Issue 7, 2014

High performance flexible solid-state asymmetric supercapacitors from MnO2/ZnO core–shell nanorods//specially reduced graphene oxide

Abstract

With a view to developing flexible solid-state asymmetric supercapacitors, we have specially designed and nanoscopically engineered two types of electrodes: a MnO2/ZnO core–shell nanorod array and a HI-reduced graphene oxide assembly, both deposited in situ on a carbon cloth. These materials were thoroughly characterized by structural and spectroscopic techniques. The flexible solid-state asymmetric supercapacitors with cathodes and anodes made of these materials have demonstrated superior performance characteristics. They can be cycled in a wide potential window of 0–1.8 V for 5000 cycles with only 1.5% capacitance loss. The demonstrated volumetric energy density of 0.234 mW h cm−3 and volumetric power density of 0.133 W cm−3 are much higher than those of similar devices reported previously in the literature.

Graphical abstract: High performance flexible solid-state asymmetric supercapacitors from MnO2/ZnO core–shell nanorods//specially reduced graphene oxide

Supplementary files

Article information

Article type
Paper
Submitted
29 ⵢⵓⵍ 2013
Accepted
02 ⵛⵓⵜ 2013
First published
02 ⵛⵓⵜ 2013

J. Mater. Chem. C, 2014,2, 1331-1336

High performance flexible solid-state asymmetric supercapacitors from MnO2/ZnO core–shell nanorods//specially reduced graphene oxide

W. Zilong, Z. Zhu, J. Qiu and S. Yang, J. Mater. Chem. C, 2014, 2, 1331 DOI: 10.1039/C3TC31476F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements