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Abstract

The electrocatalyst, Pt/MoO_(3) synthesized by solid state reaction, was used for the oxidation of methanol in direct methanol fuel cells. The X-Ray diffraction and cyclic voltammetry were employed to investigate the performance of the material. It was shown that the typical diffraction peaks for Pt appeared in XRD. And a good electrocatalysis for methanol oxidation was observed. The peak potential of the methanol oxidation appeared at ca. 0.63V(vs.SCE) and the peak current density for the oxidation was 78.1 mA cm~(-2) .

Keywords

Pt/MoO_(3), Solid state reaction, Methanol oxidation, Electrocatalysis

Publication Date

2004-08-28

Online Available Date

2004-08-28

Revised Date

2004-08-28

Received Date

2004-08-28

References

[1] PrabhuramJ,ManoharanR.Investigationofmethanoloxidationonunsupportedplatinumelectrodesinstrongalkaliandstrongacid[J].J.PowerSources,1998,74:5461.
[2] WhiteJH,SammellsAF.Perovskiteanodeelectrocatalysisfordirectmethanolfuelcells[J].J.Electrochem.Soc.1993,140(6):21672175.
[3] AntoliniE,CardeliniF.FormationofcarbonsupportedPtRualloys:anXRDanalysis[J].J.AlloysandCompounds,2001,315:118123.
[4] ZhouYi ming(周益明),XinXin quan(忻新泉).Syntheticchemistryforsolidstatereactionatlow heatingtemperatures[J].ChineseJournalofInorganicChemistry,1999,15:273292.
[5] HamnettA.Mechanismandelectrocatalysisinthedirectmethanolfuelcell[J].CatalysisToday,1997,38:445451.

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