文献类型：期刊文献

英文题名：3D Porous Ti3C2 MXene/NiCo-MOF Composites for Enhanced Lithium Storage

作者：Liu, Yijun[1];He, Ying[1,2];Vargun, Elif[2,3];Plachy, Tomas[2];Saha, Petr[2];Cheng, Qilin[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Tomas Bata Univ Zlin, Sino EU Joint Lab New Energy Mat & Devices, Zlin 76001, Czech Republic;[3]Mugla Sitki Kocman Univ, Dept Chem, TR-48000 Mugla, Turkey

年份：2020

卷号：10

期号：4

外文期刊名：NANOMATERIALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000539577200098)】；

基金：This work was supported by the National Natural Science Foundation of China (51702098); the National Key R&D Program of China (2016YFE0131200); and the International Cooperation Project of Shanghai Municipal Science and Technology Committee (18520744400).

语种：英文

外文关键词：MXene; NiCo-MOF; 3D porous composite; lithium ion batteries

摘要：To improve Li storage capacity and the structural stability of Ti3C2 MXene-based electrode materials for lithium-ion batteries (LIBs), a facile strategy is developed to construct three-dimensional (3D) hierarchical porous Ti3C2/bimetal-organic framework (NiCo-MOF) nanoarchitectures as anodes for high-performance LIBs. 2D Ti3C2 nanosheets are coupled with NiCo-MOF nanoflakes induced by hydrogen bonds to form 3D Ti3C2/NiCo-MOF composite films through vacuum-assisted filtration technology. The morphology and electrochemical properties of Ti3C2/NiCo-MOF are influenced by the mass ratio of MOF to Ti3C2. Owing to the interconnected porous structures with a high specific surface area, rapid charge transfer process, and Li+ diffusion rate, the Ti3C2/NiCo-MOF-0.4 electrode delivers a high reversible capacity of 402 mAh g(-1)-at 0.1 A g(-1)-after 300 cycles; excellent rate performance (256 mAh g(-1)-at 1 A g(-1)); and long-term stability with a capacity retention of 85.7% eVen after 400 cycles at a high current density, much higher than pristine Ti3C2 MXene. The results highlight that Ti3C2/NiCo-MOF have great potential in the development of high-performance energy storage devices.