Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 37, Issue 19, Pages 14143-14151Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2012.07.092
Keywords
Hydrogen peroxide reduction; Pt electrocatalyst; Bimetallic Pt alloys; Direct borohydride fuel cells
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Funding
- Fundacao para a Ciencia e a Tecnologia (FCT, Portugal) [SFRH/BD/72968/2010, SFRH/BPD/63226/2009, SFRH/BPD/77768/2011]
- Ciencia 2008
- Fundação para a Ciência e a Tecnologia [SFRH/BD/72968/2010, SFRH/BPD/63226/2009] Funding Source: FCT
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Carbon supported bimetallic Pt-alloys (Pt0.75M0.25/C, with M = Ni or Co) are investigated as novel electrode materials for H2O2 reduction in acid solution. The alloy electrocatalysts, Pt0.75Ni0.25/C and Pt0.75Co0.25/C, as well as carbon supported Pt (Pt/C) are characterised using cyclic voltammetry. The electrocatalytic activity of the materials is studied using a rotating disc electrode system with a combination of linear scan voltammetry and chronoamperometry. It is found that the activity of Pt0.75M0.25/C electrocatalysts for H2O2 reduction is comparable to the activity of Pt/C electrocatalyst, with Pt0.75Co0.25/C exhibiting the best performance. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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