Issue 5, 2022

Phosphorus doping induced the co-construction of sulfur vacancies and heterojunctions in tin disulfide as a durable anode for lithium/sodium-ion batteries

Abstract

The reasonable design of electrode materials with heterojunctions and vacancies is a promising strategy to elevate their electrochemical performances. Herein, tin-based sulfide composites with heterojunctions and sulfur vacancies encapsulated by reduced graphene oxide (SnS2−xPx/RGO) were successfully designed and synthesized via a facile hydrothermal assisted phosphating method. The introduction of sulfur vacancies and construction of SnS–SnS2 heterojunctions were realized simultaneously by the phosphating process. The synergistic effect of the heterojunction, sulfur vacancy and phosphorus-doping could improve the conductivity, accelerate the ion transport dynamics, and enhance structural stability. Thus, high-rate, long-term cycling stability was observed for Li-half cells (337 mA h g−1 maintained after 3000 cycles at 10 A g−1) and Na-half cells (199 mA h g−1 maintained after 4000 cycles at 2 A g−1). The design strategy can effectively improve the energy storage performance of tin based sulfides and can be extended to other metal sulfides.

Graphical abstract: Phosphorus doping induced the co-construction of sulfur vacancies and heterojunctions in tin disulfide as a durable anode for lithium/sodium-ion batteries

Supplementary files

Article information

Article type
Research Article
Submitted
09 Dec 2021
Accepted
10 Jan 2022
First published
10 Jan 2022

Inorg. Chem. Front., 2022,9, 902-913

Phosphorus doping induced the co-construction of sulfur vacancies and heterojunctions in tin disulfide as a durable anode for lithium/sodium-ion batteries

Z. Kong, M. Huang, Z. Liang, H. Tu, K. Zhang, Y. Shao, Y. Wu and X. Hao, Inorg. Chem. Front., 2022, 9, 902 DOI: 10.1039/D1QI01536B

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