Fabrication of symmetric supercapacitors based on MOF-derived nanoporous carbons

Authors

Rahul R. Salunkhe, National Institute for Materials Science, Japan
Yuichiro Kamachi, National Institue for Materials Science, Japan
Nagy L. Torad, National Institute of Materials Science (Nims) - Japan, Waseda University
Soomin Hwang, University of WollongongFollow
Ziqi Sun, University of WollongongFollow
S X. Dou, University of WollongongFollow
Jung Ho Kim, University of WollongongFollow
Yusuke Yamauchi, University of Wollongong

RIS ID

95618

Publication Details

Salunkhe, R. R., Kamachi, Y., Torad, N. L., Hwang, S., Sun, Z., Dou, S. Xue., Kim, J. & Yamauchi, Y. (2014). Fabrication of symmetric supercapacitors based on MOF-derived nanoporous carbons. Journal of Materials Chemistry A, 2 (46), 19848-19854.

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.