Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 1689-1694 |
| Number of pages | 6 |
| Journal | Korean Journal of Chemical Engineering |
| Volume | 27 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2010 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Bimetallic catalyst
- Oxygen reduction reaction (ORR)
- Pd catalyst
- Polymer electrolyte fuel cells (PEMFCs)
- Pt catalyst
Quacquarelli Symonds(QS) Subject Topics
- Engineering - Chemical
- Chemistry
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