用于高性能超级电容器电极的羧基化多壁碳纳米管/聚苯胺复合材料

IF 1.8 3区 材料科学 Q3 MATERIALS SCIENCE, COMPOSITES
Yanmin Wang, Yuansong Xiao, Xuelian Wu, Tingxi Li, Yong Ma
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引用次数: 1

摘要

采用原位化学氧化聚合方法制备了多壁碳纳米管(MWCNT)/聚苯胺(PANI)复合材料和羧化多壁碳纳米管(MWCNT-COOH)/聚苯胺复合材料。分别用X射线衍射(XRD)、傅立叶变换红外光谱(FT-IR)和场发射扫描电子显微镜(FESEM)研究了复合材料的结晶度、化学结构和形貌。基于不同的形貌,提出了复合材料的形成机理,并预测了形貌对电化学性能的影响。通过恒电流充放电(GCD)、循环伏安法(CV)和电化学阻抗谱(EIS)技术对复合材料的电化学性能进行了评价。MWCNT-COOH/PANI复合电极显示出比MWCNT/PANI复合电极更高的比电容,这可归因于MWCNT-COH/PANI复合体的互穿网络结构以及DBSA和MWCNT-COH的共掺杂。含有15%MWCNT-COOH的MWCNT-COH/PANI复合材料由于各组分的协同综合作用而表现出最佳的电化学性能。使用功能化MWCNT为制备用于电能存储领域的高性能复合材料提供了一种有效的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Carboxylated multi-walled carbon nanotube/polyaniline composites for high-performance supercapacitor electrodes
Multi-walled carbon nanotube (MWCNT)/polyaniline (PANI) composite and carboxylated multi-walled carbon nanotube (MWCNT-COOH)/PANI composites are fabricated via in situ chemical oxidative polymerization method. The crystallinity, chemical structure and morphology of the composites are investigated by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and field-emission scanning electron microscopy (FESEM), respectively. Based on the different morphology, the formation mechanism of the composites is proposed and the influence of the morphology on the electrochemical performance is predicted. The electrochemical properties of the composites are evaluated by galvanostatic charge/discharge (GCD), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. The MWCNT-COOH/PANI composite electrode shows higher specific capacitance than that of the MWCNT/PANI composite, as can be ascribed to the interpenetrating network structure of the MWCNT-COOH/PANI composite and the co-doping of DBSA and MWCNT-COOH. The MWCNT-COOH/PANI composite with 15% MWCNT-COOH presents the best electrochemical performance owing to the synergistic and comprehensive effect of the components. Using functionalized MWCNT provides an efficient approach to prepare high-performance composite materials for electrical energy storage fields.
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来源期刊
Advanced Composite Materials
Advanced Composite Materials 工程技术-材料科学:复合
CiteScore
5.00
自引率
20.70%
发文量
54
审稿时长
3 months
期刊介绍: "Advanced Composite Materials (ACM), a bi-monthly publication of the Japan Society for Composite Materials and the Korean Society for Composite Materials, provides an international forum for researchers, manufacturers and designers who are working in the field of composite materials and their structures. Issues contain articles on all aspects of current scientific and technological progress in this interdisciplinary field. The topics of interest are physical, chemical, mechanical and other properties of advanced composites as well as their constituent materials; experimental and theoretical studies relating microscopic to macroscopic behavior; testing and evaluation with emphasis on environmental effects and reliability; novel techniques of fabricating various types of composites and of forming structural components utilizing these materials; design and analysis for specific applications. Advanced Composite Materials publishes refereed original research papers, review papers, technical papers and short notes as well as some translated papers originally published in the Journal of the Japan Society for Composite Materials. Issues also contain news items such as information on new materials and their processing."
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