负载银中空纳米碳纤维的制备及电化学性能

doi:10.11868/j.issn.1001-4381.2016.11.009

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摘要

为了提高碳基超级电容器电极的电化学性能，采用同轴静电纺丝和原位还原技术相结合的方法制备聚丙烯腈基（PAN-based）负载银纳米碳纤维，经过热处理后得到负载银的中空纳米碳纤维，考察了所制得负载银中空纳米碳纤维的形貌、结构及电化学性能。结果表明：原位还原技术能顺利将银颗粒成功负载到中空纳米碳纤维表面，且负载银有利于提高中空纳米碳纤维的电化学性能，表现为电化学反应可逆性和电容量均有所增加，电荷转移阻抗减小。

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	李甫
	康卫民
	程博闻
	费鹏飞
	董永春

关键词 ：同轴静电纺丝, 银, 纳米碳纤维, 超级电容器

Abstract：

Silver doped PAN-based hollow carbon nanofibers were prepared combining co-electrospinning with in situ reduction technique subsequently heat treatment to improve the electrochemical performances of carbon based supercapacitor electrodes. The morphology, structure and electrochemical performances of the resulted nanofiber were studied. The results show that the silver nanoparticles can be doped on the surface of hollow carbon nanofibers and the addition of silver favors the improvement of the electrochemical performances, exhibiting the enhanced reversibility of electrode reaction and the capacitance and the reduced charge transfer impedance.

Key words： Co-electrospinning silver carbon nanofiber supercapacitor

收稿日期: 2015-03-13 出版日期: 2016-11-22

中图分类号:

TQ342

基金资助:国家自然科学基金(51173131);天津市重点基金项目(13JCZDJC32500)

通讯作者: 程博闻 E-mail: bowen15@tjpu.edu.cn

作者简介: 程博闻(1963-), 男, 教授, 博士生导师, 从事新型碳纤维的研究, 联系地址:天津市天津工业大学(300387), E-mail:bowen15@tjpu.edu.cn

引用本文:

李甫, 康卫民, 程博闻, 费鹏飞, 董永春. 负载银中空纳米碳纤维的制备及电化学性能[J]. 材料工程, 2016, 44(11): 56-60.
Fu LI, Wei-min KANG, Bo-wen CHENG, Peng-fei FEI, Yong-chun DONG. Preparation and Electrochemical Properties of Silver Doped Hollow Carbon Nanofibers. Journal of Materials Engineering, 2016, 44(11): 56-60.

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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.11.009 或 http://jme.biam.ac.cn/CN/Y2016/V44/I11/56

Fig.1 纳米纤维的表面形貌(a), (b) SEM; (c) TEM

Fig.2 纳米纤维膜的FT-IR谱图

Fig.3 纳米纤维膜的XRD谱图

Fig.4 纳米纤维膜的循环伏安曲线

Fig.5 纳米纤维膜的交流阻抗曲线

Fig.6 纳米纤维膜的恒流充放电曲线

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