19January2018

Nano-Micro Letters

One-pot Synthesis of Co-based Coordination Polymer Nanowire for Li-ion Batteries with Great Capacity and Stable Cycling Stability

Peng Wang1, Xiaobing Lou1, Chao Li1, Xiaoshi Hu1, Qi Yang1, *, Bingwen Hu1

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Nano-Micro Lett. (2018) 10: 19

First Online: 14 November 2017 (Article)

DOI:10.1007/s40820-017-0177-x

*Corresponding author. E-mail: qyang@lps.ecnu.edu.cn

 

Abstract

 


Fig. 1 a FTIR spectra of Co-BDCN-24h, Co-BDCN-3h, terephthalamide, and terephthalonitrile. b 1H NMR spectra of Co-BDCN-24h, Co-BDCN-3h, terephthalamide, and terephthalonitrile (dissolved in DMSO-d6 liquids) and DMSO-d6 in liquid state. c Solid-state 13C NMR spectra of Co-BDCN-24h. d TG curves of Co-BDCN-24h

Nanowire coordination polymer Cobalt-Terephthalonitrile (Co-BDCN) was successfully synthesized using a simple solvothermal method and applied as anode material for lithium-ion batteries (LIBs). A reversible capacity of 1132 mAh g-1 was retained after 100 cycles at a rate of 100 mA g-1, which should be one of the best LIBs performances among metal organic frameworks (MOFs) and coordination polymers (CPs) based anode materials at such a rate. On the basis of the comprehensive structural and morphology characterizations including fourier transform infrared spectoscopy (FT-IR), 1H NMR, 13C NMR, scanning electron microscopy (SEM, we demonstrated that the great electrochemical performance of the as-synthesized Co-BDCN coordination polymer can be attributed to the synergistic effect of metal centers and organic ligands, as well as the stability of the nanowire morphology during cycling.


 

Keywords

Nanowire; Coordination polymer; Lithium-ion battery; Anode; Ultra-high capacity

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