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Issue
Korean Journal of Chemical Engineering,
Vol.26, No.4, 1028-1033, 2009
Ternary Pt45Ru45M10/C (M=Mn, Mo and W) catalysts for methanol and ethanol electro-oxidation
Jeon MK, Lee KR, Woo SI
Ternary Pt45Ru45Mn10/C, Pt45Ru45Mo10/C and Pt45Ru45W10/C catalysts were synthesized and physical and electrochemical properties were characterized. Particle sizes of the catalysts were determined by X-ray diffraction to be 3.9, 4.8 and 4.6 nm for the Mn, Mo and W incorporated catalysts, respectively. Electrochemically active surface areas were calculated from CO stripping results, which were 17.7, 17.2 and 15.7 m2/g(catal) for the Pt45Ru45Mn10/C, Pt45Ru45Mo10/ C and Pt45Ru45W10/C catalysts, respectively. In methanol electro-oxidation, the Pt45Ru45W10/C catalyst showed highest mass and specific activities of 2.78 A/gcat. and 177 mA/m2, respectively, which were 22 and 100% higher than those of commercial PtRu/C. In the case of ethanol electro-oxidation, the Pt45Ru45Mo10/C catalyst exhibited highest mass and specific activities of 4.8 A/g(catal) and 280 mA/m2, respectively. Specific activity of the Pt45Ru45Mo10/C catalyst was 56% higher than that of the commercial PtRu/C.
Keywords: Electrocatalyst; Direct Alcohol Fuel Cell; Methanol Electro-oxidation; Ethanol Electro-oxidation; CO Stripping
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[Cited By]
  1. Jeon MK, Lee KR, Woo SI, Korean Journal of Chemical Engineering, 30(7), 1410, 2013
  2. Jeon MK, Lee KR, Jeon HJ, McGinn PJ, Kang KH, Park GI, Korean Journal of Chemical Engineering, 32(2), 206, 2015
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