Realization of Wafer‐Scale 1T‐MoS2 Film for Efficient Hydrogen Evolution Reaction
SCIE
SCOPUS
- Title
- Realization of Wafer‐Scale 1T‐MoS2 Film for Efficient Hydrogen Evolution Reaction
- Authors
- Kim, Hyeong‐U.; Kim, Mansu; Seok, Hyunho; Park, Kyu‐Young; Moon, Ji‐Yun; Park, Jonghwan; An, Byeong‐Seon; Jung, Hee Joon; Dravid, Vinayak P.; Whang, Dongmok; Lee, Jae‐Hyun; Kim, Taesung
- Date Issued
- 2021-03
- Publisher
- Wiley - V C H Verlag GmbbH & Co.
- Abstract
- The octahedral structure of 2D molybdenum disulfide (1T-MoS2) has attracted attention as a high-efficiency and low-cost electrocatalyst for hydrogen production. However, the large-scale synthesis of 1T-MoS2 films has not been realized because of higher formation energy compared to that of the trigonal prismatic phase (2H)-MoS2. In this study, a uniform wafer-scale synthesis of the metastable 1T-MoS2 film is performed by sulfidation of the Mo metal layer using a plasma-enhanced chemical vapor deposition (PE-CVD) system. Thus, plasma-containing highly reactive ions and radicals of the sulfurization precursor enable the synthesis of 1T-MoS2 at 150 degrees C. Electrochemical analysis of 1T-MoS2 shows enhanced catalytic activity for the hydrogen evolution reaction (HER) compared to that of previously reported MoS2 electrocatalysts 1T-MoS2 does not transform into stable 2H-MoS2 even after 1000 cycles of HER. The proposed low-temperature synthesis approach may offer a promising solution for the facile production of various metastable-phase 2D materials.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/107729
- DOI
- 10.1002/cssc.202002578
- ISSN
- 1864-5631
- Article Type
- Article
- Citation
- ChemSusChem, vol. 14, no. 5, page. 1344 - 1350, 2021-03
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