Citation: CHEN Wei, LIAO Wei-ping, JIN Ming-shan, SUO Zhang-huai. Electrocatalytic performance of Pt-Au catalysts supported on chitosan-modified carbon black for methanol oxidation[J]. Journal of Fuel Chemistry and Technology, ;2012, 40(12): 1459-1465. shu

Electrocatalytic performance of Pt-Au catalysts supported on chitosan-modified carbon black for methanol oxidation

1.
Institute of Applied Catalysis, Yantai University, Yantai 264005, China

Corresponding author: SUO Zhang-huai,
Received Date: 13 March 2012
Available Online: 18 June 2012
Fund Project: 山东省科技攻关计划(2009GG10007022) (2009GG10007022) 山东省自然科学基金(ZR2011BM024)。 (ZR2011BM024)

Chitosan-carbon composite material (CHI-C) was prepared. Pt-Au catalysts supported on chitosan-modified carbon black with different Pt/Au atomic ratios were prepared by a sol immobilization method. The samples were characterized by UV-visible absorption spectroscopy, X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy. The activity and stability for methanol electrocatalytic oxidation reaction were evaluated by cyclic voltammetry and chronoamperograms, respectively. The effects of Pt/Au atomic ratios and chitosan modification on the activities and stabilities were studied. As a result, Pt_1.0＾Au/C catalyst showed the best catalytic activity. Adding small amount CHI to carbon black support can improve the stability of Pt_1.0＾Au/C catalyst.
- platinum,
- gold,
- carbon black,
- chitosan,
- methanol oxidation,
- electrocatalysis
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沈阳化工大学材料科学与工程学院沈阳 110142