Synthesis of cobalt-based layered coordination polymer nanosheets and their application in lithium-ion batteries as anode materials

Cobalt-based layered coordination polymer ([Co(tfbdc)(4,4′-bpy)(H 2 O) 2 ] Co-LCP) nanosheets have been synthesized by a solvothermal method (H 2 tfbdc = tetrafluoroterephthalic acid, 4,4′-bpy = 4,4′-bipyridine). Powder X-ray diffraction, elemental analysis, IR spectra, thermogravimetric analysis, s...

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Bibliographic Details
Published in:RSC advances 2016-01, Vol.6 (6), p.4442-4447
Main Authors: Shi, Changdong, Xia, Qinghong, Xue, Xin, Liu, Qi, Liu, Hong-Jiang
Format: Article
Language:English
Subjects:
Anodes
Cobalt
Coordination polymers
Lithium-ion batteries
Nanostructure
Rechargeable batteries
Scanning electron microscopy
Transmission electron microscopy
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Summary:Cobalt-based layered coordination polymer ([Co(tfbdc)(4,4′-bpy)(H 2 O) 2 ] Co-LCP) nanosheets have been synthesized by a solvothermal method (H 2 tfbdc = tetrafluoroterephthalic acid, 4,4′-bpy = 4,4′-bipyridine). Powder X-ray diffraction, elemental analysis, IR spectra, thermogravimetric analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and the Brunauer-Emmett-Teller (BET) surface measurements were used to characterize the material. As an anode material for lithium-ion batteries, the Co-LCP nanosheets electrode exhibits higher reversible capacity and excellent cyclic stability, retaining 545 mA h g −1 after 50 cycles at a current density of 50 mA g −1 . Layered cobalt-based coordination polymer ([Co(tfbdc) (4,4′-bpy)(H 2 O) 2 ], Co-LCP) nanosheets have been synthesized, which show an excellent performance as anode materials for lithium ion batteries.
ISSN:2046-2069
2046-2069
DOI:10.1039/c5ra22038f