Issue 7, 2018

Enhanced electrochemical properties of cerium metal–organic framework based composite electrodes for high-performance supercapacitor application

Abstract

Cerium metal–organic framework based composites (Ce-MOF/GO and Ce-MOF/CNT) were synthesized by a wet chemical route and characterized with different techniques to characterize their crystal nature, morphology, functional groups, and porosity. The obtained Ce-MOF in the composites exhibit a nanorod structure with a size of ∼150 nm. The electrochemical performance of the composites was investigated in 3 M KOH and 3 M KOH + 0.2 M K3Fe(CN)6 electrolytes. Enhanced electrochemical behavior was obtained for the Ce-MOF/GO composite in both electrolytes and exhibited a maximum specific capacitance of 2221.2 F g−1 with an energy density of 111.05 W h kg−1 at a current density of 1 A g−1. The large mesoporous structure and the presence of oxygen functional groups in Ce-MOF/GO could facilitate ion transport in the electrode/electrolyte interface, and the results suggested that the Ce-MOF/GO composite could be used as a high-performance supercapacitor electrode material.

Graphical abstract: Enhanced electrochemical properties of cerium metal–organic framework based composite electrodes for high-performance supercapacitor application

Supplementary files

Article information

Article type
Paper
Submitted
26 noy 2017
Accepted
11 yan 2018
First published
17 yan 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 3462-3469

Enhanced electrochemical properties of cerium metal–organic framework based composite electrodes for high-performance supercapacitor application

R. Ramachandran, W. Xuan, C. Zhao, X. Leng, D. Sun, D. Luo and F. Wang, RSC Adv., 2018, 8, 3462 DOI: 10.1039/C7RA12789H

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