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Abstract

Using liquid-reduction or complex-redution method,four catalysts,i.e,the Au/C,Pd/C,Pd-Au/C-T and Pd-Au/C-H were preparated and which electroanalytic activities and stabilities for the oxidation of formic acid were compares.It was found that the Au/C catalyst has no electrocatalytic activity,and the Pd/C catalyst possesses the good electrocatalytic performance for the oxidation of formic acid.The addition of Au into the Pd/C catalyst can increase the electrocatalytic activity and stability.Especially,the electrocatalytic activity and stability of the Pd-Au/C-T catalyst with the alloy of Pd and Au are better than that of the of the Pd-Au/C-H catalyst,in which,Pd and Au do not form the alloy.The investigation of its reason is underway.

Keywords

Pd, Au, carbon supported Pd-Au catalyst, formic acid, alloying

Publication Date

2008-02-28

Online Available Date

2008-02-28

Revised Date

2008-02-28

Received Date

2008-02-28

References

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[4]Waszczuk P,Barnard TM C,Rice C,et al.A nanop-article catalyst with superior activity for electrooxidationof formic acid[J].Electrochem Commun,2006,4:599-603.
[5]Chen Y,Tang Y W,Liu C P,et al.Room temperaturepreparation of carbon supported Pt-Ru catalyst[J].JPower Sources,2006,161:470-473.

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