双表面活性剂软模板制备超级电容器用聚苯胺/碳纳米管复合材料  

Polyaniline/carbon nanotube composite materials prepared by soft template of double surfactants for supercapacitors

作　　者：梁华彬 何明基 钟新仙 杨智斌 梁世洪 李庆余 梁敏 LIANG Huabin;HE Mingji;ZHONG Xinxian;YANG Zhibin;LIANG Shihong;LI Qingyu;LIANG Min(College of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Guilin 541004,China;State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources,Guilin 541004,China;Guangxi Key Laboratory of Low Carbon Energy Materials,Guilin 541004,China;College of Chemistry and Food Science,Yulin Normal University,Yulin 53700,China)

机构地区：[1]广西师范大学化学与药学学院,广西桂林541004 [2]省部共建药用资源化学与药物分子工程国家重点实验室,广西桂林541004 [3]广西低碳能源材料重点实验室,广西桂林541004 [4]玉林师范学院化学与食品科学学院,广西玉林537006

出　　处：《功能材料》2024年第10期10211-10219,共9页Journal of Functional Materials

基　　金：国家自然科学基金项目(51964006,51474110);广西自然科学基金项目(2018GXNSFAA138136)。

摘　　要：采用乳液聚合法,以十二烷基苯磺酸钠(SDBS)和吐温-80(Tween-80)作为软模板,过硫酸铵(APS)为氧化剂,并掺入适量的碳纳米管(CNTs),制备得到PANI/CNTs复合材料。通过扫描电子显微镜(SEM)、X射线粉末衍射仪(XRD)和傅里叶红外光谱仪(FT-IR)等分析技术对复合材料进行了表征。结果表明,PANI/CNTs为核壳结构的复合材料,呈纤维状,PANI均匀包覆CNTs。电化学测试结果表明,在1.0 A/g的电流密度下,PANI/CNTs电极比电容是478.48 F/g;1000次循环后PANI/CNTs比电容保持率是70.01%,而传统方法制得的PANI只有49.10%。该方法制得的PANI/CNTs复合材料较传统方法获得的PANI单一材料的比电容高,且循环寿命明显提升。该方法为高性能超级电容器电极材料制取提供重要途径。In this paper,PANI/CNTs composite materials were prepared by emulsion polymerization with sodium dodecyl benzene sulfonate(SDBS)and Tween-80(Tween-80)as soft templates,ammonium persulfate(APS)as oxidant,and carbon nanotubes(CNTs)mixed with appropriate amount.The composite materials were characterized by scanning electron microscopy(SEM),X-ray powder diffraction(XRD)and Fourier transform infrared spectroscopy(FT-IR).The results show that PANI/CNTs composites present core-shell structure with fiber shape,and PANI materials cover the surface of CNTs uniformly.The electrochemical test results show that the specific capacitance of PANI/CNTs electrode is 478.48 F/g at the current density of 1.0 A/g.After 1000 cycles,the specific capacitance retention rate of PANI/CNTs is 70.01%,while that of PANI prepared by traditional method is only 49.10%.The specific capacitance of PANI/CNTs composites obtained by emulsion polymerization is higher than that of PANI single material obtained by traditional method,and the cycle life is significantly improved.This method provides an important strategy for the preparation of electrode materials of high-performance supercapacitors.

关 键 词：超级电容器 聚苯胺 碳纳米管 表面活性剂 乳液聚合法 

分 类 号：O633.21[理学—高分子化学]