Issue 3, 2023

Lithium storage performance and mechanism of nano-sized Ti2InC MAX phase

Abstract

Fine powders of MAX phases (a family of layered carbides/nitrides) have been showing great promise in energy storage applications. A feasible method of obtaining nano-sized MAX phase particles is critical to realizing the practical application of the vast MAX phase family in more technologically important fields. Herein, ball milling, a commercial and feasible method, is employed to prepare nano-sized Ti2InC, which delivers a high specific capacity of 590 mA h g−1 after 500 cycles and maintains 574.4 mA h g−1 after 600 cycles at 0.1 A g−1 when used as a lithium storage anode. Compared with other methods (e.g., partial etching), decreasing the size of Ti2InC particles by ball milling can preserve the exfoliated indium (In) atoms, which have great volumetric and gravimetric capacities. In situ XRD analysis indicates that the capacity of the nano-sized Ti2InC primarily comes from the lithiation of elemental In exfoliated from Ti2InC, and in particular, the exfoliated In atoms by ball milling can increase the initial capacity. The lithiation/delithiation cycle can effectively activate and even exfoliate the Ti2InC grains, which accounts for the increasing capacity upon cycling.

Graphical abstract: Lithium storage performance and mechanism of nano-sized Ti2InC MAX phase

Supplementary files

Article information

Article type
Communication
Submitted
15 अक्तूबर 2022
Accepted
20 दिसम्बर 2022
First published
21 दिसम्बर 2022

Nanoscale Horiz., 2023,8, 331-337

Lithium storage performance and mechanism of nano-sized Ti2InC MAX phase

X. Xu, D. Sha, Z. Tian, F. Wu, W. Zheng, L. Yang, S. Xie, P. Zhang and Z. Sun, Nanoscale Horiz., 2023, 8, 331 DOI: 10.1039/D2NH00489E

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