Journal Article
No Thumbnail Available
License
CC-BYCC-BY - Attribution
 

Electrochemical Behavior of a Pd Thin Film Electrode in Concentrated Alkaline Media

Simple item page
cris.lastimport.scopus2024-02-12T19:47:27Z
dc.abstract.enPd limited volume electrodes (LVE) were obtained electrochemically from the PdCl2 aqueous solution. Hydrogen absorption was performed using cyclic voltammetry and chronoamperometry in concentrated (6 M) alkaline solutions (KOH, NaOH, the mixture of 2M LiOH + 4M KOH) and results were compared with 0.5 M H2SO4. It was found that hydrogen pretreatment procedure is crucial for further examination of hydrogen absorption in Pd electrodes. After many cycles of hydrogen absorption/desorption in Pd, these processes become electrochemically more reversible—faster than in a freshly prepared electrode. Results obtained for Pd electrodes in different concentrated alkaline media subjected to hydrogen pretreatment procedure are comparable with those for an acidic solution (e.g., α→β phase transition potential equals to ca. 0.050 V vs. RHE). The continuous Pd electrode cycling does not affect significantly the amount of absorbed hydrogen (ca. 0.72–0.74). The surface roughness factor in basic solutions decreases after multiple hydrogen sorption as in case of an acidic solution.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorSymonowicz, Michał
dc.contributor.authorŁukaszewski, M.
dc.contributor.authorSoszko, Michał
dc.contributor.authorCzerwiński, Andrzej
dc.contributor.authorHubkowska-Kosińska, Katarzyna
dc.date.accessioned2024-01-24T22:33:11Z
dc.date.available2024-01-24T22:33:11Z
dc.date.copyright2017-04-22
dc.date.issued2017
dc.description.accesstimeAT_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number4
dc.description.versionFINAL_PUBLISHED
dc.description.volume8
dc.identifier.doi10.1007/S12678-017-0379-5
dc.identifier.issn1868-2529
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/105973
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofElectrocatalysis
dc.relation.pages295-300
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.enAlkaline solutions
dc.subject.enHydrogen pretreatment procedure
dc.subject.enHydrogen sorption
dc.subject.enPd limited volume electrode
dc.subject.enα↔β phase transition potential
dc.titleElectrochemical Behavior of a Pd Thin Film Electrode in Concentrated Alkaline Media
dc.typeJournalArticle
dspace.entity.typePublication