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Improved hydrogen sorption properties of Pd in protic and aprotic ionic liquids effected by superacid addition

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dc.abstract.enThe mixtures of selected protic and aprotic ionic liquids with their parent superacids were used as electrolytes in the process of hydrogen electrosorption in thin (ca. 0.5 µm) Pd films. The properties of ionic liquids and their mixtures with superacids were characterized with the use of electrochemical and physicochemical methods to show the perspectives of their potential utilization as electrolytes in hydride/protonic systems. Based on the electrochemical studies it was possible to estimate the minimum concentrations of the superacids in protic and aprotic ionic liquids which give maximum hydrogen absorption capacities in Pd (H/Pd). Unusual, previously unnoticed ‘two-step’ α→β phase transition was observed on the hydrogen electrosorption isotherm of Pd for the process of hydrogen absorption from the protic ionic liquids for some superacid concentrations. 1H NMR spectroscopy of the protic ionic liquids enables to discuss the relation between proton mobility and hydrogen electrosorption properties.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorCzerwiński, Andrzej
dc.contributor.authorHubkowska-Kosińska, Katarzyna
dc.contributor.authorPająk, Małgorzata
dc.date.accessioned2024-01-25T03:58:47Z
dc.date.available2024-01-25T03:58:47Z
dc.date.copyright2022-01-20
dc.date.issued2022
dc.description.accesstimeAT_PUBLICATION
dc.description.financeŚrodki finansowe, o których mowa w art. 365 pkt. 2 ustawy
dc.description.versionFINAL_PUBLISHED
dc.description.volume903
dc.identifier.doi10.1016/J.JALLCOM.2022.163853
dc.identifier.issn0925-8388
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/109103
dc.identifier.weblinkhttps://api.elsevier.com/content/article/PII:S0925838822002444?httpAccept=text/xml
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofJournal of Alloys and Compounds
dc.relation.pages163853
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.enHydrogen absorption isotherm
dc.subject.enHydrogen sorption
dc.subject.enIonic liquids
dc.subject.enIonic liquids 1H NMR
dc.subject.enNon-aqueous electrolytes
dc.subject.enPalladium
dc.titleImproved hydrogen sorption properties of Pd in protic and aprotic ionic liquids effected by superacid addition
dc.typeJournalArticle
dspace.entity.typePublication