文献类型：期刊文献

中文题名：磺化碳纳米管改性聚苯胺复合材料的合成与超级电容特性

英文题名：SYNTHESIS AND SUPERCAPACITANCE PERFORMANCE OF SULFONATED CARBON NANOTUBES MODIFIED POLYANILINE COMPOSITES

作者：孙敏强[1];朱忠泽[1];李星玮[1];王庚超[1]

机构：[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室上海市先进聚合物材料重点实验室,上海200237

年份：2011

卷号：21

期号：6

起止页码：639

中文期刊名：高分子学报

外文期刊名：Acta Polymerica Sinica

收录：CSTPCD;;Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000292490100011)】；北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(基金号50773020);上海市纳米科技专项(项目号0852nm02000)资助

语种：中文

中文关键词：聚苯胺纳米棒;磺化碳纳米管;化学氧化聚合;超级电容器

外文关键词：PANI nanorods; Sulfonated carbon nanotubes; Chemical oxidative polymerization; Supercapacitors

摘要：运用重氮化技术制备了水溶性磺化碳纳米管,在此基础上,以不同直径的磺化碳纳米管(1～2 nm,<8 nm,10～20 nm,30～50 nm)为载体,采用原位氧化聚合方法合成了一系列磺化碳纳米管改性聚苯胺复合材料.红外和紫外-可见光谱分析表明,聚苯胺与磺化碳纳米管之间存在π-π相互作用,并形成了电荷转移复合物;且随着碳纳米管直径的减小,电荷转移复合物增多.从场发射扫描电镜照片发现,聚苯胺/磺化单壁碳纳米管(PANI/sSWCNT)复合材料为聚苯胺包覆纳米管束结构,而PANI/磺化多壁碳纳米管(sMWCNT)复合材料则呈现出聚苯胺包覆单根纳米管的形貌.循环伏安实验结果显示,与聚苯胺纳米棒相比(271 F/g),复合材料拥有更高的比电容(309～457 F/g),且随着碳纳米管直径的减小而增大;同时复合材料具有良好的快速充放电特性.
Water-soluble sulfonated carbon nanotubes were prepared by diazotization.On this basis,a series of sulfonated carbon nanotubes（1~2 nm,8 nm,10~20 nm,30~50 nm） modified polyaniline composites were synthesized successfully using in situ oxidative polymerization method.FTIR spectra shows that the intensity ratio of I1580/I1490 increases with the decrease of the diameters of CNTs.Simultaneously,it can be found from the UV-Vis spectra that the absorption peak around 800 nm of the composites blue-shifts compared to the polyaniline nanorods.Aforementioned results indicate that the presence of the π-π interaction between the PANI and the sulfonated carbon nanotubes,and the charge transfer composites are formed,which increase as the diameter of CNTs decreases.Field emission scanning electron microscope（FESEM） images show the PANI/sSWCNT composite displays the morphological structure of the bundle of nanotubes coated with PANI while the PANI/sMWCNT composites exhibit the morphology of single nanotube coated with PANI.And with the increase of the diameters of carbon nanotubes,the diameters of the PANI/sMWCNT composites thicken gradually.The cyclic voltammetry results demonstrate that the composites have higher specific capacitance（309~457 F/g） compared to the PANI nanorods（271 F/g）,and the specific capacitance of the composites increases with decreasing the diameter of CNTs.Moreover,the composites also have outstanding fast charge/discharge performance as electrode materials in the application of supercapacitors.