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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Published in | Nanomaterials (Basel, Switzerland) Vol. 10; no. 4 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Switzerland
07.04.2020
|
Subjects | |
Online Access | Get full text |
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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. |
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ISSN: | 2079-4991 2079-4991 |