Highly dense and uniformly dispersed platinum nanoparticles on poly(acrylic acid) modified multi-walled carbon nanotubes for methanol oxidation |
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| Authors: | Feng Zhang Guiquan Guo |
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| Affiliation: | a Key Laboratory for Ecological-Environment Materials of Jiangsu Province, School of Materials Engineering, Yancheng Institute of Technology, Yancheng 224051, Jiangsu Province, China
b Shanghai Shine Petroleum Pipe Special Coating Material Co., Ltd., Shanghai 200491, China |
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| Abstract: | Poly(acrylic acid) modified multi-walled carbon nanotubes (PAA-MWNTs) were synthesized through in situ radical polymerization in acetone and the PAA-MWNTs were used as supporting material for platinum nanoparticles. Platinum nanoparticles were deposited on the surface of PAA-MWNTs with high loading and high dispersion through ethylene glycol reduction. The size of Pt nanoparticles on PAA-MWNTs can be tuned by the water content in the reaction system and the loading amount can be adjusted by the mass ratio of H2PtCl6 to PAA-MWNTs. The electrocatalytic properties of the Pt/PAA-MWNTs catalyst were evaluated by methanol oxidation. The results of cyclic voltammetry show that the Pt/PAA-MWNTs composite possesses high electrocatalytic activity, good long-term stability and storage property, which can be attributed to the small particle size and high dispersion of Pt nanoparticles as well as the nature of MWNTs. |
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| Keywords: | A Composites A Polymers B Chemical synthesis D Electrochemical property |
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