Highly Ambient-Stable 1T-MoS2 and 1T-WS2 by Hydrothermal Synthesis under High Magnetic Fields

Wei Ding; Lin Hu; Jianming Dai; Xianwu Tang; Renhuai Wei; Zhigao Sheng; Changhao Liang; Dingfu Shao; Wenhai Song; Qiannan Liu; Mingzhe Chen; Xiaoguang Zhu; Shulei Chou; Xuebin Zhu; Qianwang Chen; Yuping Sun; Shi Xue Dou

doi:10.1021/acsnano.8b07744

Highly Ambient-Stable 1T-MoS₂ and 1T-WS₂ by Hydrothermal Synthesis under High Magnetic Fields

ACS Nano. 2019 Feb 26;13(2):1694-1702. doi: 10.1021/acsnano.8b07744. Epub 2019 Jan 18.

Authors

Wei Ding^{1

2

3}, Lin Hu⁴, Jianming Dai¹, Xianwu Tang¹, Renhuai Wei¹, Zhigao Sheng^{4

5}, Changhao Liang¹, Dingfu Shao⁶, Wenhai Song¹, Qiannan Liu³, Mingzhe Chen³, Xiaoguang Zhu¹, Shulei Chou³, Xuebin Zhu¹, Qianwang Chen^{2

4}, Yuping Sun^{1

4

5}, Shi Xue Dou³

Affiliations

¹ Key Laboratory of Materials Physics, Institute of Solid State Physics , Chinese Academy of Sciences , Hefei 230031 , China.
² University of Science and Technology of China , Hefei 230026 , China.
³ Institute for Superconducting and Electronic Materials , University of Wollongong , Wollongong , New South Wales 2522 , Australia.
⁴ High Magnetic Field Laboratory , Chinese Academy of Sciences , Hefei 230031 , China.
⁵ Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210093 , China.
⁶ Department of Physics and Astronomy & Nebraska Center for Materials and Nanoscience , University of Nebraska , Lincoln , Nebraska 68588-0299 , United States.

PMID: 30649862
DOI: 10.1021/acsnano.8b07744

Abstract

The phase-controlled synthesis of metallic and ambient-stable 2D MX₂ (M is Mo or W; X is S) with 1T octahedral coordination will endow these materials with superior performance compared with their semiconducting 2H coordination counterparts. We report a clean and facile route to prepare 1T-MoS₂ and 1T-WS₂ through hydrothermal processing under high magnetic fields. We reveal that the as-synthesized 1T-MoS₂ and 1T-WS₂ are ambient-stable for more than 1 year. Electrochemical measurements show that 1T-MoS₂ performs much better than 2H-MoS₂ as the anode for sodium ion batteries. These results can provide a clean and facile method to prepare ambient-stable 1T-phase MX₂.

Keywords: MoS2; high magnetic fields; hydrothermal; metallic 1T phase; nanosheets.