Issue

Vol. 5 No. 4 (2013)

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

https://doi.org/10.1007/BF03353761
Hongxiao Zhao
Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Henan 461000 China
Zhi Zheng
Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Henan 461000 China
Jing Li
Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Henan 461000 China
Huimin Jia
Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Henan 461000 China
Ka-wai Wong
Chengdu Green Energy and Green Manufacturing R&D Center, Sichuan 610207 China
Yidong Zhang
Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Henan 461000 China
WoonMing Lau
Chengdu Green Energy and Green Manufacturing R&D Center, Sichuan 610207 China

Corresponding Author: Zhi Zheng

zhaoxiao124@126.com

Nano-Micro Letters, Vol. 5 No. 4 (2013), Article Number: 296-302

Abstract

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).

Keywords

Pt-Co3O4 nanocomposite MOR Electrocatalytic activity
Zhao, Hongxiao, Zhi Zheng, Jing Li, Huimin Jia, Ka-wai Wong, Yidong Zhang, and WoonMing Lau. 2013. “Substitute of Expensive Pt With Improved Electrocatalytic Performance and Higher Resistance to CO Poisoning for Methanol Oxidation: The Case of Synergistic Pt-Co3O4 Nanocomposite”. Nano-Micro Letters 5 (4):296-302. https://doi.org/10.1007/BF03353761.
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