Creating a new electrode material of supercapacitors from the waste multi-walled carbon nanotubes

doi:10.1016/j.electacta.2019.135237

IR > 石油化工学院

	Creating a new electrode material of supercapacitors from the waste multi-walled carbon nanotubes
	Chen, Yong; Xu, Cheng; Zhao, Jiang; Huang, Jiandi; Xu, Hui; Gou, Guojun
	2020-01-10
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	330
摘要	Many adsorbents are discarded after removing pollutants, which always re-contaminateenvironment due to a release of pollutants again. The purpose of this study is to reuse the waste multi-walled carbon nanotubes (MWCNTs) who remove methylene blue (MB) from waste water as electrode material of supercapacitor. Herein, with a combination of polypyrrole (PPy), MWCNTs/MB/PPy composites are synthesized via chemical in-situ polymerization. The structure tests of the composites indicate that the surface property of MWCNTs, after adsorbing MB, is changed from hydrophobic to hydrophilic. Additionally, cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectrum (EIS) tests in three-electrode system demonstrate that at a current density of 5 mA cm(-2), the specific capacitance of MWCNTs/MB/PPy composites is 446 F g(-1). This result is higher than that of PPy and MWCNTs/PPy composites due to an extra pseudo-capacitance provided by MB. Moreover, a symmetric supercapacitor of MWCNTs/MB/PPy composites is assembled to successfully light a light emitting diodes (LED), which powerfully reveals the potential application of MWCNTs/MB/PPy composites. Obviously, the waste MWCNTs can be reused, meaning the dyes adsorbed on MWCNTs have no chance to pollute the environment again. (C) 2019 Elsevier Ltd. All rights reserved.
关键词	Adsorption Waste MWCNTs MWCNTs/MB/PPy composites Specific capacitance Symmetric supercapacitor
DOI	10.1016/j.electacta.2019.135237
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundations of China[51663014][51503092][51763015] ; Natural Science Foundation of Gansu Province[2017GS10857]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000501468400018
出版者	PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号	20194907788255
EI主题词	Multiwalled carbon nanotubes (MWCN)
EI分类号	444 Water Resources - 452.4 Industrial Wastes Treatment and Disposal - 701.1 Electricity: Basic Concepts and Phenomena - 761 Nanotechnology - 801.4.1 Electrochemistry - 802.3 Chemical Operations - 804.1 Organic Compounds - 815.1.1 Organic Polymers
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/64235
专题	石油化工学院
通讯作者	Chen, Yong; Xu, Hui
作者单位	Lanzhou Univ Technol, Coll Petrochem Engn, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	石油化工学院
通讯作者单位	石油化工学院
第一作者的第一单位	石油化工学院
推荐引用方式 GB/T 7714	Chen, Yong,Xu, Cheng,Zhao, Jiang,et al. Creating a new electrode material of supercapacitors from the waste multi-walled carbon nanotubes[J]. ELECTROCHIMICA ACTA,2020,330.
APA	Chen, Yong,Xu, Cheng,Zhao, Jiang,Huang, Jiandi,Xu, Hui,&Gou, Guojun.(2020).Creating a new electrode material of supercapacitors from the waste multi-walled carbon nanotubes.ELECTROCHIMICA ACTA,330.
MLA	Chen, Yong,et al."Creating a new electrode material of supercapacitors from the waste multi-walled carbon nanotubes".ELECTROCHIMICA ACTA 330(2020).