Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 46, Pages 12522-12527Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201406497
Keywords
alloys; electrocatalysis; electrooxidation; oxygen reduction reaction; nanocrystals
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Funding
- National Natural Science Foundation of China [20903119, 21173269, 21321062, 91127040]
- Ministry of Science and Technology of China [2011BAK15B05]
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The shape-controlled synthesis of multicomponent metal nanocrystals (NCs) bounded by high-index facets (HIFs) is of significant importance in the design and synthesis of high-activity catalysts. We report herein the preparation of Pt-Ni alloy NCs by tuning their shape from concave-nanocubic (CNC) to nanocubic and hexoctahedral (HOH). Owing to the synergy of the HIFs and the electronic effect of the Pt-Ni alloy, the as-prepared CNC and HOH Pt-Ni alloy NCs exhibited excellent catalytic properties for the electrooxidation of methanol and formic acid, as well as for the oxygen reduction reaction (ORR).
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