Graphene wrapped MXene via plasma exfoliation for all-solid-state flexible supercapacitors

被引:140
作者
Wang, Keliang [1 ,2 ,3 ]
Zheng, Bocong [1 ,2 ,3 ]
Mackinder, Madeline [2 ,3 ]
Baule, Nina [1 ]
Qiao, Hui [4 ]
Jin, Hong [5 ]
Schuelke, Thomas [2 ,3 ]
Fan, Qi Hua [2 ,3 ]
机构
[1] Michigan State Univ, Ctr Coatings & Diamond Technol, Fraunhofer USA Inc, E Lansing, MI 48824 USA
[2] Michigan State Univ, Dept Elect Engn & Comp Engn, E Lansing, MI 48824 USA
[3] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA
[4] Jiangnan Univ, Key Lab Ecotext, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China
[5] Xi An Jiao Tong Univ, Suzhou Res Inst, Suzhou 215123, Peoples R China
基金
美国国家科学基金会;
关键词
Plasma; MXene; Flexible; Solid-state; Supercapacitor; TRANSITION-METAL CARBIDES; HIGH-POWER; ELECTRODE MATERIAL; CARBON; DELAMINATION; DESIGN; TI2CTX; TI;
D O I
10.1016/j.ensm.2019.04.029
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Two dimensional transition metal carbides and nitrides, known as MXenes, are promising materials for energy storage. Although superior capacitance performance has been demonstrated using MXene electrodes in supercapacitors, the relatively high resistance and inefficient separation process limit the materials applications. This work reports an innovative facile method combined with plasma exfoliation to fabricating graphene-wrapped MXene. This method includes two key aspects: 1) incorporating graphite oxide (GO) into MXene, and 2) plasma exfoliating of GO-modified MXene. The resulting materials, denoted as MXene@rGO, have a layered structure with reduced graphene on the MXene surfaces. All-solid-state flexible supercapacitors have been fabricated using the MXene@rGO materials. Comparing to regular MXene, the MXene@rGO supercapacitors exhibited two times higher specific capacitance as well as excellent charge/discharge and mechanical stability. This research has the potential to lead to the development of new electrode materials that significantly promote the capacity of energy storage.
引用
收藏
页码:299 / 306
页数:8
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