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Graphene‐Supported Trimetallic Core–Shell Cu@CoNi Nanoparticles for Catalytic Hydrolysis of Amine Borane
Author(s) -
Meng Xiangyu,
Yang Lan,
Cao Nan,
Du Cheng,
Hu Kai,
Su Jun,
Luo Wei,
Cheng Gongzhen
Publication year - 2014
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201300336
Subject(s) - ammonia borane , catalysis , graphene , dehydrogenation , noble metal , materials science , nanoparticle , borane , methylamine , hydrolysis , inorganic chemistry , metal , chemical engineering , chemistry , nanotechnology , organic chemistry , metallurgy , engineering
Trimetallic core–shell Cu@CoNi nanoparticles (NPs) supported on graphene with different compositions are synthesized through a one‐step in situ reduction process by using methylamine borane (MeAB) as a reducing agent. The as‐synthesized Cu‐core/CoNi‐shell NPs are well dispersed on graphene. Among the catalysts studied, Cu 0.1 @Co 0.45 Ni 0.45 /graphene displays the highest catalytic performance toward the hydrolysis of ammonia borane (AB), with a turnover frequency (TOF) value of 15.46 mol H 2 min −1 (mol catalyst) −1 , which is higher than those of most reported non‐noble‐metal‐based NPs, and even higher than many noble‐metal‐based NPs. Additionally, the as‐synthesized Cu 0.1 @Co 0.45 Ni 0.45 /graphene NPs reduced by MeAB exhibit a higher catalytic activity than those reduced by NaBH 4 and AB. Furthermore, the as‐prepared NPs have good durability and magnetic recyclability for the hydrolytic dehydrogenation of AB and MeAB.