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Oxidation of formic acid on bulk and nanosized Pt-Co alloys
dc.creator | Obradović, Maja | |
dc.creator | Tripković, Amalija | |
dc.creator | Gojković, Snežana Lj. | |
dc.date.accessioned | 2020-05-14T07:22:22Z | |
dc.date.available | 2020-05-14T07:22:22Z | |
dc.date.issued | 2010 | |
dc.identifier.isbn | 978-86-7132-044-3 | |
dc.identifier.uri | http://www.aseee.eu/index.php/rsesee2-home | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/3537 | |
dc.description.abstract | Bulk Pt3Co and nanosized Pt3Co and PtCo alloys supported on XC-72 high area carbon were investigated as the electrocatalysts for the oxidation of formic acid. Cyclic voltammetry in 0.1 M HClO4 and stripping voltammetry of COads in the same electrolyte show a small difference in the potentials of Pt-oxide formation and reduction and COads oxidation. Based on these results, we concluded that electronic modification of Pt by Co atoms, which was theoretically predicted and experimentally proved on solid/gas interface, is exhibited in the electrochemical environment. Promotion of HCOOH oxidation rate on bimetallic Pt-Co surfaces with respect to pure Pt was found to be up to factor of eight in the case of PtCo/XC-72 catalyst. This moderate increase of the reaction rate is ascribed mostly to the ensemble effect, because partial leaching of Co increased Pt:Co ratio at the bimetallic surfaces, diminishing the efficiency of the ensemble effect. | en |
dc.language.iso | en | sr |
dc.publisher | Serbian Chemical Society, Belgrade | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings | sr |
dc.subject | Cyclic voltammetry | sr |
dc.subject | Formic acid | sr |
dc.subject | Oxidation | sr |
dc.title | Oxidation of formic acid on bulk and nanosized Pt-Co alloys | en |
dc.type | conferenceObject | sr |
dc.rights.license | BY | sr |
dcterms.abstract | Обрадовић, Маја; Трипковић, Aмалија; Гојковић, Снежана; | |
dc.citation.spage | 112 | |
dc.citation.epage | 115 | |
dc.description.other | Belgrade, Serbia, June 6-10, 2010 | sr |
dc.description.other | Related to the [http://cer.ihtm.bg.ac.rs/handle/123456789/3536] | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_cer_3537 | |
dc.identifier.fulltext | https://cer.ihtm.bg.ac.rs/bitstream/id/16497/rSE_SEE_3_proc.pdf | |
dc.type.version | publishedVersion | sr |