Vertically molybdenum disulfide nanosheets on carbon cloth using CVD by controlling growth atmosphere for electrocatalysis

Haolin Wang; Longfei Geng; Zixuan Zhang; Peng Zhong; Fei Liu; Yong Xie; Yajuan Zhao; Peixian Li; Xiaohua Ma

doi:10.1088/1361-6528/acd854

Vertically molybdenum disulfide nanosheets on carbon cloth using CVD by controlling growth atmosphere for electrocatalysis

Nanotechnology. 2023 Jun 28;34(37). doi: 10.1088/1361-6528/acd854.

Authors

Haolin Wang^{1

2}, Longfei Geng¹, Zixuan Zhang¹, Peng Zhong¹, Fei Liu¹, Yong Xie¹, Yajuan Zhao³, Peixian Li¹, Xiaohua Ma⁴

Affiliations

¹ School of Advanced Materials and Nanotechnology, Xidian University, Xi'an Shaanxi, 710071, People's Republic of China.
² Guangzhou Institute of Technology, Xidian University, Guangzhou, Guangdong, 510080, People's Republic of China.
³ School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi'an Shaanxi, 710021, People's Republic of China.
⁴ State Key Discipline Laboratory of Wide Bandgap Semiconductor Technology, Xidian University, Xi'an Shaanxi, 710071, People's Republic of China.

PMID: 37224799
DOI: 10.1088/1361-6528/acd854

Abstract

Molybdenum disulfide (MoS₂) has been deemed as one of the promising noble-metal-free electrocatalysts for hydrogen evolution reaction (HER), but it suffers from the inert basal plane and low electronic conductivity. Regulating the morphology of MoS₂during the synthesis on conductive substrates is a synergistic strategy for enhancing the HER performance. In this work, vertical MoS₂nanosheets were fabricated on carbon cloth (CC) using an atmospheric pressure chemical vapor deposition method. The growth process could be effectively tuned through introducing hydrogen gas during vapor deposition process, resulting in nanosheets with increased edge density. The mechanism for edge-enriching through controlling the growth atmosphere is systematically studied. The as-prepared MoS₂exhibits excellent HER activity due to the combination of optimized microstructures and coupling with CC. Our findings provide new insights to design advanced MoS₂-based electrocatalysts for HER.

Keywords: MoS2 nanosheets; chemical vapor deposition; controlled growth; hydrogen evolution reaction.