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

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; Qichun Zhang

doi:10.1016/j.nanoen.2017.08.038

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

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^*, Qichun Zhang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

172 Citations (Scopus)

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.

Original language	English
Pages (from-to)	117-127
Journal	Nano Energy
Volume	41
Online published	24 Aug 2017
DOIs	https://doi.org/10.1016/j.nanoen.2017.08.038
Publication status	Published - Nov 2017
Externally published	Yes

Research Keywords

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

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10.1016/j.nanoen.2017.08.038

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title = "Solution-processed nitrogen-rich graphene-like holey conjugated polymer for efficient lithium ion storage",

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 {\AA}). 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.",

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

author = "Zong-Qiong Lin and Jian Xie and Bo-Wei Zhang and Jie-Wei Li and Jiena Weng and Rong-Bin Song and Xiao Huang and Hao Zhang and Hai Li and Ye Liu and Xu, {Zhichuan J.} and Wei Huang and Qichun Zhang",

year = "2017",

month = nov,

doi = "10.1016/j.nanoen.2017.08.038",

language = "English",

volume = "41",

pages = "117--127",

journal = "Nano Energy",

issn = "2211-2855",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Solution-processed nitrogen-rich graphene-like holey conjugated polymer for efficient lithium ion storage

AU - Lin, Zong-Qiong

AU - Xie, Jian

AU - Zhang, Bo-Wei

AU - Li, Jie-Wei

AU - Weng, Jiena

AU - Song, Rong-Bin

AU - Huang, Xiao

AU - Zhang, Hao

AU - Li, Hai

AU - Liu, Ye

AU - Xu, Zhichuan J.

AU - Huang, Wei

AU - Zhang, Qichun

PY - 2017/11

Y1 - 2017/11

N2 - 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.

AB - 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.

KW - 2D holey conjugated polymer (HCP)

KW - Electrochemistry

KW - Graphene-like

KW - Li-ion batteries

KW - Microporous materials

KW - 2D holey conjugated polymer (HCP)

KW - Electrochemistry

KW - Graphene-like

KW - Li-ion batteries

KW - Microporous materials

KW - 2D holey conjugated polymer (HCP)

KW - Electrochemistry

KW - Graphene-like

KW - Li-ion batteries

KW - Microporous materials

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85029468139&origin=recordpage

U2 - 10.1016/j.nanoen.2017.08.038

DO - 10.1016/j.nanoen.2017.08.038

M3 - RGC 21 - Publication in refereed journal

SN - 2211-2855

VL - 41

SP - 117

EP - 127

JO - Nano Energy

JF - Nano Energy

ER -

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

Abstract

Research Keywords

UN SDGs

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