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Korean Journal of Chemical Engineering, Vol.27, No.6, 1689-1694, 2010
Enhancement of oxygen reduction activity by sequential impregnation of Pt and Pd on carbon support
Two Pd-based PtPd bimetallic catalysts (mole ratio of Pt to Pd=1 : 18) were prepared by co-impregnation (Pt-Pd/C) and sequential impregnation of Pt on Pd/C [Pt(Pd/C)] for the application to oxygen reduction reaction (ORR). The prepared bimetallic catalysts had lower ORR activities than Pt/C, while they showed largely enhanced activity compared to Pd/C. In particular, the extent of enhancement was found to be dependent on the surface composition. The observed mass and specific activities of Pt(Pd/C) were more than two times higher than those of Pt-Pd/
C. The superior activity of Pt(Pd/C) observed from the performed studies was attributed to its Pt-rich surface.
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[Cited By]
- Park JH, Sohn Y, Jung DH, Kim P, Joo JB, Journal of Industrial and Engineering Chemistry, 36, 109, 2016
- Sohn Y, Jung HJY, Kim P, Korean Journal of Chemical Engineering, 34(8), 2162, 2017
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