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dc.creatorObradović, Maja
dc.creatorGrgur, Branimir N.
dc.creatorVracar, LM
dc.date.accessioned2019-01-30T17:13:00Z
dc.date.available2019-01-30T17:13:00Z
dc.date.issued2005
dc.identifier.issn0255-5476
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/191
dc.description.abstractUnderpotential deposition of nickel and hydrogen on polycrystalline platinum in weak acid and neutral solutions (3.5 LT = pH LT = 7.0), with and without Ni2+-ions, has been examined using cyclic voltammetric technique in the range of temperature from 274 to 313 K. The nickel and hydrogen ad-atom surface coverages were calculated from the voltammetric adsorption and desorption charges. The Temkin isotherm was fitted for both underpotential depositions, and thermodynamic adsorption parameters were calculated for both atoms. The value of the bonding energy between hydrogen and surface in the presence of underpotentially deposited nickel was calculated and found to amount to 287 kJ mol(-1), which is 40 kJ mol(-1) stronger bond than the same of pure platinum. The presence of nickel on the surface facilitates interfacial transfer of hydrogen into the metal bulk and consequent hydride formation significant in design of hydrogen based fuel cells.en
dc.publisherTrans Tech Publications Ltd, Durnten-Zurich
dc.rightsrestrictedAccess
dc.sourceCurrent Research in Advanced Materials and Processes
dc.subjectadsorption parametersen
dc.subjectnickel and hydrogen underpotential depositionen
dc.subjectpolycrystalline platinumen
dc.titleComparative potentiodynamic study of nickel and hydrogen underpotential deposition at polycrystalline platinum electrode in weak acid and neutral solutionsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractОбрадовић, Маја; Врацар, ЛМ; Гргур, Бранимир Н.;
dc.citation.volume494
dc.citation.spage241
dc.citation.epage246
dc.citation.other494: 241-246
dc.citation.rankM23
dc.identifier.doi10.4028/www.scientific.net/MSF.494.241
dc.identifier.rcubConv_2322
dc.identifier.scopus2-s2.0-33749611872
dc.identifier.wos000230985800040
dc.type.versionpublishedVersion


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