Abstract

MoO 3 is incorporated into Vulcan carbon XC-72R by solid–state reaction under intermittent microwave heating (IMH) method. The Pt nanoparticles are dispersed by microwave-assisted polyol process. The physicochemical characterization reveals that MoO 3 and Pt nanoparticles are evenly deposited on Vulcan carbon XC-72R. The non-conducting MoO 3 is electrochemically reduced to nonstoichiometric and electroconductive hydrogen molybdenum bronze (H x MoO 3) in acidic solution. The peak current for methanol electrooxidation is about 128% higher on Pt-MoO 3/C electrode than Pt-Ru/C electrode. Also, there is a significant increase in the electrode response toward stability test which can be attributed to hydrogen molybdenum bronze phase and its direct role in the conversion of CO to CO 2. Intermittent microwave heating method is effective for incorporating oxide materials in Vulcan XC-72R in a short span of time which is evidenced by the formation of hydrogen molybdenum bronze phase during the CV measurements.

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