碳纳米管网/聚苯胺复合材料的制备及电化学储能性能  

Preparation and Electrochemical Energy Storage Performances of Carbon Nanotube Network/Polyaniline Composite

作　　者：江奇[1] 陈建康[1] 陈姿[1] 和腊梅[1] 卢晓英[1] 胡爱琳[1] 

机构地区：[1]西南交通大学超导与新能源研发中心,材料先进技术教育部重点实验室,成都610031

出　　处：《高等学校化学学报》2016年第1期73-78,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:50907056);四川省科技创新苗子工程项目(批准号:2014-071);成都市惠民科技计划项目(批准号:2014-HM01-00073-SF)资助~~

摘　　要：分别采用粉末碳纳米管(CNT)和带连接点的碳纳米管网(CNTN)为模板,通过与聚苯胺(PANI)有限域聚合得到了CNT/PANI和CNTN/PANI 2种复合材料.采用透射电子显微镜和扫描电子显微镜对材料的形貌进行了表征,采用氮气吸附-脱附分析研究了材料的孔结构参数,运用双电四探针测试仪对材料的导电性能进行了测试,利用恒流充放电、循环伏安、循环寿命及交流阻抗等电化学测试手段表征了材料的电化学储能性能.结果表明,CNTN/PANI复合材料比CNT/PANI复合材料表现出更好的导电性能和电化学储能性能,其放电比容量可达到143.2 F/g(有机电解液).Using the carbon nanotube（ CNT） powder and carbon nanotube network（ CNTN） as the template,CNT / polyaniline（ PANI） and CNTN / PANI composites were prepared via a PANI finite field polymerization method. The morphologies of the obtained samples were characterized by transmission electron microscope and scanning electron microscope. Nitrogen adsorption-desorption analysis was used to study the composites＇ pore structure data,and the four-probe conductivity meter was also used to study the samples＇ electric conductivity. The electrochemical energy storage performance of the obtained materials was characterized the cyclic voltammograms,galvanostatic charging / discharging curves,cycle life testing and electrochemical impedance spectroscopy. The results show that the obtained CNTN / PANI composite has higher electrochemical capacitance of 143. 2 F / g（ in organic electrolyte） and better electrical conductivity than the CNT / PANI,indicating that CNTN is more suitable to prepare composite with polymer than CNT powder since the CNTN has outstanding electrical conductivity,mechanical property and electrochemical energy storage property.

关 键 词：碳纳米管 碳纳米管网 有限域聚合 复合材料 电化学储能性能 

分 类 号：O641.1[理学—物理化学]