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Ultrathin Free‐Standing Ternary‐Alloy Nanosheets
Author(s) -
Hong Jong Wook,
Kim Yena,
Wi Dae Han,
Lee Seunghoon,
Lee SuUn,
Lee Young Wook,
Choi SangIl,
Han Sang Woo
Publication year - 2016
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.201510460
Subject(s) - ternary operation , alloy , materials science , nanomaterials , nanostructure , ternary alloy , molar ratio , nanotechnology , catalysis , chemical engineering , metal , metallurgy , chemistry , organic chemistry , computer science , engineering , programming language
A synthesis strategy for the preparation of ultrathin free‐standing ternary‐alloy nanosheets is reported. Ultrathin Pd‐Pt‐Ag nanosheets with a thickness of approximately 3 nm were successfully prepared by co‐reduction of the metal precursors in an appropriate molar ratio in the presence of CO. Both the presence of CO and the interplay between the constituent metals provide fine control over the anisotropic two‐dimensional growth of the ternary‐alloy nanostructure. The prepared Pd‐Pt‐Ag nanosheets were superior catalysts of ethanol electrooxidation owing to their specific structural and compositional characteristics. This approach will pave the way for the design of multicomponent 2D nanomaterials with unprecedented functions.