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Open AccessArticle

3D Porous Ti3C2 MXene/NiCo-MOF Composites for Enhanced Lithium Storage

by Yijun Liu 1, Ying He 1,2,*, Elif Vargun 2,3, Tomas Plachy 2, Petr Saha 2 and Qilin Cheng 1,2,*
Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
Sino-EU Joint Laboratory of New Energy Materials and Devices, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic
Department of Chemistry, Mugla Sitki Kocman University, 48000 Mugla, Turkey
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(4), 695;
Received: 11 March 2020 / Revised: 31 March 2020 / Accepted: 3 April 2020 / Published: 7 April 2020
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. View Full-Text
Keywords: MXene; NiCo-MOF; 3D porous composite; lithium ion batteries MXene; NiCo-MOF; 3D porous composite; lithium ion batteries
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Liu, Y.; He, Y.; Vargun, E.; Plachy, T.; Saha, P.; Cheng, Q. 3D Porous Ti3C2 MXene/NiCo-MOF Composites for Enhanced Lithium Storage. Nanomaterials 2020, 10, 695.

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