Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/180134
Title: Highly active single-layer 2H-MoS2 for CO2 hydrogenation to methanol
Authors: Zhou, Shenghui
Ma, Wenrui
Kosari, Mohammadreza
Lim, Alvin M.H.
Kozlov, Sergey M.
Zeng, Hua Chun
Keywords: Engineering
Issue Date: 2024
Source: Zhou, S., Ma, W., Kosari, M., Lim, A. M., Kozlov, S. M. & Zeng, H. C. (2024). Highly active single-layer 2H-MoS2 for CO2 hydrogenation to methanol. Applied Catalysis B: Environment and Energy, 349, 123870-. https://dx.doi.org/10.1016/j.apcatb.2024.123870
Project: LCERFI01–0033
U2102d2006
CREATE C4T
A-0009169–00–00
Journal: Applied Catalysis B: Environment and Energy
Abstract: Few-layer MoS2 were recently discovered as promising catalyst for CO2 hydrogenation to methanol, despite extreme conditions proposed for its synthesis. Herein, we developed an exceptionally facile, safe, and scalable strategy to prepare single-layer MoS2 (s-MoS2) at ambient pressure using instantaneous self-assembled micelles of didodecyldimethylammonium (DA)−MoS4 complexes as precursor. During the pyrolysis, the presence and subsequent decomposition of coordinated DA inhibited the growth and sheet-stacking of MoS2 in c-direction, resulting in discrete s-MoS2 molecular sheets which maximize the exposure of in-plane S vacancies (Sv). Remarkably, s-MoS2 displayed 77% methanol selectivity and methanol space time yield of 1.54 g·gMoS2–1·h–1, representing the top levels among reported MoS2 catalysts under similar conditions. Density functional theory (DFT) simulations attribute high activity of s-MoS2 to its ability to stabilize in-plane low-coordinated Mo atoms in the vicinity of Sv on both sides of monolayer. The superior performance of s-MoS2 creates new prospects for technological applications beyond CO2 hydrogenation.
URI: https://hdl.handle.net/10356/180134
ISSN: 0926-3373
DOI: 10.1016/j.apcatb.2024.123870
Schools: School of Chemistry, Chemical Engineering and Biotechnology 
Organisations: Department of Chemical and Biomolecular Engineering, NUS
The Cambridge Centre for Advanced Research and Education, Singapore
Rights: © 2024 Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CCEB Journal Articles

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