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dc.creatorAdžić, Radoslav R.
dc.creatorMarković, Nenad M.
dc.creatorVešović, V. B.
dc.date.accessioned2021-02-09T09:46:01Z
dc.date.available2021-02-09T09:46:01Z
dc.date.issued1984
dc.identifier.issn0022-0728
dc.identifier.urihttps://cer.ihtm.bg.ac.rs/handle/123456789/4214
dc.description.abstractThe 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.isoensr
dc.publisherElseviersr
dc.relationThe Research Fund of Serbia, Yugoslavia, Serbian Academy of Sciences and Artssr
dc.relationThe Department of Energy, Washington, U.S.A., Contract Energy 42sr
dc.rightsrestrictedAccesssr
dc.sourceJournal of Electroanalytical Chemistrysr
dc.subjectcatalysissr
dc.subjectcrystallographysr
dc.subjectelectrochemistrysr
dc.subjectelectrodes - goldsr
dc.subjectoxygensr
dc.subjectO2 reductionsr
dc.subjectsingle crystal electrodesr
dc.titleStructural effects in electrocatalysis. Oxygen reduction on the Au (100) single crystal electrodesr
dc.typearticlesr
dc.rights.licenseARRsr
dcterms.abstractМарковић, Ненад М.; Вешовић, В. Б.; Aджић, Радослав Р.;
dc.citation.volume165
dc.citation.issue1-2
dc.citation.spage105
dc.citation.epage120
dc.identifier.doi10.1016/S0022-0728(84)80090-X
dc.identifier.scopus2-s2.0-0021422374
dc.type.versionpublishedVersionsr


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