强激光与粒子束, 2011, 23 (10): 2650, 网络出版: 2011-11-18
铜基氧化物气凝胶的制备与表征
Synthesis and characterization of copper-based aerogels
摘要
以CuCl2·2H2O为前躯体,环氧丙烷为凝胶促进剂,制得了铜基氧化物气凝胶。通过场发射扫描电镜、高分辨透射电镜、X射线衍射、红外谱图及N2吸附等方法,对气凝胶的结构进行了表征。结果表明:室温下合成的铜基氧化物气凝胶呈现3维网络状结构,其骨架由大量微小晶粒组成,颗粒粒径为几nm;随处理温度的升高,体系中的有机相逐渐被灼烧完全,气凝胶也由3维网络状结构转变为致密结构;气凝胶随温度升高不断变化,并最终生成氧化铜气凝胶。N2吸附结果表明气凝胶具有较高的比表面积,为386 m2/g。
Abstract
Copper-based aerogels were prepared by sol-gel method using inorganic salt as precursor and propylene oxide as gelation agent. The morphology of the copper-based aerogels was characterized by field-emission scanning electron microscope (FESEM) and high-resolution transmission electron microscopy (HRTEM), which suggests that the aerogels have a structure of 3-D networks and the skeleton is composed of CuO particles. The X-ray diffraction(XRD) results indicate that, the calcination of the aerogels at higher temperatures induces a phase change which results in the formation of copper oxide aerogels. The N2 adsorption/desorption result shows that the copper-based aerogels have a high specific surface area of about 386 m2/g.
毕于铁, 任洪波, 杨静, 黄燕, 张林. 铜基氧化物气凝胶的制备与表征[J]. 强激光与粒子束, 2011, 23(10): 2650. Bi Yutie, Ren Hongbo, Yang Jing, Huang Yan, Zhang Lin. Synthesis and characterization of copper-based aerogels[J]. High Power Laser and Particle Beams, 2011, 23(10): 2650.