Synthesis of CuO nanorods and their catalytic activity in the thermal decomposition of ammonium Perchlorate

被引:272
作者
Chen, Lijuan
Li, Liping
Li, Guangshe [1 ]
机构
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
关键词
CuO nanorods; ammonium perchlorate; catalytic activity; thermal decomposition;
D O I
10.1016/j.jallcom.2007.10.058
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
CuO as-prepared samples were prepared at room temperature using the mixed water-ethanol solvents. After hydrothermal treatments on these samples at high temperatures, CuO nanorods were controlled to have surface areas ranging from 72.1 to 7.2 m2 g-1. All CuO nanorods were characterized by X-ray diffraction (XRD), thermogravimetric (TG) analysis coupled with differential thermal analysis (DTA), transmission electron microscope (TEM), Brunauer-Emmett-Teller (BET) technique, and Fourier transformation infrared spectroscopy (FTIR). CuO nanorods showed a surface hydration which was increased with decreasing the surface area. CuO nanorods were studied as an additive for promoting the thermal decomposition of ammonium perchlorate (AP). With the addition of CuO nanorods, thermal decomposition temperature of AP decreased. Large surface areas of CuO nanorods promoted AP decomposition, while surface hydration did not have any apparent influence. These observations were explained in terms of the surface O2- species that accelerate the proton transfer in AP decomposition. © 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:532 / 536
页数:5
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