Next Article in Journal
Separation of Short Single- and Double-Stranded DNA Based on Their Adsorption Kinetics Difference on Graphene Oxide
Previous Article in Journal
Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces
Article Menu

Export Article

Open AccessArticle
Nanomaterials 2013, 3(2), 204-220; doi:10.3390/nano3020204

Effects of Microstructure on Electrode Properties of Nanosheet-Derived Hx(Ni1/3Co1/3Mn1/3)O2 for Electrochemical Capacitors

1
Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan
2
Japan Science and Technology Agency, CREST, 5 Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
3
Yokohama Laboratory, Hitachi High-Tech Science Corporation, 1-18-2 Hakusan, Midori-ku, Yokohama, Kanagawa 226-0006, Japan
*
Author to whom correspondence should be addressed.
Received: 8 January 2013 / Revised: 17 February 2013 / Accepted: 12 March 2013 / Published: 25 March 2013
View Full-Text   |   Download PDF [3163 KB, uploaded 25 March 2013]   |  

Abstract

Nanosheet-derived Hx(Ni1/3Co1/3Mn1/3)O2 was prepared by restacking (Ni1/3Co1/3Mn1/3)O2 nanosheets with large or small lateral sizes and their electrochemical properties in a 1 M KOH aqueous solution; microstructural factors were compared with those of bulk Hx(Ni1/3Co1/3Mn1/3)O2 (HNCM). The electrodes composed of small nanosheets exhibited very large capacitances of 1241 F·g−1 (395 mAh·g−1) at a current density of 50 mA·g−1, and 430 F·g−1 (100 mAh·g−1) at a large current density of 1000 mA·g−1. These large capacitances resulted from a heterogeneous layer structure with a large surface area and pore volume. The electrodes of large nanosheets, with a strongly interconnected microstructure and a surface area slightly larger than that of HNCM, exhibited good cycle stability and capacitances larger than that of HNCM. Microstructural control through the restacking of (Ni1/3Co1/3Mn1/3)O2 nanosheets improved the electrochemical properties of Hx(Ni, Co, Mn)O2. View Full-Text
Keywords: nanosheets; Hx(Ni; Co; Mn)O2; layer-structured materials; electrochemical capacitors; energy storage devices nanosheets; Hx(Ni; Co; Mn)O2; layer-structured materials; electrochemical capacitors; energy storage devices
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Yano, M.; Suzuki, S.; Miyayama, M.; Ohgaki, M. Effects of Microstructure on Electrode Properties of Nanosheet-Derived Hx(Ni1/3Co1/3Mn1/3)O2 for Electrochemical Capacitors. Nanomaterials 2013, 3, 204-220.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top