Artykuł w czasopiśmie
Brak miniatury
Licencja
ClosedAccessDostęp zamknięty
 

Hybrid Electrocatalysts Composed of PtSn, Ru or PtRu Nanoparticles for Low-Temperature Oxidation of Dimethyl Ether Fuel

Uproszczony widok
cris.lastimport.scopus2024-02-12T20:40:05Z
dc.abstract.enElectrocatalytic activity of Vulcan-supported PtSn (PtSn/C) nanostructured alloys toward electrooxidation of dimethyl ether (DME), a potential small-organic-molecule fuel, has been significantly enhanced in acid medium (0.5 mol dm-3 H2SO4) by decorating PtSn/C with bimetallic PtRu nanoparticles modified with phosphododecatungstic acid (PtRu/PW12). The enhancement effect concerns both shifting the onset potential for the DME-oxidation toward less positive values and increase of the DME electrocatalytic current densities recorded under both cyclic voltammetric and chronoamperometric conditions. In that respect, the Ru-oxo species originating from PtRu additives seem to support activity of Sn co-catalytic sites interacting with Pt within the PtSn heterogenous alloy. The polytungstate adsorbates on nanoparticles facilitate their distribution at the electrocatalytic interface, as well as they interact competitively with the CO adsorbates at noble metal catalytic sites. The hybrid materials composed of PtSn/C decorated with PtRu nanoparticles modified with PW12 seem to act as multifunctional nanoreactors during electrooxidation of DME.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorRytelewska, Beata
dc.contributor.authorRutkowska, Iwona
dc.contributor.authorKulesza, Paweł
dc.date.accessioned2024-01-25T03:31:09Z
dc.date.available2024-01-25T03:31:09Z
dc.date.issued2022
dc.description.financePublikacja bezkosztowa
dc.description.number7
dc.description.volume108
dc.identifier.doi10.1149/10807.0017ECST
dc.identifier.issn1938-5862
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/108759
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofECS Transactions
dc.relation.pages17 - 28
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleHybrid Electrocatalysts Composed of PtSn, Ru or PtRu Nanoparticles for Low-Temperature Oxidation of Dimethyl Ether Fuel
dc.typeJournalArticle
dspace.entity.typePublication