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Mechanism of Ethanol Electrooxidation on Pd Electrode

FANG Xiang, 中山大学物理科学与工程技术学院, 光电材料与技术国家重点实验室, 广州 510275, State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China, SHEN Pei-Kang
2009 Wuli huaxue xuebao  

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Abstract: ThemechanismofethanolelectrooxidationonaPdelectrodewasstudiedbycyclicvoltammetryand in situ Fouriertransforminfrared(FTIR)spectroelectrochemistry.WefoundthatthecatalyticactivityofthePdelectrode forethanoloxidationwasaffectedbythepHvalueofthesolutionandtheconcentrationofethanol.Catalyticreactions couldnotproceeduntilthesolutionpH 跃11.0.TheperformanceforethanoloxidationonPdwasimprovedwiththe increaseinthepHvalueandethanolconcentration.The insitu
more » ... cated thatthereactionmechanismandproductsdependonthepHvalueofthereactionsolution.Themainoxidationproduct wasacetateatpH跃13.0.TheC -CbondcleavageofethanoloccurredasevidencedbytheformationofCO 2 atpH臆 13.0,however,thecatalyticactivityforethanoloxidationwasquitelow.NoCOformationwasdetectedduringthe oxidationofethanolbyFTIRspectroscopy,indicatingtheelectrooxidationwasanon鄄poisoningprocess.
doi:10.3866/pku.whxb20090918 fatcat:qw6papvnezchnhougjysdzn6gy
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FANG Xiang, 中山大学物理科学与工程技术学院, 光电材料与技术国家重点实验室, 广州 510275, State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China, SHEN Pei-Kang. "Mechanism of Ethanol Electrooxidation on Pd Electrode." Wuli huaxue xuebao 25.09 (2009) 1933-1938