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

CHEN Wei; LIAO Wei-ping; JIN Ming-shan; SUO Zhang-huai

Volume 40 Issue 12

Dec. 2012

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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.

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.

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.

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

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

Received Date: 2012-03-13
Rev Recd Date: 2012-06-18
Publish Date: 2012-12-31

Abstract

Abstract

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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References(25)

References

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