Issue 93, 2014
From the journal:

RSC Advances

One-pot synthesis of thin Co(OH)2 nanosheets on graphene and their high activity as a capacitor electrode†

Gyoung Hwa Jeong,‡a   Hae-Min Lee,‡b   Heewoong Lee,c   Chang-Koo Kim,b   Yuanzhe Piao,d   Jae-Hyeok Lee,c   Jae-Ho Kimc  and  Sang-Wook Kim*ac  

* Corresponding authors

a Center of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea

b Division of Energy Systems Research, Ajou University, Suwon 443-749, Korea

c Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea
E-mail: swkim@ajou.ac.kr
Fax: +82 31 219 1592
Tel: +82 31 219 2522

d Graduate School of Convergence Science and Technology, Seoul National University, Suwon, 443-270, Korea

Abstract

We synthesized Co(OH)2/graphene composites from graphite without a graphene oxide (GO) step. The Co(OH)2/graphene composite exhibited a specific capacitance of 960 F g−1 at a current density of 10 A g−1. In addition, after 5000 cycles of charge/discharge operation, the Co(OH)2/graphene composite maintained its initial specific capacitance value of 93.4% at a current density of 30 A g−1.

Graphical abstract: One-pot synthesis of thin Co(OH)2 nanosheets on graphene and their high activity as a capacitor electrode

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Article information

DOI
https://doi.org/10.1039/C4RA10130H
Article type
Communication
Submitted
10 Sep 2014
Accepted
07 Oct 2014
First published
07 Oct 2014

RSC Adv., 2014,4, 51619-51623

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One-pot synthesis of thin Co(OH)2 nanosheets on graphene and their high activity as a capacitor electrode

G. H. Jeong, H. Lee, H. Lee, C. Kim, Y. Piao, J. Lee, J. Kim and S. Kim, RSC Adv., 2014, 4, 51619 DOI: 10.1039/C4RA10130H

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