Synthesis of Copper Hydroxide Branched Nanocages and Their Transformation to Copper Oxide
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- 作者：Alec P. LaGrow ; Lutfan Sinatra ; Ahmed Elshewy ; Kuo-Wei Huang ; Khabiboulakh Katsiev ; Ahmad R. Kirmani ; Aram Amassian ; Dalaver H. Anjum ; Osman M. Bakr
- 刊名：Journal of Physical Chemistry C
- 出版年：2014
- 出版时间：August 21, 2014
- 年：2014
- 卷：118
- 期：33
- 页码：19374-19379
- 全文大小：466K
- ISSN：1932-7455
文摘
Copper oxide nanostructures have been explored in the literature for their great promise in the areas of energy storage and catalysis, which can be controlled based on their shape. Herein we describe the synthesis of complex branched nanocages of copper hydroxide with an alternating stacked morphology. The size of the nanocages鈥?core and the length of the branches can be controlled by the temperature and ratio of surfactant used, varying the length from 85 to 232 nm long, and varying the core size from 240 to 19 nm. The nanostructures鈥?unique morphology forms by controlling the growth of an initial spherical seed, and the crystallization of the anisotropic arms. The Cu(OH)2 nanostructures can be converted to polycrystalline CuO branched nanocages and Cu2O nanoframes. We show that the branched nanocage morphology of CuO has markedly superior catalytic properties to previous reports with CuO nanomaterials, resulting in a rapid and efficient catalyst for C鈥揝 coupling.