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

被引：0
作者：
Cui, Zhiming [2 ]
Guo, Chun Xian [1 ,3 ]
Li, Chang Ming [1 ,3 ]
机构：
[1] Southwest Univ, Inst Clean Energy & Adv Mat, Chongqing, Peoples R China
[2] Nanyang Technol Univ, Ctr Adv Bionanosyst, Singapore 637457, Singapore
[3] Chongqing Key Lab Adv Mat & Technol Clean Energie, Chongqing 400715, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 22期
关键词：
CARBON NANOTUBES; PTRU CATALYSTS; OXYGEN REDUCTION; FUEL-CELLS; ELECTROCATALYSIS; NANOPLATELETS; NANOCATALYSTS; NANOCOMPOSITE; PERFORMANCE; NANOFIBERS;
D O I：
10.1039/c3ta10842b
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 (similar to 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.
引用
收藏
页码：6687 / 6692
页数：6
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