CeO_2/Pt Composite Electrodes and Their Catalytic Performance

Authors

Ying FU, State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing,400044,China;School of Chemistry and Chemical Engineering,Chongqing University,Chongqing,400044,China;
Zi-dong WEI, State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing,400044,China;School of Chemistry and Chemical Engineering,Chongqing University,Chongqing,400044,China;School of Material Science and Engineering,Chongqing University,Chongqing,400044,China;
Yong-chao FENG, School of Chemistry and Chemical Engineering,Chongqing University,Chongqing,400044,China;
Xin-li MA, School of Chemistry and Chemical Engineering,Chongqing University,Chongqing,400044,China;
Ming-jia LIAO, School of Chemistry and Chemical Engineering,Chongqing University,Chongqing,400044,China;
Chao LIAO, School of Chemistry and Chemical Engineering,Chongqing University,Chongqing,400044,China;
Jie ZHANG, School of Material Science and Engineering,Chongqing University,Chongqing,400044,China;
Huan ZHANG, School of Material Science and Engineering,Chongqing University,Chongqing,400044,China;

Corresponding Author

Zi-dong WEI(zdwei@cqu.edu.cn)

Abstract

In this paper,the cerium oxide(CeO2) nanoparticles were electrochemically deposited on a Pt electrode by potentiostatic deposition(psd) and potential pulse deposition(ppd) to form CeO2/Pt composite electrodes,CeO2/Pt(psd) and CeO2/Pt(ppd).The properties of the CeO2 were characterized by field emission scanning electron microscope(FESEM) and X-ray diffraction(XRD).The results showed that the CeO2 nanoparticles prepared by psd and ppd were homogeneous and dense.The methanol oxidation reaction(MOR) and oxygen reduction reaction(ORR) on the Pt electrode were enhanced with the introduction of CeO2 into Pt.In addition,the catalytic capability of the CeO2/Pt electrode can be further improved after dissolution of part of CeO2 on the composite electrode in H2SO4.The enhanced catalysis of CeO2/Pt electrode was obsarved duo to the oxygen storage capability of CeO2 which helps to oxidize off CO in the MOR and to supply more oxygen to the electrode in the ORR.

Keywords

CeO2, pulse electrodeposition, methanol oxidation, oxygen reduction reaction, platinum

DOI Link

https://doi.org/10.61558/2993-074X.1931

Publication Date

2008-11-28

Online Available Date

2008-11-28

Revised Date

2008-11-28

Received Date

2008-11-28

Recommended Citation

Ying FU, Zi-dong WEI, Yong-chao FENG, Xin-li MA, Ming-jia LIAO, Chao LIAO, Jie ZHANG, Huan ZHANG. CeO_2/Pt Composite Electrodes and Their Catalytic Performance[J]. Journal of Electrochemistry, 2008 , 14(4): 407-410.
DOI: 10.61558/2993-074X.1931
Available at: https://jelectrochem.xmu.edu.cn/journal/vol14/iss4/12