Deactivation is one the main causes still preventing the full exploitation of palladium electrocatalysts in alkaline direct alcohol fuel cells and the electrochemical reforming of alcohols. While often attributed to the dsorption of poisoning species generated in the alcohols oxidation, in the present work we demonstrate that deactivation is provoked by the formation of palladium oxides. A combined approach including i) fuel cell runs, ii) cyclic voltammetry and iii) near edge X-ray absorption spectroscopy has enabled us to draw the conclusions reported in the paper.

Deactivation of Palladium Electrocatalysts for Alcohols Oxidation in Basic Electrolytes / Wang, Lianqin; Lavacchi, Alessandro; Bellini, Marco; D’Acapito, Francesco; Di Benedetto, Francesco; Innocenti, Massimo; Miller, Hamish A.; Montegrossi, Giordano; Zafferoni, Claudio; Vizza, Francesco. - In: ELECTROCHIMICA ACTA. - ISSN 0013-4686. - ELETTRONICO. - 177:(2015), pp. 100-106. [10.1016/j.electacta.2015.02.026]

Deactivation of Palladium Electrocatalysts for Alcohols Oxidation in Basic Electrolytes

LAVACCHI, ALESSANDRO;BELLINI, MARCO;DI BENEDETTO, FRANCESCO;INNOCENTI, MASSIMO;ZAFFERONI, CLAUDIO;VIZZA, FRANCESCO
2015

Abstract

Deactivation is one the main causes still preventing the full exploitation of palladium electrocatalysts in alkaline direct alcohol fuel cells and the electrochemical reforming of alcohols. While often attributed to the dsorption of poisoning species generated in the alcohols oxidation, in the present work we demonstrate that deactivation is provoked by the formation of palladium oxides. A combined approach including i) fuel cell runs, ii) cyclic voltammetry and iii) near edge X-ray absorption spectroscopy has enabled us to draw the conclusions reported in the paper.
2015
177
100
106
Wang, Lianqin; Lavacchi, Alessandro; Bellini, Marco; D’Acapito, Francesco; Di Benedetto, Francesco; Innocenti, Massimo; Miller, Hamish A.; Montegrossi, Giordano; Zafferoni, Claudio; Vizza, Francesco
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1009192
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