Graphene Supported Platinum-Cobalt Nanoparticles as Anode Electrocatalyst for Direct Methanol Fuel Cell

V Kepeniene¹, L Tamasauskaite-Tamasiunaite², J Jablonskiene³, M Semasko⁴, J Vaiciuniene⁵, R Kondrotas⁶, E Norkus⁷

Center for Physical Sciences and Technology, A. Gostauto 9, Vilnius LT-01108, Lithuania

Abstract

In the present study the graphene supported platinum-cobalt nanoparticles were prepared via microwave synthesis. The composition of prepared catalysts was examined by Inductively Coupled Plasma Optical Emission Spectroscopy. The shape and size of catalyst particles were determined by Transmission Electron Microscopy. The electrocatalytic activity of the graphene supported platinum-cobalt nanoparticles was investigated towards the electrooxidation of methanol in an alkaline medium. It was found that the graphene supported platinum-cobalt nanoparticles having the Pt:Co molar ratio 1:7 shows highest activity towards the electro-oxidation of methanol as compared with that of catalysts with the Pt:Co molar ratios equal to 1:1 and 1:44 and the graphene supported bare Co or commercial Pt/C with 10 wt.% Pt loading.

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• L Tamasauskaite-Tamasiunaite : Profile
• J Jablonskiene : Profile
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• J Vaiciuniene : Profile
• R Kondrotas : Profile
• E Norkus : Profile

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V Kepeniene, L Tamasauskaite-Tamasiunaite, J Jablonskiene, M Semasko, J Vaiciuniene, R Kondrotas. Graphene Supported Platinum-Cobalt Nanoparticles as Anode Electrocatalyst for Direct Methanol Fuel Cell. International Congress 2014. Vol. 1. Chennai: Association of Scientists, Developers and Faculties, 2014. 84-89. Print.