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Issue 16, 2012
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Bimetallic PtPd nanoparticles on Nafion–graphene film as catalyst for ethanol electro-oxidation

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Abstract

A simple electrochemical method is employed to synthesize nanoparticles of bimetallic PtPd alloy on Nafion–graphene film. The alloy nanoparticles exhibit efficient electrocatalytic activity and stability toward ethanol oxidation in alkaline media. With the synergetic effects of the PtPd nanoparticles and the enhanced electron transfer stem from graphene, this anode catalyst has higher current density than the monometallic Pt or Pd catalyst. Moreover, this anode catalyst has a low onset potential at −0.73 V (vs. Ag/AgCl) and a high ratio of forward peak current density to backward peak current density (If/Ib) of 5.45. The results indicate that the catalyst has good tolerance against poisoning by intermediates generated during ethanol electro-oxidation and is effective in cleaving the C–C bond to achieve oxidation of ethanol to CO2.

Graphical abstract: Bimetallic PtPd nanoparticles on Nafion–graphene film as catalyst for ethanol electro-oxidation

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Publication details

The article was received on 30 Dec 2011, accepted on 12 Feb 2012 and first published on 14 Mar 2012


Article type: Paper
DOI: 10.1039/C2JM16916A
Citation: J. Mater. Chem., 2012,22, 8057-8062
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    Bimetallic PtPd nanoparticles on Nafion–graphene film as catalyst for ethanol electro-oxidation

    X. Yang, Q. Yang, J. Xu and C. Lee, J. Mater. Chem., 2012, 22, 8057
    DOI: 10.1039/C2JM16916A

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