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Synthesis of Carbon‐Encapsulated Cu–Ag Dimetallic Nanoparticles and Their Recyclable Superior Catalytic Activity towards 4‐Nitrophenol Reduction
Author(s) -
Xu Shuling,
Li Haibo,
Wang Lei,
Yue Qiaoli,
Li Rui,
Xue Qingwang,
Zhang Yuanfu,
Liu Jifeng
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500599
Subject(s) - chemistry , catalysis , 4 nitrophenol , ascorbic acid , nanoparticle , reducing agent , carbon fibers , nuclear chemistry , copper , nitrophenol , selective catalytic reduction , organic chemistry , combinatorial chemistry , nanotechnology , materials science , food science , composite number , composite material
A facile one‐pot route has been developed for the synthesis of carbon‐encapsulated Cu–Ag dimetallic nanoparticles (C–CuAg NPs). The synthesis was conducted using AgNO 3 and Cu(NO 3 ) 2 as metal precursors and ascorbic acid as the reduction agent and carbon source. The catalytic activities of the C–CuAg NPs for the reduction of 4‐nitrophenol (4‐NP) with NaBH 4 were tracked by UV/Vis spectroscopy, which demonstrates that the as‐prepared C–CuAg NPs exhibit significantly enhanced catalytic activity compared with carbon‐encapsulated Cu nanoparticles (C–CuNPs) and carbon‐encapsulated Ag nanoparticles (C–Ag NPs). Notably, the catalysts are stable, and there is a high conversion efficiency for at least ten successive cycles. Considering the green facile preparation procedure and high catalytic activity, the prepared C–CuAg NPs hold great promise as highly efficient, cost‐effective, and environmentally friendly catalysts for industrial applications.