Issue 3, 2017

A two-dimensional hybrid of SbOx nanoplates encapsulated by carbon flakes as a high performance sodium storage anode

Abstract

Metallic Sb has been extensively researched as a Na storage anode due to its high capacity and low cost, but it suffers from poor cycling stability stemming from its huge volume change (∼390%) during cycling. Herein, a unique two-dimensional hybrid structure of SbOx nanoplates encapsulated by carbon flakes (SbOx@CF) was fabricated by templating with soluble NaCl. Benefiting from its two-dimensional structure providing rapid Na+ ion uptake and removal and uniform coating endowing a stable buffer layer, the hybrid presents a high reversible capacity (451 mA h g−1) and excellent rate capability (114 mA h g−1 at 4 A g−1), as well as stable cycling (442 mA h g−1 after 100 cycles with 98% capacity retention). This work opens up a facile, controllable, economical and extendable approach to prepare advanced two-dimensional metal oxides for batteries and supercapacitors.

Graphical abstract: A two-dimensional hybrid of SbOx nanoplates encapsulated by carbon flakes as a high performance sodium storage anode

Supplementary files

Article information

Article type
Paper
Submitted
26 Oct 2016
Accepted
01 Dec 2016
First published
01 Dec 2016

J. Mater. Chem. A, 2017,5, 1160-1167

A two-dimensional hybrid of SbOx nanoplates encapsulated by carbon flakes as a high performance sodium storage anode

W. Li, K. Wang, S. Cheng and K. Jiang, J. Mater. Chem. A, 2017, 5, 1160 DOI: 10.1039/C6TA09265A

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