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Issue 46, 2014
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Fabrication of symmetric supercapacitors based on MOF-derived nanoporous carbons

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Abstract

Nanoporous carbon (NPC) materials with high specific surface area have attracted considerable attention for electrochemical energy storage applications. In the present work, we have designed novel symmetric supercapacitors based on NPC by direct carbonization of Zn-based metal–organic frameworks (MOFs) without using an additional precursor. By controlling the reaction conditions in the present study, we synthesized NPC with two different particle sizes. The effects of particle size and mass loadings on supercapacitor performance have been carefully evaluated. Our NPC materials exhibit excellent electrochemical performance with a maximum specific capacitance of 251 F g−1 in 1 M H2SO4 electrolyte. The symmetric supercapacitor studies show that these efficient electrodes have good capacitance, high stability, and good rate capability.

Graphical abstract: Fabrication of symmetric supercapacitors based on MOF-derived nanoporous carbons

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Supplementary files

Article information


Submitted
18 Aug 2014
Accepted
21 Sep 2014
First published
27 Oct 2014

J. Mater. Chem. A, 2014,2, 19848-19854
Article type
Paper
Author version available

Fabrication of symmetric supercapacitors based on MOF-derived nanoporous carbons

R. R. Salunkhe, Y. Kamachi, N. L. Torad, S. M. Hwang, Z. Sun, S. X. Dou, J. H. Kim and Y. Yamauchi, J. Mater. Chem. A, 2014, 2, 19848
DOI: 10.1039/C4TA04277H

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