CoSe/NC Composites through the Selenization of ZIF-67 for High-Performance Supercapacitor Electrodes

Iqra Shaukat; Naseem Iqbal; Tayyaba Noor; Maryam Raza; Rabia Ahmad

doi:10.1021/acs.energyfuels.3c03169

CoSe/NC Composites through the Selenization of ZIF-67 for High-Performance Supercapacitor Electrodes

Iqra Shaukat
, Naseem Iqbal^*
, Tayyaba Noor
, Maryam Raza
, Rabia Ahmad

^*Corresponding author for this work

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

16 Scopus citations

Abstract

ZIF-based electrode materials are considered to be efficient electrode materials for supercapacitor applications because of their adjustable structure and greater surface area features. In this work, CoSe/NC (nanoporous carbon) composites were synthesized by keeping the mass ratio of ZIF-67 constant and varying the amount of selenium powder, pyrolyzed at 800 °C under a reducing atmosphere(Ar/H₂) for 4 h. ZIF-67 was synthesized by the coprecipitation method. CoSe-1 showed excellent electrochemical performance with the highest value of specific capacitance (746 F g^-1 at 2 mV s^-1), showing a cyclic capability of 82.3% after 4000 cycles because of the optimized ratio of cobalt and selenium in it.

Original language	English
Pages (from-to)	16150-16159
Number of pages	10
Journal	Energy and Fuels
Volume	37
Issue number	20
DOIs	https://doi.org/10.1021/acs.energyfuels.3c03169
State	Published - 19 Oct 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology

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title = "CoSe/NC Composites through the Selenization of ZIF-67 for High-Performance Supercapacitor Electrodes",

abstract = "ZIF-based electrode materials are considered to be efficient electrode materials for supercapacitor applications because of their adjustable structure and greater surface area features. In this work, CoSe/NC (nanoporous carbon) composites were synthesized by keeping the mass ratio of ZIF-67 constant and varying the amount of selenium powder, pyrolyzed at 800 °C under a reducing atmosphere(Ar/H2) for 4 h. ZIF-67 was synthesized by the coprecipitation method. CoSe-1 showed excellent electrochemical performance with the highest value of specific capacitance (746 F g-1 at 2 mV s-1), showing a cyclic capability of 82.3\% after 4000 cycles because of the optimized ratio of cobalt and selenium in it.",

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AU - Noor, Tayyaba

AU - Raza, Maryam

AU - Ahmad, Rabia

PY - 2023/10/19

Y1 - 2023/10/19

N2 - ZIF-based electrode materials are considered to be efficient electrode materials for supercapacitor applications because of their adjustable structure and greater surface area features. In this work, CoSe/NC (nanoporous carbon) composites were synthesized by keeping the mass ratio of ZIF-67 constant and varying the amount of selenium powder, pyrolyzed at 800 °C under a reducing atmosphere(Ar/H2) for 4 h. ZIF-67 was synthesized by the coprecipitation method. CoSe-1 showed excellent electrochemical performance with the highest value of specific capacitance (746 F g-1 at 2 mV s-1), showing a cyclic capability of 82.3% after 4000 cycles because of the optimized ratio of cobalt and selenium in it.

AB - ZIF-based electrode materials are considered to be efficient electrode materials for supercapacitor applications because of their adjustable structure and greater surface area features. In this work, CoSe/NC (nanoporous carbon) composites were synthesized by keeping the mass ratio of ZIF-67 constant and varying the amount of selenium powder, pyrolyzed at 800 °C under a reducing atmosphere(Ar/H2) for 4 h. ZIF-67 was synthesized by the coprecipitation method. CoSe-1 showed excellent electrochemical performance with the highest value of specific capacitance (746 F g-1 at 2 mV s-1), showing a cyclic capability of 82.3% after 4000 cycles because of the optimized ratio of cobalt and selenium in it.

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ER -

CoSe/NC Composites through the Selenization of ZIF-67 for High-Performance Supercapacitor Electrodes

Abstract

Bibliographical note

ASJC Scopus subject areas

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