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A Strategy for Designing a Concave Pt–Ni Alloy through Controllable Chemical Etching
Author(s) -
Wu Yuen,
Wang Dingsheng,
Niu Zhiqiang,
Chen Pengcheng,
Zhou Gang,
Li Yadong
Publication year - 2012
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.201207491
Subject(s) - etching (microfabrication) , octahedron , alloy , materials science , isotropic etching , corrosion , catalysis , metallurgy , chemical engineering , nanoparticle , nanotechnology , crystallography , chemistry , crystal structure , organic chemistry , layer (electronics) , engineering
This corrosion : Octahedral Pt–Ni alloy nanoparticles (NPs) are converted into concave Pt 3 Ni NPs by a coordination‐assisted chemical‐etching process (see scheme). The corroded concave Pt–Ni NPs have a higher density of low‐coordinate atoms in steps sites, a decisive property in heterogeneous catalysis.