TY  - JOUR
AU  - Gojković, Snežana Lj.
AU  - Tripković, Amalija
AU  - Stevanović, Rade M.
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1108
AB  - The electrochemical oxidation of methanol, 2-propanol, and their mixtures was investigated on a Pt/C thin film electrode in acid solution. It was confirmed that the oxidation of 2-propanol commences at less positive potentials than that of methanol and exhibits significantly higher oxidation current densities at low potentials. When both methanol and 2-propanol were present in the solution, the onset of the oxidation current was the same as for the oxidation of pure 2-propanol. Although both alcohols inhibit the oxidation reaction of each other to a certain extent, steady-state polarization measurements showed that their mixture provides higher current densities than single alcohols over the entire potential region from the hydrogen region to oxide formation on the Pt surface. This implies that the addition of 2-propanol into the fuel may extend the operational range of direct methanol fuel cells.
AB  - Isptivana je elektrohemijska oksidacija metanola, 2-propanola i njihovih smeša na tankom filmu Pt/C katalizatora u kiseloj sredini. Potvrđeno je da oksidacija 2-propanola počinje na manje pozitivnim potencijalima nego oksidacija metanola i da daje znatno veće gustine struja pri nižim potencijalima. Kada su i metanol i 2-propanol prisutni u rastvoru, struja oksidacije se pojavljuje na istom potencijalu kao u slučaju čistog 2-propanola. Mada oba alkohola inhibiraju oksidaciju onog drugog u izvesnoj meri, stacionarma merenja su pokazala da njihova smeša daje veće gustine struja od pojedinačnih alkohola u celoj oblasti potencijala od vodonične oblasti pa do formiranja oksida na platini. To ukazuje da se radni opseg gorivog sprega sa metanolom može povećati dodatkom 2-propanola u gorivo.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells
T1  - Smeša metanola i 2-propanola kao potencijalno gorivo u gorivim spregovima sa alkoholom
EP  - 1425
IS  - 12
SP  - 1419
VL  - 72
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1108
ER  - 

@article{
author = "Gojković, Snežana Lj. and Tripković, Amalija and Stevanović, Rade M.",
year = "2007",
abstract = "The electrochemical oxidation of methanol, 2-propanol, and their mixtures was investigated on a Pt/C thin film electrode in acid solution. It was confirmed that the oxidation of 2-propanol commences at less positive potentials than that of methanol and exhibits significantly higher oxidation current densities at low potentials. When both methanol and 2-propanol were present in the solution, the onset of the oxidation current was the same as for the oxidation of pure 2-propanol. Although both alcohols inhibit the oxidation reaction of each other to a certain extent, steady-state polarization measurements showed that their mixture provides higher current densities than single alcohols over the entire potential region from the hydrogen region to oxide formation on the Pt surface. This implies that the addition of 2-propanol into the fuel may extend the operational range of direct methanol fuel cells., Isptivana je elektrohemijska oksidacija metanola, 2-propanola i njihovih smeša na tankom filmu Pt/C katalizatora u kiseloj sredini. Potvrđeno je da oksidacija 2-propanola počinje na manje pozitivnim potencijalima nego oksidacija metanola i da daje znatno veće gustine struja pri nižim potencijalima. Kada su i metanol i 2-propanol prisutni u rastvoru, struja oksidacije se pojavljuje na istom potencijalu kao u slučaju čistog 2-propanola. Mada oba alkohola inhibiraju oksidaciju onog drugog u izvesnoj meri, stacionarma merenja su pokazala da njihova smeša daje veće gustine struja od pojedinačnih alkohola u celoj oblasti potencijala od vodonične oblasti pa do formiranja oksida na platini. To ukazuje da se radni opseg gorivog sprega sa metanolom može povećati dodatkom 2-propanola u gorivo.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells, Smeša metanola i 2-propanola kao potencijalno gorivo u gorivim spregovima sa alkoholom",
pages = "1425-1419",
number = "12",
volume = "72",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1108"
}

Gojković, S. Lj., Tripković, A.,& Stevanović, R. M.. (2007). Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 72(12), 1419-1425.
https://hdl.handle.net/21.15107/rcub_technorep_1108

Gojković SL, Tripković A, Stevanović RM. Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells. in Journal of the Serbian Chemical Society. 2007;72(12):1419-1425.
https://hdl.handle.net/21.15107/rcub_technorep_1108 .

Gojković, Snežana Lj., Tripković, Amalija, Stevanović, Rade M., "Mixtures of methanol and 2-propanol as a potential fuel for direct alcohol fuel cells" in Journal of the Serbian Chemical Society, 72, no. 12 (2007):1419-1425,
https://hdl.handle.net/21.15107/rcub_technorep_1108 .

TY  - JOUR
AU  - Gojković, Snežana Lj.
AU  - Tripković, Amalija
AU  - Stevanović, Rade M.
AU  - Krstajić, Nedeljko V.
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1153
AB  - Surface processes on Pt4Mo alloy well-defined by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) were studied in acid solution by cyclic voltammetry. It was established that Mo in the alloy is much more resistant toward electrochemical dissolution than pure Mo. During the potential cycling of Pt4Mo surfaces in completely quiescent electrolyte, hydrous Mo-oxide could be generated on Mo sites. Investigation of the formic acid oxidation revealed that this type of Mo-oxide enhances the reaction rate by more than I order of magnitude with respect to pure Pt. Surface poisoning by COads is significantly lower on Pt4Mo alloy than on pure Pt. The effect of hydrous Mo-oxide on the HCOOH oxidation rate was explained through the facilitated removal of the poisoning species and through its possible influence on the intrinsic rate of the direct reaction path.
PB  - Amer Chemical Soc, Washington
T2  - Langmuir
T1  - High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid
EP  - 12764
IS  - 25
SP  - 12760
VL  - 23
DO  - 10.1021/la702344s
ER  - 

@article{
author = "Gojković, Snežana Lj. and Tripković, Amalija and Stevanović, Rade M. and Krstajić, Nedeljko V.",
year = "2007",
abstract = "Surface processes on Pt4Mo alloy well-defined by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) were studied in acid solution by cyclic voltammetry. It was established that Mo in the alloy is much more resistant toward electrochemical dissolution than pure Mo. During the potential cycling of Pt4Mo surfaces in completely quiescent electrolyte, hydrous Mo-oxide could be generated on Mo sites. Investigation of the formic acid oxidation revealed that this type of Mo-oxide enhances the reaction rate by more than I order of magnitude with respect to pure Pt. Surface poisoning by COads is significantly lower on Pt4Mo alloy than on pure Pt. The effect of hydrous Mo-oxide on the HCOOH oxidation rate was explained through the facilitated removal of the poisoning species and through its possible influence on the intrinsic rate of the direct reaction path.",
publisher = "Amer Chemical Soc, Washington",
journal = "Langmuir",
title = "High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid",
pages = "12764-12760",
number = "25",
volume = "23",
doi = "10.1021/la702344s"
}

Gojković, S. Lj., Tripković, A., Stevanović, R. M.,& Krstajić, N. V.. (2007). High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid. in Langmuir
Amer Chemical Soc, Washington., 23(25), 12760-12764.
https://doi.org/10.1021/la702344s

Gojković SL, Tripković A, Stevanović RM, Krstajić NV. High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid. in Langmuir. 2007;23(25):12760-12764.
doi:10.1021/la702344s .

Gojković, Snežana Lj., Tripković, Amalija, Stevanović, Rade M., Krstajić, Nedeljko V., "High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid" in Langmuir, 23, no. 25 (2007):12760-12764,
https://doi.org/10.1021/la702344s . .

TY  - JOUR
AU  - Popov, K. I.
AU  - Stevanović, Rade M.
PY  - 2000
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5322
AB  - A new approach to the determination of the current distribution in electrochemicalcells, the current line division concept, is introduced. The new concept, based on thebasic equations of electrics and electrochemical kinetics, was employed for a theoreticalexplanation of the phenomenon known in electroforming as  corner weakness . It wasshown that this phenomenon depends on the kind of control of the deposition process,being the largest in the case of pure ohmic control and disappearing in the case of pureactivation control.
AB  - Предложен је нови приступ проблему одређивања расподеле струје у електрохемијским ћелијама, концепт поделе струјних линија. Концепт се базира на основним законима електротехнике и електрохемијске кинетике. И овде је употребљен за теоријско разматрање феномена који је у галванопластици познат као "corner weakness". Показано је да ова појава зависи од врсте контроле катодног процеса. Најизраженија је у условима чисте омске контроле, а изостаје у условима чисте активационе контроле.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - A new current line division concept for the determination of the current distribution in electrochemical cells. Part I. Theoretical background of the  corner weakness  effect in electroforming
T1  - Нов концепт поделе струјних линија за одржавање расподеле струје у електрохемијским ћелијама. Део I.Теоријске основе појаве "Corner weakness" у галванопластици
EP  - 914
IS  - 12
SP  - 905
VL  - 65
DO  - 10.2298/JSC0012905P
ER  - 

@article{
author = "Popov, K. I. and Stevanović, Rade M.",
year = "2000",
abstract = "A new approach to the determination of the current distribution in electrochemicalcells, the current line division concept, is introduced. The new concept, based on thebasic equations of electrics and electrochemical kinetics, was employed for a theoreticalexplanation of the phenomenon known in electroforming as  corner weakness . It wasshown that this phenomenon depends on the kind of control of the deposition process,being the largest in the case of pure ohmic control and disappearing in the case of pureactivation control., Предложен је нови приступ проблему одређивања расподеле струје у електрохемијским ћелијама, концепт поделе струјних линија. Концепт се базира на основним законима електротехнике и електрохемијске кинетике. И овде је употребљен за теоријско разматрање феномена који је у галванопластици познат као "corner weakness". Показано је да ова појава зависи од врсте контроле катодног процеса. Најизраженија је у условима чисте омске контроле, а изостаје у условима чисте активационе контроле.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "A new current line division concept for the determination of the current distribution in electrochemical cells. Part I. Theoretical background of the  corner weakness  effect in electroforming, Нов концепт поделе струјних линија за одржавање расподеле струје у електрохемијским ћелијама. Део I.Теоријске основе појаве "Corner weakness" у галванопластици",
pages = "914-905",
number = "12",
volume = "65",
doi = "10.2298/JSC0012905P"
}

Popov, K. I.,& Stevanović, R. M.. (2000). A new current line division concept for the determination of the current distribution in electrochemical cells. Part I. Theoretical background of the  corner weakness  effect in electroforming. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 65(12), 905-914.
https://doi.org/10.2298/JSC0012905P

Popov KI, Stevanović RM. A new current line division concept for the determination of the current distribution in electrochemical cells. Part I. Theoretical background of the  corner weakness  effect in electroforming. in Journal of the Serbian Chemical Society. 2000;65(12):905-914.
doi:10.2298/JSC0012905P .

Popov, K. I., Stevanović, Rade M., "A new current line division concept for the determination of the current distribution in electrochemical cells. Part I. Theoretical background of the  corner weakness  effect in electroforming" in Journal of the Serbian Chemical Society, 65, no. 12 (2000):905-914,
https://doi.org/10.2298/JSC0012905P . .