Issue 31, 2015

An advanced aqueous sodium-ion supercapacitor with a manganous hexacyanoferrate cathode and a Fe3O4/rGO anode

Abstract

This paper demonstrates how to design and construct an advanced aqueous sodium-ion supercapacitor by using manganous hexacyanoferrate (MnHCF) as the cathode material and Fe3O4/rGO nanocomposites as the anode material. The rational combination of these two materials with neutral aqueous electrolytes provides the devices with an extended voltage of 1.8 V, much higher power density (2183.5 W kg−1) and energy density (27.9 W h kg−1) compared with similar devices reported in the literature. The devices also have good cycling stability with 82.2% capacity retention even after 1000 cycles. More significantly, the supercapacitors are designed with low cost and environmentally benign materials and are more suitable for future large-scale practical applications.

Graphical abstract: An advanced aqueous sodium-ion supercapacitor with a manganous hexacyanoferrate cathode and a Fe3O4/rGO anode

Article information

Article type
Paper
Submitted
11 Jun 2015
Accepted
26 Jun 2015
First published
30 Jun 2015

J. Mater. Chem. A, 2015,3, 16013-16019

An advanced aqueous sodium-ion supercapacitor with a manganous hexacyanoferrate cathode and a Fe3O4/rGO anode

K. Lu, D. Li, X. Gao, H. Dai, N. Wang and H. Ma, J. Mater. Chem. A, 2015, 3, 16013 DOI: 10.1039/C5TA04244E

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