竹炭/聚苯胺复合材料作为超级电容器电极材料的研究  

Study of bamboo-based carbon/polyaniline composite used as supercapacitor electrode material

作　　者：方偎[1] 陈晓红[1] 宋怀河[1] 邵景春[2] 

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029 [2]国际竹藤网络中心,北京100102

出　　处：《炭素技术》2015年第3期14-17,26,共5页Carbon Techniques

基　　金："十一五"国家科技支撑计划项目(2008BADA9B05)

摘　　要：低温下采用动态界面法制备HCl掺杂态聚苯胺/竹炭复合材料,考察了竹炭(BC)和单体苯胺(An)不同质量比对电化学性能的影响。分别用扫描电镜(SEM)、红外光谱(IR)、热重分析(TG)表征了复合材料的形貌、表面官能团和热性能。通过恒流充放电和循环伏安、交流阻抗测试研究聚苯胺/竹炭复合材料作为超级电容器负极材料时的电化学性能。结果表明:复合材料的热稳定性良好,有短棒和球形形貌的聚苯胺,直径分别在100 nm和0.5μm左右,且当m(BC)∶m(An)=6∶4时复合材料的首次比容量高达269 F/g,100次循环稳定后维持在153 F/g,而纯竹炭和纯聚苯胺在经过100次充放电后分别稳定在93 F/g和7 F/g。复合材料显示了很好的电化学性能。Bamboo-based carbon/polyaniline（BC/PANI） composites were prepared by dynamic interfacial polymerization under low temperature. The electrochemical behaviors of BC/PANI composites with different mass percentage were studied.The morphology,functional group and thermal properties of this composite were investigated by SEM, IR and TG, respectively. The electrochemical properties of BC/PANI used as supercapacitor electrode materials were investigatd by galvanostatic charge-discharge, cyclic voltammetry（CV） and alternating current impedance（AC） measurements. It was found that the composite exhibits good thermal stability. The PANI exhibits rod and sphere morphologies with the diameters of around 100 nm to 500 nm. When m（BC）∶m（An）=6∶4, the first specific capacitance of BC/PANI composites was as high as 269 F/g and retained 153 F/g after 100 charge-discharge cycles, compared to 93 F/g of pure BC and 7 F/g of pure PANI. The composite showed good electrochemical performance.

关 键 词：竹炭 聚苯胺 超级电容器 电化学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]