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铜基氧化物气凝胶的制备与表征

Synthesis and characterization of copper-based aerogels

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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.

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中图分类号:O648

DOI:10.3788/hplpb20112310.2650

所属栏目:ICF与激光等离子体

基金项目:中国工程物理研究院科学技术发展基金项目(2008A0302014)

收稿日期:2011-05-03

修改稿日期:2011-06-30

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毕于铁:中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900
任洪波:中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900
杨静:中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900
黄燕:中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900
张林:中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900

联系人作者:毕于铁(biyutie@yahoo.com.cn)

备注:毕于铁(1982—),男,博士研究生,研究方向为功能材料。

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引用该论文

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): 2650-2652

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): 2650-2652

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