| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7722711 | International Journal of Hydrogen Energy | 2013 | 5 Pages |
Abstract
Platinum nanoparticles have been successfully assembled on polyaniline functionalized graphite nanoplatelet (GNP) via a noncovalent functionalization strategy. The characterization of obtained nanocomposite was investigated by XRD, TEM, XPS and electrochemical technology. When the moderate amount of polyaniline as a stabilizer, Pt nanoparticles with sizes of approximate 4-5Â nm uniformly disperse on GNP surface. In methanol oxidation reaction, the electrocatalytic activity of Pt/PANI-GNP is nearly 2 times higher than that of Pt/GNP catalyst. Through analysis, it is suggested that the electrocatalysis performance of Pt/PANI-GNP may be improved by the following four factors: (1) uniformly distributed nanoparticle; (2) increased of amount of Pt0 and oxygen-containing groups; (3)Â the existence of N atoms; (4) difference reaction mechanism.
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Authors
Xueping Zhang, Gaoqiang Xia, Chengde Huang, Yuxin Wang,