Zeolitic imidazolate framework-7 textile-derived nanocomposite fibers as freestanding supercapacitor electrodes

Bhavana Joshi; Sera Park; Edmund Samuel; Hong Seok Jo; Seongpil An; Min Woo Kim; Mark T. Swihart; Je Moon Yun; Kwang Ho Kim; Sam S. Yoon

doi:10.1016/j.jelechem.2018.01.012

Zeolitic imidazolate framework-7 textile-derived nanocomposite fibers as freestanding supercapacitor electrodes

Bhavana Joshi, Sera Park, Edmund Samuel, Hong Seok Jo, Seongpil An, Min Woo Kim, Mark T. Swihart, Je Moon Yun, Kwang Ho Kim, Sam S. Yoon

School of Mechanical Engineering

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

32 Citations (Scopus)

Abstract

Zeolitic imidazole frameworks (ZIFs) are a class of metal organic frameworks (MOFs) with diverse energy-related applications. High-surface area materials derived from ZIFs can serve as electrodes with good long-term capacity retention. Herein, we demonstrate an electrospun ZIF7/carbon nanofiber (CNF) derived nanocomposite as a freestanding electrode for supercapacitors with excellent capacitance retention. The optimal ZIF7 composite nanofiber carbonized at 950 °C exhibited a specific capacitance of 202 F·g⁻¹ at a current density of 1 A·g⁻¹ and ~98% specific capacitance retention after 5000 charge–discharge cycles. N-doped nanoporous C and the Zn framework of ZIF7 composite fibers delivered an energy density of 42 W·h·kg⁻¹ at a power density of 0.6 kW·kg⁻¹. These scalable ZIF7/CNF composite textiles (30 × 10 cm²) can be used as freestanding supercapacitor electrodes without a separate substrate or current collector.

Original language	English
Pages (from-to)	239-247
Number of pages	9
Journal	Journal of Electroanalytical Chemistry
Volume	810
DOIs	https://doi.org/10.1016/j.jelechem.2018.01.012
Publication status	Published - 2018 Feb 1

Keywords

Electrospinning
Metal-organic frameworks
Nanoporous carbon
Supercapacitor
ZIF7

ASJC Scopus subject areas

Analytical Chemistry
Chemical Engineering(all)
Electrochemistry

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10.1016/j.jelechem.2018.01.012

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@article{2017b53b791e4cb28401a0e17117eec2,

title = "Zeolitic imidazolate framework-7 textile-derived nanocomposite fibers as freestanding supercapacitor electrodes",

abstract = "Zeolitic imidazole frameworks (ZIFs) are a class of metal organic frameworks (MOFs) with diverse energy-related applications. High-surface area materials derived from ZIFs can serve as electrodes with good long-term capacity retention. Herein, we demonstrate an electrospun ZIF7/carbon nanofiber (CNF) derived nanocomposite as a freestanding electrode for supercapacitors with excellent capacitance retention. The optimal ZIF7 composite nanofiber carbonized at 950 °C exhibited a specific capacitance of 202 F·g−1 at a current density of 1 A·g−1 and ~98% specific capacitance retention after 5000 charge–discharge cycles. N-doped nanoporous C and the Zn framework of ZIF7 composite fibers delivered an energy density of 42 W·h·kg−1 at a power density of 0.6 kW·kg−1. These scalable ZIF7/CNF composite textiles (30 × 10 cm2) can be used as freestanding supercapacitor electrodes without a separate substrate or current collector.",

keywords = "Electrospinning, Metal-organic frameworks, Nanoporous carbon, Supercapacitor, ZIF7",

author = "Bhavana Joshi and Sera Park and Edmund Samuel and Jo, {Hong Seok} and Seongpil An and Kim, {Min Woo} and Swihart, {Mark T.} and Yun, {Je Moon} and Kim, {Kwang Ho} and Yoon, {Sam S.}",

note = "Funding Information: This study was supported by a National Research Foundation of Korea (NRF) grant, funded by the Korean Government (MEST, 2016R1A2B3009481 ). This research was also supported by NRF-2016M1A2A2936760 , NRF-2013M3A6B1078879 , and NRF-2017R1A2B4005639 . Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = feb,

day = "1",

doi = "10.1016/j.jelechem.2018.01.012",

language = "English",

volume = "810",

pages = "239--247",

journal = "Journal of Electroanalytical Chemistry",

issn = "1572-6657",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Zeolitic imidazolate framework-7 textile-derived nanocomposite fibers as freestanding supercapacitor electrodes

AU - Joshi, Bhavana

AU - Park, Sera

AU - Samuel, Edmund

AU - Jo, Hong Seok

AU - An, Seongpil

AU - Kim, Min Woo

AU - Swihart, Mark T.

AU - Yun, Je Moon

AU - Kim, Kwang Ho

AU - Yoon, Sam S.

N1 - Funding Information: This study was supported by a National Research Foundation of Korea (NRF) grant, funded by the Korean Government (MEST, 2016R1A2B3009481 ). This research was also supported by NRF-2016M1A2A2936760 , NRF-2013M3A6B1078879 , and NRF-2017R1A2B4005639 . Publisher Copyright: © 2018

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Zeolitic imidazole frameworks (ZIFs) are a class of metal organic frameworks (MOFs) with diverse energy-related applications. High-surface area materials derived from ZIFs can serve as electrodes with good long-term capacity retention. Herein, we demonstrate an electrospun ZIF7/carbon nanofiber (CNF) derived nanocomposite as a freestanding electrode for supercapacitors with excellent capacitance retention. The optimal ZIF7 composite nanofiber carbonized at 950 °C exhibited a specific capacitance of 202 F·g−1 at a current density of 1 A·g−1 and ~98% specific capacitance retention after 5000 charge–discharge cycles. N-doped nanoporous C and the Zn framework of ZIF7 composite fibers delivered an energy density of 42 W·h·kg−1 at a power density of 0.6 kW·kg−1. These scalable ZIF7/CNF composite textiles (30 × 10 cm2) can be used as freestanding supercapacitor electrodes without a separate substrate or current collector.

AB - Zeolitic imidazole frameworks (ZIFs) are a class of metal organic frameworks (MOFs) with diverse energy-related applications. High-surface area materials derived from ZIFs can serve as electrodes with good long-term capacity retention. Herein, we demonstrate an electrospun ZIF7/carbon nanofiber (CNF) derived nanocomposite as a freestanding electrode for supercapacitors with excellent capacitance retention. The optimal ZIF7 composite nanofiber carbonized at 950 °C exhibited a specific capacitance of 202 F·g−1 at a current density of 1 A·g−1 and ~98% specific capacitance retention after 5000 charge–discharge cycles. N-doped nanoporous C and the Zn framework of ZIF7 composite fibers delivered an energy density of 42 W·h·kg−1 at a power density of 0.6 kW·kg−1. These scalable ZIF7/CNF composite textiles (30 × 10 cm2) can be used as freestanding supercapacitor electrodes without a separate substrate or current collector.

KW - Electrospinning

KW - Metal-organic frameworks

KW - Nanoporous carbon

KW - Supercapacitor

KW - ZIF7

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U2 - 10.1016/j.jelechem.2018.01.012

DO - 10.1016/j.jelechem.2018.01.012

M3 - Article

AN - SCOPUS:85041472647

SN - 1572-6657

VL - 810

SP - 239

EP - 247

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

ER -

Zeolitic imidazolate framework-7 textile-derived nanocomposite fibers as freestanding supercapacitor electrodes

Abstract

Keywords

ASJC Scopus subject areas

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