org/10.1039/a804620d

Marković N, Grgur B, Lucas C, Ross P. Underpotential deposition of lead onto Pt(100) in acid solutions: Adsorption isotherms and interface structures. in Journal of the Chemical Society-Faraday Transactions. 1998;94(22):3373-3379.
doi:10.1039/a804620d .

Marković, NM, Grgur, Branimir, Lucas, CA, Ross, PN, "Underpotential deposition of lead onto Pt(100) in acid solutions: Adsorption isotherms and interface structures" in Journal of the Chemical Society-Faraday Transactions, 94, no. 22 (1998):3373-3379,
https://doi.org/10.1039/a804620d . .

TY  - JOUR
AU  - Grgur, Branimir
AU  - Marković, NM
AU  - Ross, PN
PY  - 1998
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/218
AB  - We report new results for the electrooxidation of Hz, CO and H-2/CO mixtures on a Pt75Re25 bulk alloy using surface preparation in a UHV chamber and characterization by X-ray photoelectron spectroscopy (XPS). Sputter-cleaned but not-annealed surfaces having the bulk composition were used. This alloy surface has unique properties for CO electrooxidation: finite current densities below 0.2 V (rhe), a positive reaction order in CO partial pressure of +0.5, but an unusually high slope in the log i vs E curve, about 220;mV per decade. Anodic stripping of the irreversibly adsorbed CO on this surface also occurs at an unusually low potential, initiating at about 0.15 V, but only about 1/3 of the total amount of CO on the surface is oxidized at 0.15-0.4 V, the remainder being oxidized at 0.6-0.8 V. The polarization curves for the oxidation of H-2/CO mixtures containing 0.1-2% CO are, however, very Pt-like. It appears that the low-potential oxidation of both dissolved CO and adsorbed CO on this surface occurs exclusively at Re sites, so that with the H-2/CO mixture the Pt sites remain fully covered (and thus deactivated) by COads.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Electrooxidation of H-2, CO and H-2/CO mixtures on a well-characterized Pt-Re bulk alloy electrode and comparison with other Pt binary alloys
EP  - 3635
IS  - 24
SP  - 3631
VL  - 43
DO  - 10.1016/S0013-4686(98)00120-0
ER  - 

@article{
author = "Grgur, Branimir and Marković, NM and Ross, PN",
year = "1998",
abstract = "We report new results for the electrooxidation of Hz, CO and H-2/CO mixtures on a Pt75Re25 bulk alloy using surface preparation in a UHV chamber and characterization by X-ray photoelectron spectroscopy (XPS). Sputter-cleaned but not-annealed surfaces having the bulk composition were used. This alloy surface has unique properties for CO electrooxidation: finite current densities below 0.2 V (rhe), a positive reaction order in CO partial pressure of +0.5, but an unusually high slope in the log i vs E curve, about 220;mV per decade. Anodic stripping of the irreversibly adsorbed CO on this surface also occurs at an unusually low potential, initiating at about 0.15 V, but only about 1/3 of the total amount of CO on the surface is oxidized at 0.15-0.4 V, the remainder being oxidized at 0.6-0.8 V. The polarization curves for the oxidation of H-2/CO mixtures containing 0.1-2% CO are, however, very Pt-like. It appears that the low-potential oxidation of both dissolved CO and adsorbed CO on this surface occurs exclusively at Re sites, so that with the H-2/CO mixture the Pt sites remain fully covered (and thus deactivated) by COads.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Electrooxidation of H-2, CO and H-2/CO mixtures on a well-characterized Pt-Re bulk alloy electrode and comparison with other Pt binary alloys",
pages = "3635-3631",
number = "24",
volume = "43",
doi = "10.1016/S0013-4686(98)00120-0"
}

Grgur, B., Marković, N.,& Ross, P.. (1998). Electrooxidation of H-2, CO and H-2/CO mixtures on a well-characterized Pt-Re bulk alloy electrode and comparison with other Pt binary alloys. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 43(24), 3631-3635.
https://doi.org/10.1016/S0013-4686(98)00120-0

Grgur B, Marković N, Ross P. Electrooxidation of H-2, CO and H-2/CO mixtures on a well-characterized Pt-Re bulk alloy electrode and comparison with other Pt binary alloys. in Electrochimica Acta. 1998;43(24):3631-3635.
doi:10.1016/S0013-4686(98)00120-0 .

Grgur, Branimir, Marković, NM, Ross, PN, "Electrooxidation of H-2, CO and H-2/CO mixtures on a well-characterized Pt-Re bulk alloy electrode and comparison with other Pt binary alloys" in Electrochimica Acta, 43, no. 24 (1998):3631-3635,
https://doi.org/10.1016/S0013-4686(98)00120-0 . .

TY  - JOUR
AU  - Marković, NM
AU  - Grgur, Branimir
AU  - Lucas, CA
AU  - Ross, PN
PY  - 1998
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/210
AB  - The underpotential deposition (upd) of Pb onto Pt(lll) in solution containing Br- was examined by classical RRDP(111)E electrochemical methods in combination with in situ surface X-ray scattering measurements. The results show that Pb upd onto Pt(lll) in the presence of bromide is a competitive process with the total amount of Pb deposited at underpotential being only ca. 0.51 +/- 5% ML, less than the amount needed to form a close-packed monolayer, 0.63 ML (1 ML equals 1 Pb atom per Pt surface atom). Deposition of Pb adatoms is accompanied by desorption of about one-half of the bromide adsorbed on the Pt surface at higher potentials, leaving co-adsorbed bromide both in and on-top-of the adlayer. In the potential region where the ratio of co-adsorbed species is close to one (E approximate to OV) there is the slow formation (over a period of ca. 2h) of an ordered surface alloy, which has a p(2 x 2) unit cell. No other ordered structures of Pb are observed in the underpotential region.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Underpotential deposition of lead on Pt(111) in the presence of bromide: RRDPt(111)E and X-ray scattering studies
EP  - 188
IS  - 2
SP  - 183
VL  - 448
DO  - 10.1016/S0022-0728(97)00012-0
ER  - 

@article{
author = "Marković, NM and Grgur, Branimir and Lucas, CA and Ross, PN",
year = "1998",
abstract = "The underpotential deposition (upd) of Pb onto Pt(lll) in solution containing Br- was examined by classical RRDP(111)E electrochemical methods in combination with in situ surface X-ray scattering measurements. The results show that Pb upd onto Pt(lll) in the presence of bromide is a competitive process with the total amount of Pb deposited at underpotential being only ca. 0.51 +/- 5% ML, less than the amount needed to form a close-packed monolayer, 0.63 ML (1 ML equals 1 Pb atom per Pt surface atom). Deposition of Pb adatoms is accompanied by desorption of about one-half of the bromide adsorbed on the Pt surface at higher potentials, leaving co-adsorbed bromide both in and on-top-of the adlayer. In the potential region where the ratio of co-adsorbed species is close to one (E approximate to OV) there is the slow formation (over a period of ca. 2h) of an ordered surface alloy, which has a p(2 x 2) unit cell. No other ordered structures of Pb are observed in the underpotential region.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Underpotential deposition of lead on Pt(111) in the presence of bromide: RRDPt(111)E and X-ray scattering studies",
pages = "188-183",
number = "2",
volume = "448",
doi = "10.1016/S0022-0728(97)00012-0"
}

Marković, N., Grgur, B., Lucas, C.,& Ross, P.. (1998). Underpotential deposition of lead on Pt(111) in the presence of bromide: RRDPt(111)E and X-ray scattering studies. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 448(2), 183-188.
https://doi.org/10.1016/S0022-0728(97)00012-0

Marković N, Grgur B, Lucas C, Ross P. Underpotential deposition of lead on Pt(111) in the presence of bromide: RRDPt(111)E and X-ray scattering studies. in Journal of Electroanalytical Chemistry. 1998;448(2):183-188.
doi:10.1016/S0022-0728(97)00012-0 .

Marković, NM, Grgur, Branimir, Lucas, CA, Ross, PN, "Underpotential deposition of lead on Pt(111) in the presence of bromide: RRDPt(111)E and X-ray scattering studies" in Journal of Electroanalytical Chemistry, 448, no. 2 (1998):183-188,
https://doi.org/10.1016/S0022-0728(97)00012-0 . .

TY  - JOUR
AU  - Grgur, Branimir
AU  - Marković, NM
AU  - Ross, PN
PY  - 1998
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/188
AB  - The electrochemical oxidation of hydrogen (H-2), carbon monoxide (CO), and their mixtures (500 ppm-2%) on a well-characterized Pt70Mo30 bulk alloy was examined using the rotating disk electrode technique in 0.5 M H2SO4 at 333 K, The electrodes were transferred to and from a UHV chamber, where surface analyses were conducted using a combination of low-energy ion scattering (LEIS), Auger electron spectroscopy (AES), and X-ray photoelectron spectroscopy (XPS). The surface composition of this alloy after sputter-etching and annealing in UHV was slightly enriched in Pt to a composition of Pt77Mo23 The kinetics of H-2 oxidation are not measurably affected by the presence of the Mo in the surface. The shapes of the polarization curves for the oxidation of the H-2/CO mixtures are qualitatively similar to those for the Pt50Ru50 alloy examined previously: a high current-potential slope ica. 0.5 V/dec at low overpotential followed by a transition to a highly active state when the current approaches the diffusion-limiting current; the potential where the transition to the active state occurs decreases with decreasing CO concentration and decreases with increasing temperature; the current in the low-overpotential region is roughly inverse half-order in the CO partial pressure. The current densities in the low-overpotential region an comparable to those on Pt50Ru50 alloy and about a factor Or 50 times those on a pure rt surface, while the anodic stripping of irreversibly adsorbed CO is very different from that on the Pt50Ru50 alloy, with most of the COads being oxidized only above 0.6 V (RHE), there is direct evidence for the oxidation of small amounts of COads in the low-overpotential region of 0.05-0.5 V. The mechanism of action of Mo in the Pt surface in enhancing Hr oxidation in the presence of CO thus appears to be very similar to that of Ru: a reduction in the steady-state coverage of COads on the Pt sites by oxidative removal, freeing Pt sites for H-2 oxidation.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Physical Chemistry B
T1  - Electrooxidation of H-2, CO, and H-2/CO mixtures on a well-characterized Pt70Mo30 bulk alloy electrode
EP  - 2501
IS  - 14
SP  - 2494
VL  - 102
DO  - 10.1021/jp972692s
ER  - 

@article{
author = "Grgur, Branimir and Marković, NM and Ross, PN",
year = "1998",
abstract = "The electrochemical oxidation of hydrogen (H-2), carbon monoxide (CO), and their mixtures (500 ppm-2%) on a well-characterized Pt70Mo30 bulk alloy was examined using the rotating disk electrode technique in 0.5 M H2SO4 at 333 K, The electrodes were transferred to and from a UHV chamber, where surface analyses were conducted using a combination of low-energy ion scattering (LEIS), Auger electron spectroscopy (AES), and X-ray photoelectron spectroscopy (XPS). The surface composition of this alloy after sputter-etching and annealing in UHV was slightly enriched in Pt to a composition of Pt77Mo23 The kinetics of H-2 oxidation are not measurably affected by the presence of the Mo in the surface. The shapes of the polarization curves for the oxidation of the H-2/CO mixtures are qualitatively similar to those for the Pt50Ru50 alloy examined previously: a high current-potential slope ica. 0.5 V/dec at low overpotential followed by a transition to a highly active state when the current approaches the diffusion-limiting current; the potential where the transition to the active state occurs decreases with decreasing CO concentration and decreases with increasing temperature; the current in the low-overpotential region is roughly inverse half-order in the CO partial pressure. The current densities in the low-overpotential region an comparable to those on Pt50Ru50 alloy and about a factor Or 50 times those on a pure rt surface, while the anodic stripping of irreversibly adsorbed CO is very different from that on the Pt50Ru50 alloy, with most of the COads being oxidized only above 0.6 V (RHE), there is direct evidence for the oxidation of small amounts of COads in the low-overpotential region of 0.05-0.5 V. The mechanism of action of Mo in the Pt surface in enhancing Hr oxidation in the presence of CO thus appears to be very similar to that of Ru: a reduction in the steady-state coverage of COads on the Pt sites by oxidative removal, freeing Pt sites for H-2 oxidation.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Physical Chemistry B",
title = "Electrooxidation of H-2, CO, and H-2/CO mixtures on a well-characterized Pt70Mo30 bulk alloy electrode",
pages = "2501-2494",
number = "14",
volume = "102",
doi = "10.1021/jp972692s"
}

Grgur, B., Marković, N.,& Ross, P.. (1998). Electrooxidation of H-2, CO, and H-2/CO mixtures on a well-characterized Pt70Mo30 bulk alloy electrode. in Journal of Physical Chemistry B
Amer Chemical Soc, Washington., 102(14), 2494-2501.
https://doi.org/10.1021/jp972692s

Grgur B, Marković N, Ross P. Electrooxidation of H-2, CO, and H-2/CO mixtures on a well-characterized Pt70Mo30 bulk alloy electrode. in Journal of Physical Chemistry B. 1998;102(14):2494-2501.
doi:10.1021/jp972692s .

Grgur, Branimir, Marković, NM, Ross, PN, "Electrooxidation of H-2, CO, and H-2/CO mixtures on a well-characterized Pt70Mo30 bulk alloy electrode" in Journal of Physical Chemistry B, 102, no. 14 (1998):2494-2501,
https://doi.org/10.1021/jp972692s . .

TY  - JOUR
AU  - Grgur, Branimir
AU  - Marković, NM
AU  - Ross, PN
PY  - 1997
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/112
AB  - Underpotential deposition (UPD) of lead (Pb-upd) on Pt(111) in perchloric acid solution was studied using the rotation ring disk, electrode (RRDPt(111)E) method for measurements of the Pb2+ ion-specific flux. The total amount of Pb deposited underpotentially is 0.62 +/- 5% monolayer (1 monolayer = 1 Pb per Pt) equivalent to a close-packed monolayer of fully discharged Pb adatoms. The electrosorption valence, gamma(Pb), of Pb-upd is approximate to gamma(Pb) = 2, implying that two electrons per Pb-upd adatom are exchanged through the interface. In this work we showed that the formation of this close-packed monolayer of Pb-upd occurs through four distinctive voltammetric features: two major sharp peaks at approximate to 0.5 V (vs saturated calomel electrode) and 0.3 V and smaller reversible peaks at 0 V and -0.15 V. We concluded that the adsorption of OHad is shifted negatively by Pb-upd adatoms, with the shift attributed to induced adsorption of OHad onto Pt atoms neighboring the Pb-upd adatoms due to lowering of the local point of zero charge (pcz) by the Pb-upd. Consequently, the pH dependence of the Pb UPD peak at 0.3 V appears entirely through a pH-dependent adsorption of OHad onto the Pt(111) surface modified by Pb-upd adatoms. The pH independence of the peak at 0.5 V is consistent with the Pb2+ ion-flux measurements that the main process associated with this pseudocapacitance is Pb UPD. The smaller peaks observed at lower potentials are probably associated with a final deposition of Pb-upd adatoms along step edges and compacting of adatoms on the (111)-terraces to form an ordered (3 x root 3) close-packed structure.
PB  - Amer Chemical Soc, Washington
T2  - Langmuir
T1  - Underpotential deposition of lead on Pt(111) in perchloric acid solution: RRDPt(111)E measurements
EP  - 6374
IS  - 24
SP  - 6370
VL  - 13
DO  - 10.1021/la970699v
ER  - 

@article{
author = "Grgur, Branimir and Marković, NM and Ross, PN",
year = "1997",
abstract = "Underpotential deposition (UPD) of lead (Pb-upd) on Pt(111) in perchloric acid solution was studied using the rotation ring disk, electrode (RRDPt(111)E) method for measurements of the Pb2+ ion-specific flux. The total amount of Pb deposited underpotentially is 0.62 +/- 5% monolayer (1 monolayer = 1 Pb per Pt) equivalent to a close-packed monolayer of fully discharged Pb adatoms. The electrosorption valence, gamma(Pb), of Pb-upd is approximate to gamma(Pb) = 2, implying that two electrons per Pb-upd adatom are exchanged through the interface. In this work we showed that the formation of this close-packed monolayer of Pb-upd occurs through four distinctive voltammetric features: two major sharp peaks at approximate to 0.5 V (vs saturated calomel electrode) and 0.3 V and smaller reversible peaks at 0 V and -0.15 V. We concluded that the adsorption of OHad is shifted negatively by Pb-upd adatoms, with the shift attributed to induced adsorption of OHad onto Pt atoms neighboring the Pb-upd adatoms due to lowering of the local point of zero charge (pcz) by the Pb-upd. Consequently, the pH dependence of the Pb UPD peak at 0.3 V appears entirely through a pH-dependent adsorption of OHad onto the Pt(111) surface modified by Pb-upd adatoms. The pH independence of the peak at 0.5 V is consistent with the Pb2+ ion-flux measurements that the main process associated with this pseudocapacitance is Pb UPD. The smaller peaks observed at lower potentials are probably associated with a final deposition of Pb-upd adatoms along step edges and compacting of adatoms on the (111)-terraces to form an ordered (3 x root 3) close-packed structure.",
publisher = "Amer Chemical Soc, Washington",
journal = "Langmuir",
title = "Underpotential deposition of lead on Pt(111) in perchloric acid solution: RRDPt(111)E measurements",
pages = "6374-6370",
number = "24",
volume = "13",
doi = "10.1021/la970699v"
}

Grgur, B., Marković, N.,& Ross, P.. (1997). Underpotential deposition of lead on Pt(111) in perchloric acid solution: RRDPt(111)E measurements. in Langmuir
Amer Chemical Soc, Washington., 13(24), 6370-6374.
https://doi.org/10.1021/la970699v

Grgur B, Marković N, Ross P. Underpotential deposition of lead on Pt(111) in perchloric acid solution: RRDPt(111)E measurements. in Langmuir. 1997;13(24):6370-6374.
doi:10.1021/la970699v .

Grgur, Branimir, Marković, NM, Ross, PN, "Underpotential deposition of lead on Pt(111) in perchloric acid solution: RRDPt(111)E measurements" in Langmuir, 13, no. 24 (1997):6370-6374,
https://doi.org/10.1021/la970699v . .

TY  - JOUR
AU  - Grgur, Branimir
AU  - Zhuang, G
AU  - Marković, NM
AU  - Ross, PN
PY  - 1997
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/137
AB  - The electrochemical oxidation of hydrogen in the presence of carbon monoxide (0.05-2%) on a well-characterized Pt75Mo25 alloy surface was examined using the rotating disk electrode technique in 0.5 M H2SO4 at 333 K. The surface composition of this alloy determined by low-energy ion scattering after sputter cleaning and annealing in UHV was essentially the same as the bulk. The shapes of the polarization curves are qualitatively similar to those for the Pt50Ru50 alloy examined previously: a high Tafel-slope (ca. 0.5 V/dec) region at low overpotential followed by a transition to a highly actively state where the current approaches the diffusion-limiting current; the potential where the transition to the active state occurs decreases with decreasing CO concentration, and the current in the low-overpotential region is roughly inverse half-order in the CO partial pressure. The magnitude of the current in the low-overpotential region on the Pt75Mo25 alloy is nearly the same as on the Pt50Ru50 alloy, but the potential for the transition to the active state is about 0.15 V higher. The magnitude of the current at 0.05-0.1 V with H-2 containing 100 ppm CO is sufficiently high that Pt-Mo alloy is of technical interest as an anode catalyst for low-temperature fuel cells fed with a reformed hydrocarbon fuel.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Physical Chemistry B
T1  - Electrooxidation of H-2/CO mixtures on a well-characterized Pt75Mo25 alloy surface
EP  - 3913
IS  - 20
SP  - 3910
VL  - 101
DO  - 10.1021/jp9704168
ER  - 

@article{
author = "Grgur, Branimir and Zhuang, G and Marković, NM and Ross, PN",
year = "1997",
abstract = "The electrochemical oxidation of hydrogen in the presence of carbon monoxide (0.05-2%) on a well-characterized Pt75Mo25 alloy surface was examined using the rotating disk electrode technique in 0.5 M H2SO4 at 333 K. The surface composition of this alloy determined by low-energy ion scattering after sputter cleaning and annealing in UHV was essentially the same as the bulk. The shapes of the polarization curves are qualitatively similar to those for the Pt50Ru50 alloy examined previously: a high Tafel-slope (ca. 0.5 V/dec) region at low overpotential followed by a transition to a highly actively state where the current approaches the diffusion-limiting current; the potential where the transition to the active state occurs decreases with decreasing CO concentration, and the current in the low-overpotential region is roughly inverse half-order in the CO partial pressure. The magnitude of the current in the low-overpotential region on the Pt75Mo25 alloy is nearly the same as on the Pt50Ru50 alloy, but the potential for the transition to the active state is about 0.15 V higher. The magnitude of the current at 0.05-0.1 V with H-2 containing 100 ppm CO is sufficiently high that Pt-Mo alloy is of technical interest as an anode catalyst for low-temperature fuel cells fed with a reformed hydrocarbon fuel.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Physical Chemistry B",
title = "Electrooxidation of H-2/CO mixtures on a well-characterized Pt75Mo25 alloy surface",
pages = "3913-3910",
number = "20",
volume = "101",
doi = "10.1021/jp9704168"
}

Grgur, B., Zhuang, G., Marković, N.,& Ross, P.. (1997). Electrooxidation of H-2/CO mixtures on a well-characterized Pt75Mo25 alloy surface. in Journal of Physical Chemistry B
Amer Chemical Soc, Washington., 101(20), 3910-3913.
https://doi.org/10.1021/jp9704168

Grgur B, Zhuang G, Marković N, Ross P. Electrooxidation of H-2/CO mixtures on a well-characterized Pt75Mo25 alloy surface. in Journal of Physical Chemistry B. 1997;101(20):3910-3913.
doi:10.1021/jp9704168 .

Grgur, Branimir, Zhuang, G, Marković, NM, Ross, PN, "Electrooxidation of H-2/CO mixtures on a well-characterized Pt75Mo25 alloy surface" in Journal of Physical Chemistry B, 101, no. 20 (1997):3910-3913,
https://doi.org/10.1021/jp9704168 . .

TY  - JOUR
AU  - Grgur, Branimir
AU  - Marković, NM
AU  - Ross, PN
PY  - 1997
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/148
AB  - Using the rotating ring-disk technique (RRDPt(hkl)E), the oxygen-reduction reaction (ORR) was studied in sulfuric acid solution over the temperature range 298-333 K. At the same temperature, the exchange current density increased in the order, i(111)(0) lt i(100)(0) lt i(110)(0) which gives the order of absolute kinetic activities of Pt(hkl) in 0.05 mol/L H2SO4:Pt(111) lt Pt(100) lt Pt(110). We found that at high current densities every crystal face has an ideally temperature-dependent Tafel slope, i.e., -2 x 2.3(RT/F). The activation energy for the ORR is independent of the surface geometry, Delta H-hkl(#) = 42 kJ/mol. The insensitivity of the activation energy to surface structure implies that the reaction pathway for the ORR is the same on all three single-crystal faces. A "series" pathway for the ORR was proposed, with the first electron transfer being the rate-determining step. The structure sensitivity in the kinetics of the ORR on Pt(hkl) is attributed to the structure-sensitive adsorption of bisulfate and hydroxyl anions and a simple site-blocking effect of these adsorbed anions on the rate of the ORR.
PB  - Natl Research Council Canada, Ottawa
T2  - Canadian Journal of Chemistry-Revue Canadienne De Chimie
T1  - Temperature dependent oxygen electrochemistry on platinum low index single crystal surfaces in acid solutions
EP  - 1471
IS  - 11
SP  - 1465
VL  - 75
DO  - 10.1139/v97-176
ER  - 

@article{
author = "Grgur, Branimir and Marković, NM and Ross, PN",
year = "1997",
abstract = "Using the rotating ring-disk technique (RRDPt(hkl)E), the oxygen-reduction reaction (ORR) was studied in sulfuric acid solution over the temperature range 298-333 K. At the same temperature, the exchange current density increased in the order, i(111)(0) lt i(100)(0) lt i(110)(0) which gives the order of absolute kinetic activities of Pt(hkl) in 0.05 mol/L H2SO4:Pt(111) lt Pt(100) lt Pt(110). We found that at high current densities every crystal face has an ideally temperature-dependent Tafel slope, i.e., -2 x 2.3(RT/F). The activation energy for the ORR is independent of the surface geometry, Delta H-hkl(#) = 42 kJ/mol. The insensitivity of the activation energy to surface structure implies that the reaction pathway for the ORR is the same on all three single-crystal faces. A "series" pathway for the ORR was proposed, with the first electron transfer being the rate-determining step. The structure sensitivity in the kinetics of the ORR on Pt(hkl) is attributed to the structure-sensitive adsorption of bisulfate and hydroxyl anions and a simple site-blocking effect of these adsorbed anions on the rate of the ORR.",
publisher = "Natl Research Council Canada, Ottawa",
journal = "Canadian Journal of Chemistry-Revue Canadienne De Chimie",
title = "Temperature dependent oxygen electrochemistry on platinum low index single crystal surfaces in acid solutions",
pages = "1471-1465",
number = "11",
volume = "75",
doi = "10.1139/v97-176"
}

Grgur, B., Marković, N.,& Ross, P.. (1997). Temperature dependent oxygen electrochemistry on platinum low index single crystal surfaces in acid solutions. in Canadian Journal of Chemistry-Revue Canadienne De Chimie
Natl Research Council Canada, Ottawa., 75(11), 1465-1471.
https://doi.org/10.1139/v97-176

Grgur B, Marković N, Ross P. Temperature dependent oxygen electrochemistry on platinum low index single crystal surfaces in acid solutions. in Canadian Journal of Chemistry-Revue Canadienne De Chimie. 1997;75(11):1465-1471.
doi:10.1139/v97-176 .

Grgur, Branimir, Marković, NM, Ross, PN, "Temperature dependent oxygen electrochemistry on platinum low index single crystal surfaces in acid solutions" in Canadian Journal of Chemistry-Revue Canadienne De Chimie, 75, no. 11 (1997):1465-1471,
https://doi.org/10.1139/v97-176 . .

TY  - JOUR
AU  - Marković, NM
AU  - Grgur, Branimir
AU  - Ross, PN
PY  - 1997
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/145
AB  - The hydrogen evolution (HER) and the hydrogen oxidation reaction (HOR) were studied on platinum single crystals in a sulfuric acid solution over the temperature range 274-333 K. We found, for the first rime, that at a fixed temperature (274 K) the exchange current densities (i(o)) increase in the order (111) much less than (100)  lt  (110), with the i(o) on the (110) surface being 3 times that on the (111) surface. We also found that each crystal face has an unique, temperature-dependent Tafel slope for the HOR, and that the activation energies for the HER and the HOR decrease in the sequence Delta H-111(#)  gt  Delta H-100(#)  gt  Delta H-110(#), the same sequence as the order these differences in activation energy with crystal face are attributed to structure-sensitive heats of adsorption of the active intermediate, H-ad, whose physical state is unclear. We analyzed the kinetic data with a model for the coupling of this unknown state, Had, with the well-known adsorbed state of hydrogen, H-upd, whose adsorption energy is strongly structure-sensitive. We concluded that on Pt(110), the reaction follows the Tafel-Volmer mechanism with the Tafel (recombination) step rate determining. On Pt(100), the reaction follows the Heyrovsky-Volmer sequence, with the Heyrovsky (ion-atom) reaction step being the rate-determining step. The reaction mechanism on Pt(111) could not, however, be resolved by analyzing the kinetic parameters. The relatively low activity and high activation energy for the (111) surface is attributed to strong repulsive interaction between H-ad adatoms on this surface.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Physical Chemistry B
T1  - Temperature-dependent hydrogen electrochemistry on platinum low-index single-crystal surfaces in acid solutions
EP  - 5413
IS  - 27
SP  - 5405
VL  - 101
DO  - 10.1021/jp970930d
ER  - 

@article{
author = "Marković, NM and Grgur, Branimir and Ross, PN",
year = "1997",
abstract = "The hydrogen evolution (HER) and the hydrogen oxidation reaction (HOR) were studied on platinum single crystals in a sulfuric acid solution over the temperature range 274-333 K. We found, for the first rime, that at a fixed temperature (274 K) the exchange current densities (i(o)) increase in the order (111) much less than (100)  lt  (110), with the i(o) on the (110) surface being 3 times that on the (111) surface. We also found that each crystal face has an unique, temperature-dependent Tafel slope for the HOR, and that the activation energies for the HER and the HOR decrease in the sequence Delta H-111(#)  gt  Delta H-100(#)  gt  Delta H-110(#), the same sequence as the order these differences in activation energy with crystal face are attributed to structure-sensitive heats of adsorption of the active intermediate, H-ad, whose physical state is unclear. We analyzed the kinetic data with a model for the coupling of this unknown state, Had, with the well-known adsorbed state of hydrogen, H-upd, whose adsorption energy is strongly structure-sensitive. We concluded that on Pt(110), the reaction follows the Tafel-Volmer mechanism with the Tafel (recombination) step rate determining. On Pt(100), the reaction follows the Heyrovsky-Volmer sequence, with the Heyrovsky (ion-atom) reaction step being the rate-determining step. The reaction mechanism on Pt(111) could not, however, be resolved by analyzing the kinetic parameters. The relatively low activity and high activation energy for the (111) surface is attributed to strong repulsive interaction between H-ad adatoms on this surface.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Physical Chemistry B",
title = "Temperature-dependent hydrogen electrochemistry on platinum low-index single-crystal surfaces in acid solutions",
pages = "5413-5405",
number = "27",
volume = "101",
doi = "10.1021/jp970930d"
}

Marković, N., Grgur, B.,& Ross, P.. (1997). Temperature-dependent hydrogen electrochemistry on platinum low-index single-crystal surfaces in acid solutions. in Journal of Physical Chemistry B
Amer Chemical Soc, Washington., 101(27), 5405-5413.
https://doi.org/10.1021/jp970930d

Marković N, Grgur B, Ross P. Temperature-dependent hydrogen electrochemistry on platinum low-index single-crystal surfaces in acid solutions. in Journal of Physical Chemistry B. 1997;101(27):5405-5413.
doi:10.1021/jp970930d .

Marković, NM, Grgur, Branimir, Ross, PN, "Temperature-dependent hydrogen electrochemistry on platinum low-index single-crystal surfaces in acid solutions" in Journal of Physical Chemistry B, 101, no. 27 (1997):5405-5413,
https://doi.org/10.1021/jp970930d . .

TY  - JOUR
AU  - Marković, NM
AU  - Grgur, Branimir
AU  - Lucas, CA
AU  - Ross, PN
PY  - 1997
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/130
AB  - A new type of flame-annealing method has been developed for the preparation of surfaces having either fcc(110)-(1x1) or fcc(110)-(1 x 2) symmetry. In situ X-ray scattering studies show that both the Pt(110)-(1 x 2) and Pt(110)-(1 x 1) surfaces are stable in the potential region between 0 and 1.0 V. Adsorption of CO on the (1 x 2) surface in solution does not induce the (1 x 2)-- gt (1 x 1) transition that is observed in UHV upon adsorption of CO. Nominally identical saturation coverages of hydrogen (H-upd) and COad are observed on the two surfaces, implying that two H-upd atoms or two COad molecules are adsorbed per unit cell of the reconstructed (1 x 2) surface. A significant increase in the interatomic spacing between the first and second layer of the reconstructed (1 x 2) surface occurs upon hydrogen adsorption to full coverage. Occupation of subsurface sites for H-upd are inferred from this result. The (1 x 2) surface is found to have a much higher catalytic activity for the electro-oxidation of CO; the anodic oxidation of either COad or dissolved COgas occurs at approximate to 0.3 V lower potential on the (1 x 2) than the (1 x 1) surface.
PB  - Elsevier Science Bv, Amsterdam
T2  - Surface Science
T1  - Surface electrochemistry of CO on Pt(110)-(1x2) and Pt(110)-(1x1) surfaces
EP  - L814
IS  - 1-3
SP  - L805
VL  - 384
DO  - 10.1016/S0039-6028(97)00252-5
ER  - 

@article{
author = "Marković, NM and Grgur, Branimir and Lucas, CA and Ross, PN",
year = "1997",
abstract = "A new type of flame-annealing method has been developed for the preparation of surfaces having either fcc(110)-(1x1) or fcc(110)-(1 x 2) symmetry. In situ X-ray scattering studies show that both the Pt(110)-(1 x 2) and Pt(110)-(1 x 1) surfaces are stable in the potential region between 0 and 1.0 V. Adsorption of CO on the (1 x 2) surface in solution does not induce the (1 x 2)-- gt (1 x 1) transition that is observed in UHV upon adsorption of CO. Nominally identical saturation coverages of hydrogen (H-upd) and COad are observed on the two surfaces, implying that two H-upd atoms or two COad molecules are adsorbed per unit cell of the reconstructed (1 x 2) surface. A significant increase in the interatomic spacing between the first and second layer of the reconstructed (1 x 2) surface occurs upon hydrogen adsorption to full coverage. Occupation of subsurface sites for H-upd are inferred from this result. The (1 x 2) surface is found to have a much higher catalytic activity for the electro-oxidation of CO; the anodic oxidation of either COad or dissolved COgas occurs at approximate to 0.3 V lower potential on the (1 x 2) than the (1 x 1) surface.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Surface Science",
title = "Surface electrochemistry of CO on Pt(110)-(1x2) and Pt(110)-(1x1) surfaces",
pages = "L814-L805",
number = "1-3",
volume = "384",
doi = "10.1016/S0039-6028(97)00252-5"
}

Marković, N., Grgur, B., Lucas, C.,& Ross, P.. (1997). Surface electrochemistry of CO on Pt(110)-(1x2) and Pt(110)-(1x1) surfaces. in Surface Science
Elsevier Science Bv, Amsterdam., 384(1-3), L805-L814.
https://doi.org/10.1016/S0039-6028(97)00252-5

Marković N, Grgur B, Lucas C, Ross P. Surface electrochemistry of CO on Pt(110)-(1x2) and Pt(110)-(1x1) surfaces. in Surface Science. 1997;384(1-3):L805-L814.
doi:10.1016/S0039-6028(97)00252-5 .

Marković, NM, Grgur, Branimir, Lucas, CA, Ross, PN, "Surface electrochemistry of CO on Pt(110)-(1x2) and Pt(110)-(1x1) surfaces" in Surface Science, 384, no. 1-3 (1997):L805-L814,
https://doi.org/10.1016/S0039-6028(97)00252-5 . .