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The Modification of Electrochemical Properties of Pd by its Alloying with Ru, Rh, and Pt: the Study of Ternary Systems

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dc.abstract.enPd-rich Pd-Pt-Ru alloys, obtained by electrodeposition, were characterized by microscopic and electrochemical techniques at room temperature (298 K). The influence of the electrode potential and bulk composition on the amount of electrosorbed hydrogen was studied in 0.5 M H2SO4 aqueous solutions and compared with the behavior of Pd-Rh-Ru alloys under identical experimental conditions. The maximum hydrogen absorption capacities gradually decreased with increasing total amounts of both Pt and Ru in the alloy bulk. The effects of both Pd bulk content and the relative proportions between other components in Pd-Pt-Ru and Pd-Rh-Ru electrodes are also responsible for the changes in maximum hydrogen absorption capacity, the decrease in the potential of the alpha-beta phase transition, and the decrease in the absorption/desorption hysteresis. During voltammetric cycling in 0.5 M H2SO4 in the potential range − 0.1÷1.5 V vs. RHE (scan rate 0.1 V/s), the freshly obtained deposits became enriche d with Pt due to electrodissolution of Ru and Pd, and the electrode morphology was also altered due to hydrogen electrosorption and surface oxidation.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorHubkowska-Kosińska, Katarzyna
dc.contributor.authorŁukaszewski, Mariusz
dc.contributor.authorCzerwiński, Andrzej
dc.contributor.authorThemsirimongkon, Suwaphid
dc.contributor.authorSaipanya, Surin
dc.date.accessioned2024-01-26T10:27:55Z
dc.date.available2024-01-26T10:27:55Z
dc.date.issued2020
dc.description.financePublikacja bezkosztowa
dc.description.number2
dc.description.volume11
dc.identifier.doi10.1007/S12678-019-00579-6
dc.identifier.issn1868-2529
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/122697
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofElectrocatalysis
dc.relation.pages247-257
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enHydrogen absorption and adsorption
dc.subject.enPd-Pt-Ru alloys
dc.subject.enPd-Rh-Ru alloys
dc.subject.enThin layers
dc.subject.enElectrodeposition
dc.subject.enCyclic voltammetry (CV)
dc.titleThe Modification of Electrochemical Properties of Pd by its Alloying with Ru, Rh, and Pt: the Study of Ternary Systems
dc.typeJournalArticle
dspace.entity.typePublication