Citation: Feilong GONG, Jingxuan LIU, Mengmeng LIU, Sankui XU, Feng LI. Dynamical modulation and electrochemical water splitting effect of oxygen doped onto MoS₂ core-shell spheres[J]. Chinese Journal of Inorganic Chemistry, ;2024, 40(1): 256-262. doi: 10.11862/CJIC.20230390 shu

Dynamical modulation and electrochemical water splitting effect of oxygen doped onto MoS₂ core-shell spheres

Feilong GONG ¹ ,
Jingxuan LIU ¹ ,
Mengmeng LIU ¹ ,
Sankui XU ² ,
Feng LI ^{1, 3,,}

1.
Key Laboratory of Surface and Interface Science and Technology, Zhengzhou University of Light Industry, Zhengzhou 450002, China
2.
College of Material Engineering, Henan University of Technology, Zhengzhou 450001, China
3.
American Advanced Nanotechnology, Houston, TX 77459, USA

Corresponding author: Feng LI, lifeng696@yahoo.com
Received Date: 18 October 2023
Revised Date: 20 December 2023

Figures(4)

Monodispersed MoS₂ core-shell spheres were produced by annealing precursor MoS₂ core-shell superspheres at 900 ℃ in Ar. Simultaneously, O-doping amount (atomic fraction) can be tuned from 23.1% of precursor to 17.6%, 10.8%, 5.5%, and 6.2% of as-prepared materials by regulating the heating rate of 20, 10, 5, and 2 ℃·min^-1, respectively. The lower rate results in a lower amount of O doped onto MoS₂ core-shell spheres. Based on the special quasi-molecular superlattices of precursors, an in-situ anion exchange reaction mechanism was proposed to understand the dynamical modulation of O-doping. The study on the electrochemical properties of the materials demonstrates that their electrochemical performance in splitting water can be improved by tuning the O-doping amount.
- MoS₂,
- core-shell sphere,
- O-doped,
- dynamical modulation,
- electrochemical property,
- water splitting
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Dynamical modulation and electrochemical water splitting effect of oxygen doped onto MoS2 core-shell spheres

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Dynamical modulation and electrochemical water splitting effect of oxygen doped onto MoS₂ core-shell spheres