ZIF-8@MWCNT-derived carbon composite as electrode of high performance for supercapacitor

Yanfang Wang; Bingwei Chen; Yi Zhang; Lijun Fu; Yusong Zhu; Lixin Zhang; Yuping Wu

doi:10.1016/j.electacta.2016.07.019

ZIF-8@MWCNT-derived carbon composite as electrode of high performance for supercapacitor

Yanfang Wang, Bingwei Chen, Yi Zhang, Lijun Fu, Yusong Zhu, Lixin Zhang, Yuping Wu

School of energy science and engineering

Research output: Contribution to journal › Article › peer-review

146 Scopus citations

Abstract

Carbon materials from zeolitic imidazolate framework (ZIF) present poor electrochemical performance as electrode materials for supercapacitors. In this work, well-intergrown ZIF nanocystals are strung on MWCNTs to form necklace architecture. After carbonization and chemical etching, porous carbons with necklace architecture and proper hierarchical micro-mesoporous structure were obtained. It exhibits excellent electrochemical performance as electrode material for supercapacitor in 1 M H₂SO₄ solution such as high specific capacitance up to 326 F·g⁻¹ at 1 A·g⁻¹, good rate capability and excellent cycling stability of 99.7% capacitance retention after 10000 cycles. The main reasons are due to the increased surface area, the improved electrical conductivity, and the combination of micro- and meso-porous structure. This provides another promising way to design porous carbons from ZIF materials for supercapacitors.

Original language	English
Pages (from-to)	260-269
Number of pages	10
Journal	Electrochimica Acta
Volume	213
DOIs	https://doi.org/10.1016/j.electacta.2016.07.019
State	Published - 20 Sep 2016

Keywords

ZIF-8
porous carbon
supercapacitor
zeolitic imidazolate framework

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10.1016/j.electacta.2016.07.019

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title = "ZIF-8@MWCNT-derived carbon composite as electrode of high performance for supercapacitor",

abstract = "Carbon materials from zeolitic imidazolate framework (ZIF) present poor electrochemical performance as electrode materials for supercapacitors. In this work, well-intergrown ZIF nanocystals are strung on MWCNTs to form necklace architecture. After carbonization and chemical etching, porous carbons with necklace architecture and proper hierarchical micro-mesoporous structure were obtained. It exhibits excellent electrochemical performance as electrode material for supercapacitor in 1 M H2SO4 solution such as high specific capacitance up to 326 F·g−1 at 1 A·g−1, good rate capability and excellent cycling stability of 99.7% capacitance retention after 10000 cycles. The main reasons are due to the increased surface area, the improved electrical conductivity, and the combination of micro- and meso-porous structure. This provides another promising way to design porous carbons from ZIF materials for supercapacitors.",

keywords = "ZIF-8, porous carbon, supercapacitor, zeolitic imidazolate framework",

author = "Yanfang Wang and Bingwei Chen and Yi Zhang and Lijun Fu and Yusong Zhu and Lixin Zhang and Yuping Wu",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2016",

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doi = "10.1016/j.electacta.2016.07.019",

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T1 - ZIF-8@MWCNT-derived carbon composite as electrode of high performance for supercapacitor

AU - Wang, Yanfang

AU - Chen, Bingwei

AU - Zhang, Yi

AU - Fu, Lijun

AU - Zhu, Yusong

AU - Zhang, Lixin

AU - Wu, Yuping

PY - 2016/9/20

Y1 - 2016/9/20

N2 - Carbon materials from zeolitic imidazolate framework (ZIF) present poor electrochemical performance as electrode materials for supercapacitors. In this work, well-intergrown ZIF nanocystals are strung on MWCNTs to form necklace architecture. After carbonization and chemical etching, porous carbons with necklace architecture and proper hierarchical micro-mesoporous structure were obtained. It exhibits excellent electrochemical performance as electrode material for supercapacitor in 1 M H2SO4 solution such as high specific capacitance up to 326 F·g−1 at 1 A·g−1, good rate capability and excellent cycling stability of 99.7% capacitance retention after 10000 cycles. The main reasons are due to the increased surface area, the improved electrical conductivity, and the combination of micro- and meso-porous structure. This provides another promising way to design porous carbons from ZIF materials for supercapacitors.

AB - Carbon materials from zeolitic imidazolate framework (ZIF) present poor electrochemical performance as electrode materials for supercapacitors. In this work, well-intergrown ZIF nanocystals are strung on MWCNTs to form necklace architecture. After carbonization and chemical etching, porous carbons with necklace architecture and proper hierarchical micro-mesoporous structure were obtained. It exhibits excellent electrochemical performance as electrode material for supercapacitor in 1 M H2SO4 solution such as high specific capacitance up to 326 F·g−1 at 1 A·g−1, good rate capability and excellent cycling stability of 99.7% capacitance retention after 10000 cycles. The main reasons are due to the increased surface area, the improved electrical conductivity, and the combination of micro- and meso-porous structure. This provides another promising way to design porous carbons from ZIF materials for supercapacitors.

KW - ZIF-8

KW - porous carbon

KW - supercapacitor

KW - zeolitic imidazolate framework

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U2 - 10.1016/j.electacta.2016.07.019

DO - 10.1016/j.electacta.2016.07.019

M3 - 文章

AN - SCOPUS:84979671184

SN - 0013-4686

VL - 213

SP - 260

EP - 269

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

ZIF-8@MWCNT-derived carbon composite as electrode of high performance for supercapacitor

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Keywords

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