Gram-Scale Aqueous Synthesis of Stable Few-Layered 1T-MoS2 : Applications for Visible-Light-Driven Photocatalytic Hydrogen Evolution

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Qin LiuLi Song

Abstract

Most recently, much attention has been devoted to 1T phase MoS2 because of its distinctive phase-engineering nature and promising applications in catalysts, electronics, and energy storage devices. While alkali metal intercalation and exfoliation methods have been well developed to realize unstable 1T-MoS2 , but the aqueous synthesis for producing stable metallic phase remains big challenging. Herein, a new synthetic protocol is developed to mass-produce colloidal metallic 1T-MoS2 layers highly stabilized by intercalated ammonium ions (abbreviated as N-MoS2). In combination with density functional calculations, the X-ray diffraction pattern and Raman spectra elucidate the excellent stability of metallic phase. As clearly depicted by high-angle annular dark-field imaging in an aberration-corrected scanning transmission electron microscope and extended X-ray absorption fine structure, the N-MoS2 exhibits a distorted octahedral structure with a 2a0 × a0 basal plane superlattice and 2.72 Å Mo-Mo bond length. In a proof-of-concept demonstration for the obtained material's applications, highly efficient photocatalytic activity is achieved by simply hybridizing metallic N-MoS2 with semiconducting CdS nanorods due to the synergistic ef...Continue Reading

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Citations

Nov 3, 2016·Small·Xin LiJun Xie
Jul 12, 2017·ACS Applied Materials & Interfaces·Zhipeng LiuNan Li
Jul 22, 2017·Journal of the American Chemical Society·Jianqi ZhuGuangyu Zhang
Jul 31, 2018·Chemical Society Reviews·Zhiwei WangWei Huang
Aug 31, 2018·Advanced Materials·Xiaoxu ZhaoKian Ping Loh
Jan 21, 2020·Advanced Materials·Nasir UddinZongyou Yin
Mar 12, 2020·Nanoscale·Hui PanZhengxiao Guo
May 27, 2020·Chemical Society Reviews·Maria S Sokolikova, Cecilia Mattevi
Jun 27, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Yuki TakahashiItaru Honma
Sep 25, 2017·Chemistry : a European Journal·Nguyen Thi Xuyen, Jyh-Ming Ting

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