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- In relation to this article, we declare that there is no conflict of interest.
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Received May 20, 2010
Accepted July 30, 2010
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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
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High catalytic performance of CuO nanocrystals with largest defects
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214000, China
Korean Journal of Chemical Engineering, February 2011, 28(2), 602-607(6), 10.1007/s11814-010-0395-0
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Abstract
To improve the calalytic performance of CuO, nanometer-sized CuO particles were prepared with ultrafiltration surface contact method (UMSCM). X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the crystal structure and morphology of the particles made with UMSCM, hydrothermal method, grounding method as well as a commercial one. SEM results illustrate that UMSCM prepared CuO particles mainly show the form of orthorhombic sliced crystals with the largest amounts of defects compared to CuO particles made by the other three methods. In the oxidation of cumene, CuO prepared with UMSCM also shows better catalytic performance than the other three particles, which can be ascribed to its smaller particle sizes and larger defects so as to accelerate the surface adsorption rate of O2 molecules and the diffusion of ions and atoms, thus improving the catalytic_x000D_
activity.
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