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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received January 21, 2019
Accepted April 9, 2019
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Composition modulation of Cu/Cu2O/CuO nanoparticles supported on carbon for p-nitrophenol reduction

College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun Liaoning 113001, P. R. China
lqm_dicp@163.com
Korean Journal of Chemical Engineering, June 2019, 36(6), 851-859(9), 10.1007/s11814-019-0275-1
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Abstract

Porous carbon supported Cu/Cu2O/CuO ternary catalysts were fabricated by pyrolysis, in which composition modulation of Cu/Cu2O/CuO was successfully realized by adjusting annealing atmosphere. The correlation between annealing atmosphere and composition of Cu/Cu2O/CuO ternary nanoparticles was deeply investigated. XRD and SEM measurement shows that the composition proportion of Cu/Cu2O/CuO can be effectively controlled by adjusting the annealing atmosphere. HR-TEM and EDS analysis showed that Cu/Cu2O/CuO ternary nanoparticles are highly dispersed into the carbon matrix and harvest more hetero-junction active sites. The effect of Cu/Cu2O/CuO composition on their catalytic activity was investigated in catalytic reduction from p-nitrophenol to p-aminophenol. The experimental result indicated that the catalytic activity of Cu/Cu2O/CuO ternary catalysts exhibits higher catalytic activity than Cu2O/CuO or CuO particles. This work provides a new strategy for synthesizing and modulating porous carbon-supported Cu/Cu2O/CuO ternary nanoparticles.

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