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Preparation of Pt-Co catalysts on mesoporous carbon and effect of alloying on catalytic activity in oxygen electro-reduction

  • Catalysis, Reaction Engineering, Industrial Chemistry
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Abstract

Mesoporous carbon (MC)-supported PtCo catalysts were prepared by a sodium borohydride (NaBH4) reduction method. To increase the alloy degree of PtCo catalyst, the heat treatment was carried out at various temperatures (300–700°C). The heat-treated PtCo catalysts (PtCo/MC-x) had the higher degrees of Pt-Co alloy than that of as-synthesized PtCo catalyst (PtCo/MC). MC supported-PtCo catalyst (PtCo/MC-500) that was treated at 500°C, had the highest activity and lowest overpotential in oxygen electro-reduction (ORR) among the prepared PtCo catalysts. The high alloy degree and favorable chemical states of PtCo/MC-500 are believed to be responsible for the superior activity in oxygen electroreduction compared to the other PtCo catalysts.

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Authors and Affiliations

  1. School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul, 151-744, Korea

    Ji Bong Joo, You Jung Kim, Wooyoung Kim, Nam Dong Kim, Pil Kim, Younghun Kim, Youn-Woo Lee & Jongheop Yi

  2. School of Environmental and Chemical Engineering, Chonbuk National University, Deokjin-dong 1ga, Deokjin-gu, Jeonju, Jeonbuk, 561-756, Korea

    Pil Kim

  3. Department of Chemical Engineering, Kwangwoon University, Wolgye-dong, Nowon-gu, Seoul, 139-701, Korea

    Younghun Kim

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  1. Ji Bong Joo
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  2. You Jung Kim
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  3. Wooyoung Kim
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  4. Nam Dong Kim
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  5. Pil Kim
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  6. Younghun Kim
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  7. Youn-Woo Lee
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  8. Jongheop Yi
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Correspondence to Jongheop Yi.

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Joo, J.B., Kim, Y.J., Kim, W. et al. Preparation of Pt-Co catalysts on mesoporous carbon and effect of alloying on catalytic activity in oxygen electro-reduction. Korean J. Chem. Eng. 25, 431–436 (2008). https://doi.org/10.1007/s11814-008-0073-7

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  • DOI: https://doi.org/10.1007/s11814-008-0073-7

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