Issue 22, 2013
From the journal:

Journal of Materials Chemistry A

Self-assembled phosphomolybdic acid–polyaniline–graphene composite-supported efficient catalyst towards methanol oxidation†

Zhiming Cui,b   Chun Xian Guoac  and  Chang Ming Li*ac  

* Corresponding authors

a Institute for Clean Energy & Advanced Materials, Southwest University, P.R. China
E-mail: ECMLi@ntu.edu.sg

b Centre for Advanced Bionanosystems, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457

c Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, China

Abstract

Graphene sheets are modified by self-assembly of phosphomolybdic acid followed by in situ formation of polyaniline (PANI-HPMo-GS) to uniformly deposit small nanoparticles of Pt catalyst (∼3 nm) by interaction between PANI and PtCl62−. The Pt/PANI-HPMo-GS material exhibits significantly enhanced electrocatalytic activity (322 mA mg−1 Pt) and high stability (voltage degradation rate of 60 mV h−1 at a constant load of 4 mA cm−2 and peak current reduces by 22.7% after 100 voltammetry cycles) for methanol oxidation. This self-assembly strategy can be readily extended to the fabrication of other carbon based hybrid supports for precious metal catalysts for various applications.

Graphical abstract: Self-assembled phosphomolybdic acid–polyaniline–graphene composite-supported efficient catalyst towards methanol oxidation

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Article information

DOI
https://doi.org/10.1039/C3TA10842B
Article type
Paper
Submitted
27 Feb 2013
Accepted
25 Mar 2013
First published
25 Mar 2013

J. Mater. Chem. A, 2013,1, 6687-6692

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Self-assembled phosphomolybdic acid–polyaniline–graphene composite-supported efficient catalyst towards methanol oxidation

Z. Cui, C. X. Guo and C. M. Li, J. Mater. Chem. A, 2013, 1, 6687 DOI: 10.1039/C3TA10842B

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