Substitute of Expensive Pt with Improved Electrocatalytic Performance and Higher Resistance to CO Poisoning for Methanol Oxidation: the Case of Synergistic Pt-Co3O4 Nanocomposite

In this paper, Pt-Co3O4 nanocomposite was synthesized by a sol gel process combined with electrodeposition method. Its electrocatalytic activity towards methanol oxidation was investigated at room temperature using cyclic voltammetry（CV）, electrochemical impedance spectroscopy（EIS） and current densi...

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Bibliographic Details
Published in:Nano-micro letters 2013-12, Vol.5 (4), p.296-302
Main Authors: Zhao, Hongxiao, Zheng, Zhi, Li, Jing, Jia, Huimin, Wong, Ka-wai, Zhang, Yidong, Lau, Woon Ming
Format: Article
Language:English
Subjects:
Engineering
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
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Summary:In this paper, Pt-Co3O4 nanocomposite was synthesized by a sol gel process combined with electrodeposition method. Its electrocatalytic activity towards methanol oxidation was investigated at room temperature using cyclic voltammetry（CV）, electrochemical impedance spectroscopy（EIS） and current density time curve. It is found that the resultant Pt-Co3O4 catalysts with minute amount of Pt exhibite attractive electrocatalytic activity for methanol oxidation reaction（MOR） but with a high resistance CO poisoning due to the synergistic effects from Pt and Co3O4. Together with the low manufacturing cost of Co3O4, the reported nanostructured Pt-Co3O4 catalyst is expected to be a promising electrode material for direct methanol fuel cells（DMFC）.
ISSN:2150-5551
2311-6706
2150-5551
DOI:10.1007/BF03353761