3D Porous Ti 3 C 2 MXene/NiCo-MOF Composites for Enhanced Lithium Storage

To improve Li storage capacity and the structural stability of Ti C MXene-based electrode materials for lithium-ion batteries (LIBs), a facile strategy is developed to construct three-dimensional (3D) hierarchical porous Ti C /bimetal-organic framework (NiCo-MOF) nanoarchitectures as anodes for high...

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Bibliographic Details
Published inNanomaterials (Basel, Switzerland) Vol. 10; no. 4
Main Authors Liu, Yijun, He, Ying, Vargun, Elif, Plachy, Tomas, Saha, Petr, Cheng, Qilin
Format Journal Article
LanguageEnglish
Published Switzerland 07.04.2020
Subjects
3D porous composite
lithium ion batteries
MXene
NiCo-MOF
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Summary:To improve Li storage capacity and the structural stability of Ti C MXene-based electrode materials for lithium-ion batteries (LIBs), a facile strategy is developed to construct three-dimensional (3D) hierarchical porous Ti C /bimetal-organic framework (NiCo-MOF) nanoarchitectures as anodes for high-performance LIBs. 2D Ti C nanosheets are coupled with NiCo-MOF nanoflakes induced by hydrogen bonds to form 3D Ti C /NiCo-MOF composite films through vacuum-assisted filtration technology. The morphology and electrochemical properties of Ti C /NiCo-MOF are influenced by the mass ratio of MOF to Ti C . Owing to the interconnected porous structures with a high specific surface area, rapid charge transfer process, and Li diffusion rate, the Ti C /NiCo-MOF-0.4 electrode delivers a high reversible capacity of 402 mAh g at 0.1 A g after 300 cycles; excellent rate performance (256 mAh g at 1 A g ); and long-term stability with a capacity retention of 85.7% even after 400 cycles at a high current density, much higher than pristine Ti C MXene. The results highlight that Ti C /NiCo-MOF have great potential in the development of high-performance energy storage devices.
ISSN:2079-4991
2079-4991