Issue 24, 2017

Sb2O3/MXene(Ti3C2Tx) hybrid anode materials with enhanced performance for sodium-ion batteries

Abstract

MXenes, a novel family of two dimensional (2D) materials with excellent electronic conductivity and hydrophilicity, have emerged as a promising material for energy storage. Based on the intercalation mechanism, MXenes have demonstrated an excellent performance for supercapacitors but low capacities for sodium-ion batteries. Herein, we developed a facile solution-phase method to fabricate the Sb2O3/MXene(Ti3C2Tx) hybrid materials for sodium storage with enhanced electrochemical performances. The as-prepared Sb2O3/Ti3C2Tx composite has a hierarchical structure with Sb2O3 nanoparticles (sub-50 nm) uniformly incorporated in the MXene Ti3C2Tx 3D networks. The Sb2O3 nanoparticles serve as a sufficient sodium ion reservoir; meanwhile, the MXene Ti3C2Tx network provides highly efficient pathways for transport of electrons and Na-ions. The volume expansion of Sb2O3 during sodiation/desodiation can be buffered and confined between the 2D Ti3C2Tx sheets. As a result, the Sb2O3/Ti3C2Tx hybrid anodes present good structural stability and superior electrochemical performance in Na-ion batteries, including an excellent rate performance with a capacity of 295 mA h g−1 at 2 A g−1, and an enhanced cycling performance with a capacity of 472 mA h g−1 after 100 cycles at 100 mA g−1. This work is expected to inspire the development of MXene materials for high performance batteries.

Graphical abstract: Sb2O3/MXene(Ti3C2Tx) hybrid anode materials with enhanced performance for sodium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
28 Mar 2017
Accepted
17 May 2017
First published
17 May 2017

J. Mater. Chem. A, 2017,5, 12445-12452

Sb2O3/MXene(Ti3C2Tx) hybrid anode materials with enhanced performance for sodium-ion batteries

X. Guo, X. Xie, S. Choi, Y. Zhao, H. Liu, C. Wang, S. Chang and G. Wang, J. Mater. Chem. A, 2017, 5, 12445 DOI: 10.1039/C7TA02689G

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