TY  - JOUR
AU  - Jaksić, MM
AU  - Lačnjevac, Časlav
AU  - Grgur, Branimir
AU  - Krstajić, Nedeljko V.
PY  - 2000
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/277
AB  - The nature, causes and consequences of the existence of volcano plots along transition series with resulting theoretical conclusions have been extended on the Brewer hypo-hyper-d-electronic combinations of transition metal intermetallic phases. There has been pointed out that every such phase diagram behaves as the part of Periodic Table between two initial constituents, and thereby features the Gschneidner type volcano plots for the hydrogen electrode reactions (heir), in common with well known electrocatalytic volcano curves of H. Kita and M.H. Miles for the hydrogen evolution reaction (her) upon individual transition metals. Several typical Brewer intermetallic systems (Ti-Ni, Zr-Ni, Mo-Ni) were investigated and their comparable hydridic and electrocatalytic properties became revealed from volcanic plots along corresponding phase diagrams. In the light of such conclusions, there has been pointed out that catalytic volcano plots represent in their essence the main criterion and guidance leading to both optimal and synergetic electrocatalytic effects and (electro)catalysts for the heir of broader application in both industrial. electrolytic and catalytic processes and mobile fuel cells for hydrogen powered cars. As the consequence of the present theory, the paper has been used for the promotion of so called Tiney-Ni, as the counterpart of more common Raney-Ni catalyst and its advanced electrocatalytic and hydridic properties were illustrated and pointed out in the light of hypo-hyper-d-electronic features of composite Braver type intermetallic phases.
T2  - Journal of New Materials for Electrochemical Systems
T1  - Volcano plots along intermetallic hypo-hyper-d-electronic phase diagrams and electrocatalysis for hydrogen electrode reactions
EP  - 182
IS  - 2
SP  - 169
VL  - 3
UR  - https://hdl.handle.net/21.15107/rcub_technorep_277
ER  - 

@article{
author = "Jaksić, MM and Lačnjevac, Časlav and Grgur, Branimir and Krstajić, Nedeljko V.",
year = "2000",
abstract = "The nature, causes and consequences of the existence of volcano plots along transition series with resulting theoretical conclusions have been extended on the Brewer hypo-hyper-d-electronic combinations of transition metal intermetallic phases. There has been pointed out that every such phase diagram behaves as the part of Periodic Table between two initial constituents, and thereby features the Gschneidner type volcano plots for the hydrogen electrode reactions (heir), in common with well known electrocatalytic volcano curves of H. Kita and M.H. Miles for the hydrogen evolution reaction (her) upon individual transition metals. Several typical Brewer intermetallic systems (Ti-Ni, Zr-Ni, Mo-Ni) were investigated and their comparable hydridic and electrocatalytic properties became revealed from volcanic plots along corresponding phase diagrams. In the light of such conclusions, there has been pointed out that catalytic volcano plots represent in their essence the main criterion and guidance leading to both optimal and synergetic electrocatalytic effects and (electro)catalysts for the heir of broader application in both industrial. electrolytic and catalytic processes and mobile fuel cells for hydrogen powered cars. As the consequence of the present theory, the paper has been used for the promotion of so called Tiney-Ni, as the counterpart of more common Raney-Ni catalyst and its advanced electrocatalytic and hydridic properties were illustrated and pointed out in the light of hypo-hyper-d-electronic features of composite Braver type intermetallic phases.",
journal = "Journal of New Materials for Electrochemical Systems",
title = "Volcano plots along intermetallic hypo-hyper-d-electronic phase diagrams and electrocatalysis for hydrogen electrode reactions",
pages = "182-169",
number = "2",
volume = "3",
url = "https://hdl.handle.net/21.15107/rcub_technorep_277"
}

Jaksić, M., Lačnjevac, Č., Grgur, B.,& Krstajić, N. V.. (2000). Volcano plots along intermetallic hypo-hyper-d-electronic phase diagrams and electrocatalysis for hydrogen electrode reactions. in Journal of New Materials for Electrochemical Systems, 3(2), 169-182.
https://hdl.handle.net/21.15107/rcub_technorep_277

Jaksić M, Lačnjevac Č, Grgur B, Krstajić NV. Volcano plots along intermetallic hypo-hyper-d-electronic phase diagrams and electrocatalysis for hydrogen electrode reactions. in Journal of New Materials for Electrochemical Systems. 2000;3(2):169-182.
https://hdl.handle.net/21.15107/rcub_technorep_277 .

Jaksić, MM, Lačnjevac, Časlav, Grgur, Branimir, Krstajić, Nedeljko V., "Volcano plots along intermetallic hypo-hyper-d-electronic phase diagrams and electrocatalysis for hydrogen electrode reactions" in Journal of New Materials for Electrochemical Systems, 3, no. 2 (2000):169-182,
https://hdl.handle.net/21.15107/rcub_technorep_277 .

TY  - JOUR
AU  - Jakšić, Jelena M.
AU  - Krstajić, Nedeljko V.
AU  - Grgur, Branimir
AU  - Jaksić, MM
PY  - 1998
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/174
AB  - Hydridic and electrocatalytic properties of hypo-hyper-d-electronic combinations of transition metals in their intermetallic phases and alloys for the hydrogen storage, hydridic batteries and its electrode reactions (HELR) have been considered in the light of Fermi dynamics (or the electronic density of states), work function and the Brewer or Miedema intermetallic bonding theory (structural factors). It has been pointed out that such an intermetallic hypo-hyper-d-electronic interaction of transition metals (or the doped effect of a hyper-d- upon the bulk or surface of a hypo-d-electronic metal, or vice versa), which leads to the defined optimal mutual (bulk or surface) electronic density of states for both hydridic storage and/or electrocatalytic reaction (cathodic evolution (HER) and/or anodic oxidation (HOR) of hydrogen), imposes the same catalytic effect as the Non-Faradaic promotion by induced polarization, or the so-called NEMCA effect (Non-Faradaic Electrochemical Modification of Catalytic Activity). The main impact has been imposed on the most promising hydridic battery system (Ti-Ni, crystalline and sintered), as well as on typical electrocatalytic issues (Mo-Co, Mo-Ni, Zr-Ni). It has also been inferred that each phase diagram of a hypo-hyper-d-electronic combination of transition metals behaves in both the hydridic and electrocatalytic sense as the part of Periodic Table: intermetallic phases and alloys between two pure constituents obey typical volcano plots for both hydridic and catalytic activity in accordance with the changes in their electronic density of states and well-defined crystal structure, thereby resulting in intermetallic bonding effectiveness and a mutual work function.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Hydrogen Energy
T1  - Hydridic and electrocatalytic properties of hypo-hyper-d-electronic combinations of transition metal intermetallic phases
EP  - 681
IS  - 8
SP  - 667
VL  - 23
DO  - 10.1016/s0360-3199(97)00091-8
ER  - 

@article{
author = "Jakšić, Jelena M. and Krstajić, Nedeljko V. and Grgur, Branimir and Jaksić, MM",
year = "1998",
abstract = "Hydridic and electrocatalytic properties of hypo-hyper-d-electronic combinations of transition metals in their intermetallic phases and alloys for the hydrogen storage, hydridic batteries and its electrode reactions (HELR) have been considered in the light of Fermi dynamics (or the electronic density of states), work function and the Brewer or Miedema intermetallic bonding theory (structural factors). It has been pointed out that such an intermetallic hypo-hyper-d-electronic interaction of transition metals (or the doped effect of a hyper-d- upon the bulk or surface of a hypo-d-electronic metal, or vice versa), which leads to the defined optimal mutual (bulk or surface) electronic density of states for both hydridic storage and/or electrocatalytic reaction (cathodic evolution (HER) and/or anodic oxidation (HOR) of hydrogen), imposes the same catalytic effect as the Non-Faradaic promotion by induced polarization, or the so-called NEMCA effect (Non-Faradaic Electrochemical Modification of Catalytic Activity). The main impact has been imposed on the most promising hydridic battery system (Ti-Ni, crystalline and sintered), as well as on typical electrocatalytic issues (Mo-Co, Mo-Ni, Zr-Ni). It has also been inferred that each phase diagram of a hypo-hyper-d-electronic combination of transition metals behaves in both the hydridic and electrocatalytic sense as the part of Periodic Table: intermetallic phases and alloys between two pure constituents obey typical volcano plots for both hydridic and catalytic activity in accordance with the changes in their electronic density of states and well-defined crystal structure, thereby resulting in intermetallic bonding effectiveness and a mutual work function.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Hydrogen Energy",
title = "Hydridic and electrocatalytic properties of hypo-hyper-d-electronic combinations of transition metal intermetallic phases",
pages = "681-667",
number = "8",
volume = "23",
doi = "10.1016/s0360-3199(97)00091-8"
}

Jakšić, J. M., Krstajić, N. V., Grgur, B.,& Jaksić, M.. (1998). Hydridic and electrocatalytic properties of hypo-hyper-d-electronic combinations of transition metal intermetallic phases. in International Journal of Hydrogen Energy
Pergamon-Elsevier Science Ltd, Oxford., 23(8), 667-681.
https://doi.org/10.1016/s0360-3199(97)00091-8

Jakšić JM, Krstajić NV, Grgur B, Jaksić M. Hydridic and electrocatalytic properties of hypo-hyper-d-electronic combinations of transition metal intermetallic phases. in International Journal of Hydrogen Energy. 1998;23(8):667-681.
doi:10.1016/s0360-3199(97)00091-8 .

Jakšić, Jelena M., Krstajić, Nedeljko V., Grgur, Branimir, Jaksić, MM, "Hydridic and electrocatalytic properties of hypo-hyper-d-electronic combinations of transition metal intermetallic phases" in International Journal of Hydrogen Energy, 23, no. 8 (1998):667-681,
https://doi.org/10.1016/s0360-3199(97)00091-8 . .

TY  - JOUR
AU  - Krstajić, Nedeljko V.
AU  - Grgur, Branimir
AU  - Mladenović, NS
AU  - Vojnović, MV
AU  - Jaksić, MM
PY  - 1997
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/120
AB  - The kinetics and mechanism of hydrogen evolution at Ti-Ni alloys electrode has been studied by means of steady-state potentiostatic polarization and ac impedance spectrum measurements. Complex-plane spectrum plots are derived for the h.e.r. at one of the most inactive, typical hydridic, Ti-Ni, and one of the most active, typical electrocatalytic, Ti-Ni-3, intermetallic alloy compounds at various potentials. The rate constants of the forward and backward reactions of the corresponding steps were estimated by a nonlinear fitting method. It has been found that the overall reaction proceeds through a coupled Volmer-Heyrovsky mechanism. The electrocatalytic activity decreases in the order TiNi2  gt  TiNi3  gt  TiNi4  gt  Ti2Ni  gt  TiNi  gt  Ti3Ni  gt  TiNi0.7.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - The determination of kinetics parameters of the hydrogen evolution on Ti-Ni alloys by ac impedance
EP  - 330
IS  - 2
SP  - 323
VL  - 42
DO  - 10.1016/0013-4686(96)00188-0
ER  - 

@article{
author = "Krstajić, Nedeljko V. and Grgur, Branimir and Mladenović, NS and Vojnović, MV and Jaksić, MM",
year = "1997",
abstract = "The kinetics and mechanism of hydrogen evolution at Ti-Ni alloys electrode has been studied by means of steady-state potentiostatic polarization and ac impedance spectrum measurements. Complex-plane spectrum plots are derived for the h.e.r. at one of the most inactive, typical hydridic, Ti-Ni, and one of the most active, typical electrocatalytic, Ti-Ni-3, intermetallic alloy compounds at various potentials. The rate constants of the forward and backward reactions of the corresponding steps were estimated by a nonlinear fitting method. It has been found that the overall reaction proceeds through a coupled Volmer-Heyrovsky mechanism. The electrocatalytic activity decreases in the order TiNi2  gt  TiNi3  gt  TiNi4  gt  Ti2Ni  gt  TiNi  gt  Ti3Ni  gt  TiNi0.7.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "The determination of kinetics parameters of the hydrogen evolution on Ti-Ni alloys by ac impedance",
pages = "330-323",
number = "2",
volume = "42",
doi = "10.1016/0013-4686(96)00188-0"
}

Krstajić, N. V., Grgur, B., Mladenović, N., Vojnović, M.,& Jaksić, M.. (1997). The determination of kinetics parameters of the hydrogen evolution on Ti-Ni alloys by ac impedance. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 42(2), 323-330.
https://doi.org/10.1016/0013-4686(96)00188-0

Krstajić NV, Grgur B, Mladenović N, Vojnović M, Jaksić M. The determination of kinetics parameters of the hydrogen evolution on Ti-Ni alloys by ac impedance. in Electrochimica Acta. 1997;42(2):323-330.
doi:10.1016/0013-4686(96)00188-0 .

Krstajić, Nedeljko V., Grgur, Branimir, Mladenović, NS, Vojnović, MV, Jaksić, MM, "The determination of kinetics parameters of the hydrogen evolution on Ti-Ni alloys by ac impedance" in Electrochimica Acta, 42, no. 2 (1997):323-330,
https://doi.org/10.1016/0013-4686(96)00188-0 . .

TY  - JOUR
AU  - Krstajić, Nedeljko V.
AU  - Grgur, Branimir
AU  - Zdujić, Miodrag
AU  - Vojnović, MV
AU  - Jaksić, MM
PY  - 1997
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/138
AB  - The kinetics and mechanism of hydrogen evolution at Ti-Ni alloy electrodes prepared by are-melting and mechanical alloying methods has been studied by means of AC impedance spectrum measurements. The electrode, prepared by mechanical alloying (porous electrode), after activation in a 10% HF solution, is very active despite its large Tafel slope. The SEM studies show a formation of deep pores on the electrode surface. The rate constants of the forward and backward reactions of the corresponding steps were estimated by a nonlinear fitting method. It has been found that the overall reaction proceeds through a Volmer-Heyrovsky mechanism.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Kinetic properties of the Ti-Ni intermetallic phases and alloys for hydrogen evolution
EP  - 252
IS  - 1-2
SP  - 245
VL  - 257
DO  - 10.1016/S0925-8388(97)00018-2
ER  - 

@article{
author = "Krstajić, Nedeljko V. and Grgur, Branimir and Zdujić, Miodrag and Vojnović, MV and Jaksić, MM",
year = "1997",
abstract = "The kinetics and mechanism of hydrogen evolution at Ti-Ni alloy electrodes prepared by are-melting and mechanical alloying methods has been studied by means of AC impedance spectrum measurements. The electrode, prepared by mechanical alloying (porous electrode), after activation in a 10% HF solution, is very active despite its large Tafel slope. The SEM studies show a formation of deep pores on the electrode surface. The rate constants of the forward and backward reactions of the corresponding steps were estimated by a nonlinear fitting method. It has been found that the overall reaction proceeds through a Volmer-Heyrovsky mechanism.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Kinetic properties of the Ti-Ni intermetallic phases and alloys for hydrogen evolution",
pages = "252-245",
number = "1-2",
volume = "257",
doi = "10.1016/S0925-8388(97)00018-2"
}

Krstajić, N. V., Grgur, B., Zdujić, M., Vojnović, M.,& Jaksić, M.. (1997). Kinetic properties of the Ti-Ni intermetallic phases and alloys for hydrogen evolution. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 257(1-2), 245-252.
https://doi.org/10.1016/S0925-8388(97)00018-2

Krstajić NV, Grgur B, Zdujić M, Vojnović M, Jaksić M. Kinetic properties of the Ti-Ni intermetallic phases and alloys for hydrogen evolution. in Journal of Alloys and Compounds. 1997;257(1-2):245-252.
doi:10.1016/S0925-8388(97)00018-2 .

Krstajić, Nedeljko V., Grgur, Branimir, Zdujić, Miodrag, Vojnović, MV, Jaksić, MM, "Kinetic properties of the Ti-Ni intermetallic phases and alloys for hydrogen evolution" in Journal of Alloys and Compounds, 257, no. 1-2 (1997):245-252,
https://doi.org/10.1016/S0925-8388(97)00018-2 . .