Rapid synthesis of defective and composition-controlled metal chalcogenide nanosheets by supercritical hydrothermal processing

Yuta Nakayasu; Siobhan Bradley; Hiroaki Kobayashi; Keiichiro Nayuki; Yoshikazu Sasaki; Takaaki Tomai; Thomas Nann; Itaru Honma

doi:10.1039/c9na00435a

Rapid synthesis of defective and composition-controlled metal chalcogenide nanosheets by supercritical hydrothermal processing

Nanoscale Adv. 2019 Aug 13;1(9):3383-3387. doi: 10.1039/c9na00435a. eCollection 2019 Sep 11.

Authors

Yuta Nakayasu¹, Siobhan Bradley², Hiroaki Kobayashi¹, Keiichiro Nayuki³, Yoshikazu Sasaki³, Takaaki Tomai¹, Thomas Nann⁴, Itaru Honma¹

Affiliations

¹ IMRAM, Tohoku University 2-1-1 Katahira, Aoba-ku Sendai Miyagi 980-8577 Japan nakayasu@tohoku.ac.jp itaru.homma.e8@tohoku.ac.jp +81 22(217)5828 +81 22(217)5816.
² ARC Centre of Excellence in Exciton Science, School of Chemistry, The University of Melbourne Parkville Victoria 3010 Australia.
³ Field Solution Division, JEOL Ltd. Tokyo 196-0022 Japan.
⁴ School of Mathematical and Physical Sciences, The University of Newcastle Callaghan NSW 2308 Australia.

Abstract

This study presents a simple one-pot synthesis method to achieve few-layered and defective Mo(S,Se)₂ and (Mo,W)S₂ by using supercritical water with organic reducing agents from simple and less-toxic precursors. This synthesis process is expected to be suitable for preparing other various kinds of TMD solid solutions.