Solution-processed nitrogen-rich graphene-like holey conjugated polymer for efficient lithium ion storage

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Zong-Qiong Lin
  • Jian Xie
  • Bo-Wei Zhang
  • Jie-Wei Li
  • Jiena Weng
  • Rong-Bin Song
  • Xiao Huang
  • Hao Zhang
  • Hai Li
  • Ye Liu
  • Zhichuan J. Xu
  • Wei Huang

Detail(s)

Original languageEnglish
Pages (from-to)117-127
Journal / PublicationNano Energy
Volume41
Online published24 Aug 2017
Publication statusPublished - Nov 2017
Externally publishedYes

Abstract

Preparing well-defined single-layer two-dimensional (2D) holey conjugated polymers (HCP) is very challenging. Here, we report a bottom-up method to produce free-standing single-layer nitrogen-rich graphene-like holey conjugated polymers (NG-HCP) nanosheets through solution-process. The as-prepared 2D NG-HCP sheet possesses a thickness of 1.0 ± 0.2 nm and consists of graphene-like subunits as well as homogeneous hexagonal micropores (ca. 11.65 Å). The synergistic effect of high porosity, heteroatomic doping and good dispersity of NG-HCP nanosheets make them suitable as excellent anode materials for Li-ion batteries (LIBs), leading to an extremely high reversible capacity of 1320 mAh g−1 (at 20 mA g−1), a good rate performance, and an excellent cycle life with an approximate 100% Coulombic efficiency for more than 600 cycles. Our findings would open new opportunities to develop state-of-the-art free-standing 2D-HCP materials for low-cost and high performance energy storage as well as optoelectronic devices.

Research Area(s)

  • 2D holey conjugated polymer (HCP), Electrochemistry, Graphene-like, Li-ion batteries, Microporous materials

Citation Format(s)

Solution-processed nitrogen-rich graphene-like holey conjugated polymer for efficient lithium ion storage. / Lin, Zong-Qiong; Xie, Jian; Zhang, Bo-Wei; Li, Jie-Wei; Weng, Jiena; Song, Rong-Bin; Huang, Xiao; Zhang, Hao; Li, Hai; Liu, Ye; Xu, Zhichuan J.; Huang, Wei; Zhang, Qichun.

In: Nano Energy, Vol. 41, 11.2017, p. 117-127.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review