文献类型：期刊文献

英文题名：S/N-codoped carbon nanotubes and reduced graphene oxide aerogel based supercapacitors working in a wide temperature range

作者：Lu, Zhenjie[1,3,5];Liu, Xuanli[1,3];Wang, Tao[2];Huang, Xinning[1];Dou, Jinxiao[1,3];Wu, Dongling[1,2];Yu, Jianglong[3];Wu, Shiyong[4];Chen, Xingxing[1,3]

机构：[1]Univ Sci & Technol Liaoning, Sch Chem Engn, Res Grp Funct Mat Electrochem Energy Convers, Qianshan Middle Rd 185, Anshan 114051, Liaoning, Peoples R China;[2]Xinjiang Univ, Coll Chem, State Key Lab Chem & Utilizat Carbon Based Energy, Urumqi 830046, Xinjiang, Peoples R China;[3]Univ Sci & Technol Liaoning, Sch Chem Engn, Key Lab Adv Coal & Coking Technol Liaoning Prov, Qianshan Middle Rd 185, Anshan 114051, Peoples R China;[4]East China Univ Sci & Technol, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China;[5]Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Peoples R China

年份：2023

卷号：638

起止页码：709

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20230713586745);WOS:【SCI-EXPANDED(收录号:WOS:000965476400001)】；

基金：The research reported in this work was supported by Open Foundation of State Key Laboratory of Chemistry and Utilization of Carbon-based Energy Resource of Xinjiang University (KFKT2021006) , Excellent Young Scientific and Technological Talents Project of Educational Department of Liaoning (2020LNQN07) , Natural Science Foundation of Liaoning Province (2022-MS-354) , Science and Technology Innovation Leading Talent Project of XingLiao Talent Plan of Liaoning (XLYC2002063) , and Open Foundation of Key Laboratory for Advanced Coal and Coking Technology of Liaoning Province, China (2022KFKT01) .

语种：英文

外文关键词：Carbon nanotubes (CNTs); Reduced graphene oxide (rGO); Supercapacitor; Wide temperature range; Deep eutectic solvent (DES)

摘要：Among many supercapacitor electrode materials, carbon materials are widely used due to their large specific surface area, good electrical conductivity and high economic efficiency. However, carbon -based supercapacitors face the challenges of low energy density and limited operating environment. This work reports a facile self-assembled method to prepare three-dimensional carbon nanotubes/re-duced graphene oxide (CNTs/rGO) aerogel material, which was applied as both positive and negative electrodes in a symmetric superacapacitor. The fabricated supercapacitor exhibited prominent capacitive performance not only at room temperature, but also at extreme temperatures (-20 ti 80 degrees C). The specific capacitances of the symmetric supercapacitors based on CNTs/rGO at a weight ratio of 2:5 respectively reached 107.8 and 128.2 F g-1 at 25 degrees C and 80 degrees C with KOH as the electrolyte, and 80.0 and 144.6 F g-1 at-20 degrees C and 60 degrees C with deep eutectic solvent as the electrolyte. Notably, the capacitance retention and coulombic efficiency of the assembled supercapacitors remained almost unchanged after 20,000 cycles of charge/discharge test over a wide temperature range. The work uncovered a possibility for the development of high-performance supercapacitors flexibly operated at extreme temperatures.(c) 2023 Elsevier Inc. All rights reserved.