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- Title
Synthesis of Pt-Ni Alloy Nanocrystals with High-Index Facets and Enhanced Electrocatalytic Properties.
- Authors
Xiling Xu; Xin Zhang; Hui Sun; Ying Yang; Xiaoping Dai; Jinsen Gao; Xueyong Li; Pengfang Zhang; Hong-Hui Wang; Neng-Fei Yu; Shi-Gang Sun
- Abstract
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 highactivity 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).
- Subjects
PLATINUM alloys; METAL nanoparticles; ELECTROCATALYSIS; NANOPARTICLE synthesis; OXYGEN reduction
- Publication
Angewandte Chemie, 2014, Vol 126, Issue 46, p12730
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201406497