dc.creator | Adžić, Radoslav R. | |
dc.creator | Marković, Nenad M. | |
dc.creator | Vešović, V. B. | |
dc.date.accessioned | 2021-02-09T09:46:01Z | |
dc.date.available | 2021-02-09T09:46:01Z | |
dc.date.issued | 1984 | |
dc.identifier.issn | 0022-0728 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/4214 | |
dc.description.abstract | The kinetics of O2 reduction on the Au (100) single crystal electrode have been examined in alkaline electrolytes using the rotating dise method. A comparison has been made with the Au (110) and Au (111) surfaces. The quality of the surfaces has been determined by Auger electron spectroscopy and LEED. A pronounced effect of the crystallographic orientation on the kinetics and mechanism of O2 reduction has been found. The half-wave potential for the Au (100) face is the most positive. O2 reduction, only on this surface, proceeds with the exchange of four electrons in a "series" pathway in the potential region of AuOH formation. The cathodic and anodic kinetic data for the O2/HO2- and HO2-/OH- couples support the mechanism O2+e-→ O2- (ads) 2 O2- (ads)+H2O HO2-+O2+OH- Further reduction of HO2- is controlled by an initial one-electron transfer: HO2-+e-+H2O→ 2 OH-+OH(ads) OH(ads)+e- OH- The OH species adsorbed on the Au (100) face appears considerably discharged. Such a surface apparently interacts more strongly with O2, O2- and HO2-, and is probably the origin of the high activity of the Au (100) face for O2 and HO2- reduction. | sr |
dc.language.iso | en | sr |
dc.publisher | Elsevier | sr |
dc.relation | The Research Fund of Serbia, Yugoslavia, Serbian Academy of Sciences and Arts | sr |
dc.relation | The Department of Energy, Washington, U.S.A., Contract Energy 42 | sr |
dc.rights | restrictedAccess | sr |
dc.source | Journal of Electroanalytical Chemistry | sr |
dc.subject | catalysis | sr |
dc.subject | crystallography | sr |
dc.subject | electrochemistry | sr |
dc.subject | electrodes - gold | sr |
dc.subject | oxygen | sr |
dc.subject | O2 reduction | sr |
dc.subject | single crystal electrode | sr |
dc.title | Structural effects in electrocatalysis. Oxygen reduction on the Au (100) single crystal electrode | sr |
dc.type | article | sr |
dc.rights.license | ARR | sr |
dcterms.abstract | Марковић, Ненад М.; Вешовић, В. Б.; Aджић, Радослав Р.; | |
dc.citation.volume | 165 | |
dc.citation.issue | 1-2 | |
dc.citation.spage | 105 | |
dc.citation.epage | 120 | |
dc.identifier.doi | 10.1016/S0022-0728(84)80090-X | |
dc.identifier.scopus | 2-s2.0-0021422374 | |
dc.type.version | publishedVersion | sr |