Electrocatalytic Oxidation of Methanol and Related Chemical Species on Ultrafine Pt and PtRu Particles Supported on Carbon |
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| Authors: | Yoshio Takasu Wataru Sugimoto Yasushi Murakami |
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| Institution: | (1) Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, 386-8567, Japan |
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| Abstract: | Well-homogenized PtRu/C electrocatalysts possessing high specific activity for methanol electro-oxidation were prepared by a co-impregnation method from carbon black and ethanolic solutions of Pt(NH3)2(NO2)2 and RuNO(NO3)
x
. The specific activity for methanol electro-oxidation increased with an increase in the PtRu particle size. A similar size effect was observed for Pt/C electrocatalysts. The size effect was discussed by considering a model catalyst method. |
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| Keywords: | electrocatalyst platinum ruthenium PtRu platinum complex ruthenium complex methanol oxidation carbon monoxide fuel cell DMFC |
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