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Size-Controlled Synthesis of CuNi Nano-Octahedra and Their Catalytic Performance towards 4-Nitrophenol Reduction Reaction

Published online by Cambridge University Press:  24 January 2019

Can Li
Affiliation:
Department of Chemistry, State University of New York at Binghamton, New York, USA.
Yiliang Luan
Affiliation:
Department of Chemistry, State University of New York at Binghamton, New York, USA.
Bo Zhao
Affiliation:
College of Arts & Sciences Microscopy, Texas Tech University, Texas, USA.
Amar Kumbhar
Affiliation:
Chapel Hill Analytical and Nanofabrication Laboratory, University of North Carolina at Chapel Hill, North Carolina, USA.
Jiye Fang
Affiliation:
Department of Chemistry, State University of New York at Binghamton, New York, USA.
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Abstract

In this work, we demonstrate a size-controlled synthesis of CuNi octahedral nanocrystals (NCs) using a hot colloidal solution approach. Two different sizes of CuNi nano-octahedra are chosen and investigated. It is determined that the reagent concentration remarkably plays a key role in the formation of the size-defined CuNi octahedral NCs. In terms of the reduction of 4-nitrophenol (4-NP), it uncovers that the obtained CuNi octahedral NCs (in both sizes) exhibit higher catalytic activity than those of CuNi spherical NCs reported previously. It further indicates that the catalytic performance is strongly size-dependent due to their devise specific surface areas of the exposed crystallographic planes.

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Copyright © Materials Research Society 2019 

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Size-Controlled Synthesis of CuNi Nano-Octahedra and Their Catalytic Performance towards 4-Nitrophenol Reduction Reaction
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