Abstract
A novel nanoparticle-stacking thin film (NPSTF) of Pt-Ni alloy for highly active oxygen reduction reaction (ORR) electrocatalyst was synthesized. The Pt mass activity of the synthesized Pt-Ni NPSTF were 10-fold higher than commercial carbon-supported Pt catalysts. The remarkable ORR activity enhancement of the Pt-Ni NPSTF was attributed to the modified electronic properties of the surface Pt-enriched layers induced by underlying Ni atoms and to the increased active surface area achieved by stacking of Pt-Ni nanoparticles. (Chemical Equation Presented).
Original language | English |
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Pages (from-to) | 2209-2212 |
Number of pages | 4 |
Journal | ACS Catalysis |
Volume | 5 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2015 Apr 3 |
Keywords
- Pt-based alloys
- arc plasma deposition
- oxygen reduction reaction
- proton exchange membrane fuel cell
- thin film catalysts
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)