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Synthesis of Pt–Ni Alloy Nanocrystals with High‐Index Facets and Enhanced Electrocatalytic Properties
Author(s) -
Xu Xiling,
Zhang Xin,
Sun Hui,
Yang Ying,
Dai Xiaoping,
Gao Jinsen,
Li Xueyong,
Zhang Pengfang,
Wang HongHui,
Yu NengFei,
Sun ShiGang
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201406497
Subject(s) - nanocrystal , alloy , formic acid , catalysis , materials science , methanol , oxygen reduction , chemical engineering , oxygen reduction reaction , metal , nanotechnology , metallurgy , chemistry , electrode , electrochemistry , organic chemistry , engineering
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).