TY  - JOUR
AU  - Adžić, Radoslav R.
AU  - Tripković, Amalija
AU  - Vešović, V. B.
PY  - 1986
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4191
AB  - The oxidation of formic acid and hydrogen adsorption have been measured on platinum single-crystal stepped surfaces with five orientations. A pronounced structural sensitivity of both reactions has been found. They show a sensitivity to the terrace orientation, the density of steps and to the step orientation The surfaces which are blocked for reaction by intermediates formed in the oxidation of formic acid, as the Pt(100) and Pt(110) surfaces are, become more active upon introduction of steps. The surface which are not blocked, i.e. the Pt(111) surface, become less active upon introduction of steps because more active steps increase their activity for the "wrong" reaction - the formation of blocking intermediates. Preliminary data on hydrogen adsorption show the possibility of using this reaction as a check of the degree of order and orientation of sigle-crystal Pt surfaces.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Structural effects in electrocatalysis: oxidation of formic acid and hydrogen adsorption on platinum single-crystal stepped surfaces
VL  - 204
IS  - 1-2
SP  - 329
EP  - 341
DO  - 10.1016/0022-0728(86)80530-7
ER  - 

@article{
author = "Adžić, Radoslav R. and Tripković, Amalija and Vešović, V. B.",
year = "1986",
abstract = "The oxidation of formic acid and hydrogen adsorption have been measured on platinum single-crystal stepped surfaces with five orientations. A pronounced structural sensitivity of both reactions has been found. They show a sensitivity to the terrace orientation, the density of steps and to the step orientation The surfaces which are blocked for reaction by intermediates formed in the oxidation of formic acid, as the Pt(100) and Pt(110) surfaces are, become more active upon introduction of steps. The surface which are not blocked, i.e. the Pt(111) surface, become less active upon introduction of steps because more active steps increase their activity for the "wrong" reaction - the formation of blocking intermediates. Preliminary data on hydrogen adsorption show the possibility of using this reaction as a check of the degree of order and orientation of sigle-crystal Pt surfaces.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Structural effects in electrocatalysis: oxidation of formic acid and hydrogen adsorption on platinum single-crystal stepped surfaces",
volume = "204",
number = "1-2",
pages = "329-341",
doi = "10.1016/0022-0728(86)80530-7"
}

Adžić, R. R., Tripković, A.,& Vešović, V. B.. (1986). Structural effects in electrocatalysis: oxidation of formic acid and hydrogen adsorption on platinum single-crystal stepped surfaces. in Journal of Electroanalytical Chemistry
Elsevier., 204(1-2), 329-341.
https://doi.org/10.1016/0022-0728(86)80530-7

Adžić RR, Tripković A, Vešović VB. Structural effects in electrocatalysis: oxidation of formic acid and hydrogen adsorption on platinum single-crystal stepped surfaces. in Journal of Electroanalytical Chemistry. 1986;204(1-2):329-341.
doi:10.1016/0022-0728(86)80530-7 .

Adžić, Radoslav R., Tripković, Amalija, Vešović, V. B., "Structural effects in electrocatalysis: oxidation of formic acid and hydrogen adsorption on platinum single-crystal stepped surfaces" in Journal of Electroanalytical Chemistry, 204, no. 1-2 (1986):329-341,
https://doi.org/10.1016/0022-0728(86)80530-7 . .

TY  - JOUR
AU  - Anastasijević, Nikola A.
AU  - Dimitrijević, Z. M.
AU  - Adžić, Radoslav R.
PY  - 1986
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4200
AB  - The kinetics of oxygen reduction have been studied on a ruthenium electrode in alkaline solutions using the rotating disc and rotating disc-ring methods. The reaction kinetics and mechanism were found to depend on the oxidation state of the ruthenium surface. For a surface having up to two monolayers of oxide a "parallel" mechanism of O2 reduction has been found, which goes predominantly through a four-electron direct reduction to OH-. All the rate constants of the O2 and HO-2 reactions, including those of the adsorption equilibrium of HO-2 on the Ru surface, have been determined. No catalytic decomposition of HO-2 was found. Although the Tafel slope is higher than -120 mV/dec it appears that an initial electron exchange is the rate-determining step. The kinetics are slower on a Ru surface with a thicker oxide layer. The mechanism of the reaction is also different, showing a potential-dependent ratio of the rate constants for a direct and series reduction of O2 and a catalytic decomposition of HO-2.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Oxygen reduction on a ruthenium electrode in alkaline electrolytes
VL  - 199
IS  - 2
SP  - 351
EP  - 364
DO  - 10.1016/0022-0728(86)80009-2
ER  - 

@article{
author = "Anastasijević, Nikola A. and Dimitrijević, Z. M. and Adžić, Radoslav R.",
year = "1986",
abstract = "The kinetics of oxygen reduction have been studied on a ruthenium electrode in alkaline solutions using the rotating disc and rotating disc-ring methods. The reaction kinetics and mechanism were found to depend on the oxidation state of the ruthenium surface. For a surface having up to two monolayers of oxide a "parallel" mechanism of O2 reduction has been found, which goes predominantly through a four-electron direct reduction to OH-. All the rate constants of the O2 and HO-2 reactions, including those of the adsorption equilibrium of HO-2 on the Ru surface, have been determined. No catalytic decomposition of HO-2 was found. Although the Tafel slope is higher than -120 mV/dec it appears that an initial electron exchange is the rate-determining step. The kinetics are slower on a Ru surface with a thicker oxide layer. The mechanism of the reaction is also different, showing a potential-dependent ratio of the rate constants for a direct and series reduction of O2 and a catalytic decomposition of HO-2.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Oxygen reduction on a ruthenium electrode in alkaline electrolytes",
volume = "199",
number = "2",
pages = "351-364",
doi = "10.1016/0022-0728(86)80009-2"
}

Anastasijević, N. A., Dimitrijević, Z. M.,& Adžić, R. R.. (1986). Oxygen reduction on a ruthenium electrode in alkaline electrolytes. in Journal of Electroanalytical Chemistry
Elsevier., 199(2), 351-364.
https://doi.org/10.1016/0022-0728(86)80009-2

Anastasijević NA, Dimitrijević ZM, Adžić RR. Oxygen reduction on a ruthenium electrode in alkaline electrolytes. in Journal of Electroanalytical Chemistry. 1986;199(2):351-364.
doi:10.1016/0022-0728(86)80009-2 .

Anastasijević, Nikola A., Dimitrijević, Z. M., Adžić, Radoslav R., "Oxygen reduction on a ruthenium electrode in alkaline electrolytes" in Journal of Electroanalytical Chemistry, 199, no. 2 (1986):351-364,
https://doi.org/10.1016/0022-0728(86)80009-2 . .