Приказ основних података о документу

dc.creatorLović, Jelena
dc.creatorStevanović, Sanja
dc.creatorTripković, Dušan
dc.creatorTripković, Amalija
dc.creatorStevanović, Rade M.
dc.creatorJovanović, Vladislava M.
dc.creatorPopović, Ksenija
dc.date.accessioned2019-01-30T17:43:28Z
dc.date.available2019-01-30T17:43:28Z
dc.date.issued2015
dc.identifier.issn1432-8488
dc.identifier.urihttps://cer.ihtm.bg.ac.rs/handle/123456789/1620
dc.description.abstractFormic acid oxidation was examined on platinum-bismuth deposits on glassy carbon substrate prepared by two-step process, i.e., electrochemical deposition of Bi followed by electrochemical deposition of Pt as described in our previous article (J Electrochem Soc 161:H547-H554, 2014). Upon treatment of as-prepared clusters by slow anodic sweep, bimetallic structure consisting of Bi core occluded by Pt and Bi-oxide was obtained and exhibited significant activity and exceptional stability in HCOOH oxidation. In order to explain such electrocatalytic stability, in this work, the electrochemical properties of Pt"Bi/GC catalyst were investigated applying same protocols in supporting electrolyte with or without HCOOH and compared with Pt/GC. The protocols comprised potentiodynamic, quasi-steady-state, and chronoamperometric measurements combined with the surface characterization by COads stripping voltammetry. Application of potential cycling at Pt"Bi/GC electrode in supporting electrolyte containing HCOOH leads to minor change in surface morphology, mildly leaching of Bi from the electrode surface, and negligible decrease in activity. On the other hand, significant Bi dissolution and considerable decrease in activity are the effects of the same treatment without HCOOH. Contrary to Pt"Bi/GC, Pt/GC electrodes subjected to the same protocols exhibit completely opposite properties being more stabile during potential cycling without HCOOH than in the presence of this acid. Exceptional stability in formic acid oxidation of Pt"Bi/GC catalyst is thus most probably the result of the combination of predominant dehydrogenation path of the reaction, suppressed Bi leaching, and compensation of dissolved Bi from the core as its source due to which surface morphology endured minor changes.en
dc.publisherSpringer, New York
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172060/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Solid State Electrochemistry
dc.subjectFormic acid oxidationen
dc.subjectPt"Bi/GC catalysten
dc.subjectPt/GC catalysten
dc.subjectElectrocatalytic stabilityen
dc.titleInsight into electrocatalytic stability of low loading Pt-Bi/GC and Pt/GC clusters in formic acid oxidationen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractСтевановиц, Р М; Поповић, Ксенија; Трипковић, Душан; Јовановић, Владислава; Ловић, Јелена; Стевановић, Сања; Трипковиц, A В;
dc.citation.volume19
dc.citation.issue8
dc.citation.spage2223
dc.citation.epage2233
dc.citation.other19(8): 2223-2233
dc.citation.rankM22
dc.identifier.doi10.1007/s10008-015-2841-8
dc.identifier.scopus2-s2.0-84938955906
dc.identifier.wos000358546700004
dc.type.versionpublishedVersion


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Приказ основних података о документу