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

Rahul R. Salunkhe,a  Yuichiro Kamachi,a  Nagy L. Torad,ab  Soo Min Hwang,c  Ziqi Sun,c  Shi Xue Dou,c  Jung Ho Kimc  and  Yusuke Yamauchi*ab 
Author affiliations

* Corresponding authors

a World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Japan
E-mail: Yamauchi.Yusuke@nims.go.jp
Web: http://www.yamauchi-labo.com

b Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Japan

c Institute for Superconducting and Electronic Materials, University of Wollongong, North Wollongong, Australia

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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Publication details

The article was received on 18 Aug 2014, accepted on 21 Sep 2014 and first published on 27 Oct 2014


Article type: Paper
DOI: 10.1039/C4TA04277H
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. A, 2014,2, 19848-19854
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    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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