Highly\nAmbient-Stable 1T-MoS₂ and 1T-WS₂ by Hydrothermal\nSynthesis under High Magnetic Fields

Abstract

The phase-controlled\nsynthesis of metallic and ambient-stable 2D\nMX₂ (M is Mo or W; X is S) with 1T octahedral coordination\nwill endow these materials with superior performance compared with\ntheir semiconducting 2H coordination counterparts. We report a clean\nand facile route to prepare 1T-MoS₂ and 1T-WS₂ through hydrothermal processing under high magnetic fields. We reveal\nthat the as-synthesized 1T-MoS₂ and 1T-WS₂ are\nambient-stable for more than 1 year. Electrochemical measurements\nshow that 1T-MoS₂ performs much better than 2H-MoS₂ as the anode for sodium ion batteries. These results can\nprovide a clean and facile method to prepare ambient-stable 1T-phase\nMX₂.