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Nanostructured Metal–Organic Conjugated Coordination Polymers with Ligand Tailoring for Superior Rechargeable Energy Storage
Author(s) -
Xie Jian,
Cheng XueFeng,
Cao Xun,
He JingHui,
Guo Wei,
Li DongSheng,
Xu Zhichuan J.,
Huang Yizhong,
Lu JianMei,
Zhang Qichun
Publication year - 2019
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201903188
Subject(s) - conjugated system , materials science , electrochemistry , polymer , nanotechnology , metal , ligand (biochemistry) , combinatorial chemistry , electrode , chemical engineering , chemistry , metallurgy , engineering , composite material , biochemistry , receptor
Conjugated coordination polymers have become an emerging category of redox‐active materials. Although recent studies heavily focus on the tailoring of metal centers in the complexes to achieve stable electrochemical performance, the effect on different substitutions of the bridging bonds has rarely been studied. An innovative tailoring strategy is presented toward the enhancement of the capacity storage and the stability of metal–organic conjugated coordination polymers. Two nanostructured d‐π conjugated compounds, Ni[C 6 H 2 (NH) 4 ] n (Ni‐NH) and Ni[C 6 H 2 (NH) 2 S 2 ] n (Ni‐S), are evaluated and demonstrated to exhibit hybrid electrochemical processes. In particular, Ni‐S delivers a high reversible capacity of 1164 mAh g −1 , an ultralong stability up to 1500 cycles, and a fully recharge ability in 67 s. This tailoring strategy provides a guideline to design future effective conjugated coordination‐polymer‐based electrodes.