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Issue
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
Jung D, Beak S, Nahm KS, Kim P
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.
Keywords: Oxygen Reduction Reaction (ORR); Pd Catalyst; Pt Catalyst; Bimetallic Catalyst; Polymer Electrolyte Fuel Cells (PEMFCs)
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[Cited By]
  1. Park JH, Sohn Y, Jung DH, Kim P, Joo JB, Journal of Industrial and Engineering Chemistry, 36, 109, 2016
  2. Sohn Y, Jung HJY, Kim P, Korean Journal of Chemical Engineering, 34(8), 2162, 2017
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