氢键诱导的聚吡咯/苯磺酸功能化多壁碳纳米管的制备及其电化学行为  

Preparation of Polypyrrole/Benzenesulfonic Functionalized Multi-Walled Carbon Nanotubes Induced by Hydrogen Bonding and Their Electrochemical Behavior

作　　者：傅清宾[1] 高博[1] 苏凌浩[1] 原长洲[1] 卢向军[1] 张校刚[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016

出　　处：《物理化学学报》2009年第11期2199-2204,共6页Acta Physico-Chimica Sinica

基　　金：国家重点基础研究发展计划(2007CB209703);国家自然科学基金(20633040;20873064);南京航空航天大学研究生创新基金(BCXJ08-08)资助项目~~

摘　　要：采用原位芳基重氮化反应对碳纳米管进行苯磺酸功能化,进而制备了聚吡咯/苯磺酸化碳纳米管复合材料(PPy/f-MWCNTs),通过透射电镜(TEM)及扫描电镜(SEM)测试发现,氢键诱导使聚吡咯成功地包覆在碳纳米管表面.循环伏安和恒流充放电测试结果表明,复合材料具有良好的电化学电容性能,当聚吡咯与苯磺酸化碳纳米管质量比为1:1时,复合材料在1.0A·g-1的电流密度下的比容量达266F·g-1,而且聚吡咯利用率比未功能化聚吡咯/碳纳米管(PPy/p-MWCNTs)和纯聚吡咯(PPy)提高了1倍以上.Multi-walled carbon nanotubes were functionalized using in situ generated aryl diazonium and were then used to synthesize polypyrrole/benzenesulfonic functionalized multi-walled carbon nanotube composites（PPy/f-MWCNTs）.Transmission electron microscopy（TEM） and scanning electron microscopy（SEM） results indicated that a uniform PPy was successfully coated onto the sidewall of the f-MWCNTs,which was induced by hydrogen bonding.Cyclic voltammetry and galvanostatic charge/discharge measurements results showed that the composite possessed good electrochemical capacitive performance.The composite with m（PPy）：m（MWCNTs） of 1：1 had a capacity of 266 F·g^-1 at a current density of 1.0 A·g^-1,and the utilization of PPy was more than one time higher than polypyrrole/un-functionalized multi-walled carbon nanotube composites（PPy/p-MWCNTs） and pure PPy.

关 键 词：超级电容器 聚吡咯 碳纳米管 苯磺酸功能化 

分 类 号：TB383.1[一般工业技术—材料科学与工程]