碳纳米管/聚苯胺空心球复合材料的制备与电化学性能  

Preparation of the carbon nanotube/polyaniline hollow sphere composite and its electrochemical performances

作　　者：赵晓锋[1] 江奇[1] 谢德钰[1] 张 蒋海春[1] 孙培秋[1] 赵勇[1,2] 

机构地区：[1]西南交通大学超导研究开发中心,材料先进技术教育部重点实验室,四川成都610031 [2]School of Materials Science and Engineering, University of New South Wales, Sydney, 2052 NSW, Australia

出　　处：《功能材料》2010年第11期1936-1939,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50907056,50872116);长江学者与创新团队计划资助项目(IRT0751);四川省科技攻关计划资助项目(2006Z02-006-1);四川省应用基础研究基金资助项目(2008JY0061);西南交通大学基础科学研究基金资助项目(2007B20);国家大学生创新实验计划资助项目(091061332)

摘　　要：以无机材料Fe3O4为模板,将在碳纳米管(CNT)功能化后,包裹在模板表面,然后再将苯胺单体接枝在CNT表面,之后采用化学氧化法,将接枝于CNT表面的苯胺单体聚合成聚苯胺(PANI),从而制备CNT/PANI空心球复合材料。用傅立叶变换红外光谱、扫描电子显微镜对复合材料进行成分和形貌的表征。用循环伏安法、恒流充放电和循环寿命等电化学测试手段来表征复合材料的电化学性能。研究结果表明所制备的复合材料比容量可达到185F/g(有机电解液),高于同样条件下所制备的纯PANI和采用一般方法所制备的CNT/PANI复合材料的电化学容量(65F/g,152F/g),显示出良好的应用前景。In this paper,the Fe3O4 was used as a template to prepare carbon nanotube（CNT）/polyaniline（PA-NI）composite.Firstly,the aniline was grafted on the surface of the CNT by series of organic chemistry reactions.The CNT was absorbed on the surface of the Fe3O4 oxide.Then,the aniline grafted on the CNT was polymerized to PANI by in-situ chemical polymerization.At last,a hollow sphere structure composite was obtained.The composition and the morphology of the obtained CNT/PANI composite were characterized by the Fourier transform infrared spectroscopy and scanning electron microscope.And the electrochemical performances of the obtained materials were tested by the cyclic voltammograms,galvanostatic charging/discharging,and cycle life testing.The researching results showed that the obtained CNT/PANI composite had high specific capacitance of 185F/g（in organic electrolyte）,which was much more than those of the pure PANI,and CNT/PANI composite by the organic chemistry method（about 65,152F/g）.And this material appeared excellent application foreground in electrochemical energy field.

关 键 词：聚苯胺/碳纳米管空心球 模板法 比容量 

分 类 号：O648[理学—物理化学] TM911[理学—化学]