Effects of Microwave Power on Performance of Pt/CeO₂MWCNTs Catalysts Prepared by Microwave-Assisted Polyol Process for Methanol Electrooxidation

Abstract:

Pt/CeO₂/multi-walled carbon nanotubes (Pt/CeO₂/MWCNTs) catalysts have been synthesized by microwave-assisted polyol process at different microwave power values. The obtained samples have been characterized by physical examinations and electrochemical measurements. The effects of different microwave power on performance of Pt/CeO₂/MWCNTs have been mainly investigated. The results of physical examinations show that Pt nanoparticles have a narrow size and Pt nanoparticles and CeO2 units are highly dispersed on the surface of MWCNTs. The results of electrochemical measurements present that Pt/CeO2/MWCNTs catalysts by microwave-assis_{Subscript text}ted polyol process have higher catalytic activity and stability than Pt/MWCNTs catalyst by the same procedure. When the value of microwave power is 70%, the Pt/CeO₂/MWCNTs catalyst has the smallest particle size and exhibits the highest activity and stability of methanol electrooxidation.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 1500-1503
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.1500
• Online since: May 2013
• Authors: Yu Gu, Chun Tao Liu, Jian Gao, Kuo Wang, Yong Rong Sun, Chun Yu Du
• Keywords: Methanol Electrooxidation, Microwave Power, Pt/CeO₂/MWCNTs Catalysts

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