Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 16, 2018
Previous Article Next Article

Co3O4 nanowire@NiO nanosheet arrays for high performance asymmetric supercapacitors

Author affiliations

Abstract

Herein, we report a simple and facile sequential hydrothermal process for the synthesis of Co3O4 nanowire@NiO nanosheet arrays (CNAs). The as-synthesized CNAs were characterized in detail using various analytical techniques, which confirmed the high crystallinity, purity, and high-density growth of these nanomaterials. From an application point of view, the as-synthesized CNAs were directly used as supercapacitor electrodes, revealing a specific capacitance of up to 2018 mF cm−2 at a current density of 2 mA cm−2. Furthermore, a flexible asymmetric supercapacitor was fabricated using the as-synthesized CNAs as the anode and activated carbon as the cathode, which revealed a specific capacitance of 134.6 mF cm−2 at a current density of 2 mA cm−2. In addition, the supercapacitor showed excellent capacity retention of 73.5% after 10 000 cycles at a current density of 10 mA cm−2.

Graphical abstract: Co3O4 nanowire@NiO nanosheet arrays for high performance asymmetric supercapacitors

Back to tab navigation

Article information


Submitted
26 Feb 2018
Accepted
25 Mar 2018
First published
26 Mar 2018

Dalton Trans., 2018,47, 5687-5694
Article type
Paper

Co3O4 nanowire@NiO nanosheet arrays for high performance asymmetric supercapacitors

L. Xing, Y. Dong, F. Hu, X. Wu and A. Umar, Dalton Trans., 2018, 47, 5687
DOI: 10.1039/C8DT00750K

Social activity

Search articles by author

Spotlight

Advertisements