Artykuł w czasopiśmie
Brak miniatury
Licencja
CC-BYCC-BY - Uznanie autorstwa
 

Multifunctional Material Composed of Cesium Salt of Keggin-Type Heteropolytungstate and PtRh/Vulcan Nanoparticles for Electrochemical Oxidation of 2-Propanol in Acidic Medium

Uproszczony widok
dc.abstract.enPlatinum–rhodium nanoparticles modified with cesium salt of phosphotungstic acid, CsPTA, have been tested for electrooxidation of 2-propanol in acidic medium. The resulting Pt-based nanoparticle-containing materials have been carried out using X-ray diffraction (XRD), microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and different electrochemical techniques combining with differential electrochemical mass spectrometry (DEMS). The experimental results such as cyclic voltammetry and chronoamperometry exhibit that films on carbon electrodes composed of CsPTA-modified PtRh/Vulcan nanoparticles improve the catalytic activity, in terms of potential and current densities recorded during electro-oxidation of 2-propanol, relative to the CsPTA-free PtRh/Vulcan nanoparticles. Particularly, the boost in the catalytic current densities is observed at low potential value (below 0.25 V vs. RHE). The differential electrochemical mass spectrometry measurements were utilized to recognize the reaction intermediates as well as products created during the electro-oxidation of 2-propanol. The results indicate that contributions from a traightforward oxidation of 2-propanol to CO2 are small in comparison to acetone yield.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMiecznikowski, Krzysztof
dc.contributor.authorZakrzewska, Barbara
dc.contributor.authorKowalewska, Barbara
dc.contributor.authorGralec, Barbara
dc.contributor.authorJakubów-Piotrowska, Katarzyna
dc.date.accessioned2024-01-25T13:06:07Z
dc.date.available2024-01-25T13:06:07Z
dc.date.copyright2020-05-29
dc.date.issued2020
dc.description.accesstimeAT_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number4
dc.description.versionFINAL_PUBLISHED
dc.description.volume11
dc.identifier.doi10.1007/S12678-020-00606-X
dc.identifier.issn1868-2529
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/113070
dc.identifier.weblinkhttp://link.springer.com/content/pdf/10.1007/s12678-020-00606-x.pdf
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofElectrocatalysis
dc.relation.pages454-463
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.enDirect alcohol fuel cells
dc.subject.enElectro-oxidation of 2-propanol
dc.subject.enCesium salts of heteropoly acid
dc.subject.enPt-based nanoparticles
dc.subject.enDEMS
dc.titleMultifunctional Material Composed of Cesium Salt of Keggin-Type Heteropolytungstate and PtRh/Vulcan Nanoparticles for Electrochemical Oxidation of 2-Propanol in Acidic Medium
dc.typeJournalArticle
dspace.entity.typePublication