Covalent-architected molybdenum disulfide arrays on Ti3C2Tx MXene fiber towards robust capacitive energy storage

被引：34

作者：

Sun, Suya ^{[1
]}

Zhu, Xiaolin ^{[1
,2
]}

Wu, Xingjiang ^{[3
]}

Xu, Meigui ^{[1
]}

Hu, Ying ^{[4
]}

Bao, Ningzhong ^{[1
]}

Wu, Guan ^{[1
,2
]}

机构：

[1] Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China

[2] Zhejiang Sci Tech Univ, Natl Engn Lab Text Fiber Mat & Proc Technol, Sch Mat Sci & Engn, Hangzhou 310018, Peoples R China

[3] Tsinghua Univ, Dept Chem Engn, State Key Lab Chem Engn, Beijing 100084, Peoples R China

[4] Hefei Univ Technol, Inst Ind & Equipment Technol, Hefei 230009, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2023年 / 139卷

基金：

中国国家自然科学基金;

关键词：

Molybdenum disulfide; Ti 3 C 2 T x fiber; Covalent-architecture; Supercapacitors; High energy density; SUPERCAPACITOR; PERFORMANCE; OXIDE; FABRICATION; COMPOSITE; ELECTRODE;

D O I：

10.1016/j.jmst.2022.08.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ti3C2Tx MXene fiber has shown extraordinary potential for supercapacitor electrode in wearable elec-tronics and textile energy storage, but realizing high energy density and practical-powered applications remains a great challenge. Here, we report a covalent-architected molybdenum disulfide-Ti3C2Tx (MoS2 -Ti3C2Tx) core-shell fiber for high-performance supercapacitor. Benefiting from the microfluidic and micro -reaction strategies, the ordered MoS2 arrays are strongly bridged on Ti3C2Tx fiber via Ti-O-Mo bond, re-sulting in large exposed surface, enhanced porosity and excellent interfacial conduction for charges high diffusion and faradaic transfer. The MoS2-Ti3C2Tx fiber exhibits ultra-large capacitance of 2028 F cm -3 and admirable reversibility in 1 M H2SO4 aqueous electrolyte. Meanwhile, MoS2-Ti3C2Tx fiber-based solid-state supercapacitor presents high energy density of 23.86 mWh cm -3, capacitance of 1073.6 F cm -3 and superior cycling ability of 92.13% retention after 20,0 0 0 cycles, which can realize stable energy supply for wearable watch, LEDs, electric fans, toy ship and self-powered devices. Our work may provide an insight-ful guidance for the advanced design of structural fiber towards robust new energy and next-generation wearable industry.(c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.

引用

页码：23 / 30

页数：8

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