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iScience

Title:		The nature of K-induced 2H and 1T'-MoS(2) species and their phase transition behavior for the synthesis of methanethiol (CH(3)SH)
Author(s):		Xu Z; Fang J; Lu J; He D; He S; Luo Y;
Address:		"Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, P. R. China. Yunnan Research Academy of Eco-environmental Sciences, Kunming 650093, P. R. China. The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming 650500, P. R. China. The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming 650500, P. R. China. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650050, P.R. China"
Journal Title:		iScience
Year:		2022
Volume:		20220824
Issue:		9
Page Number:		104999 -
DOI:		10.1016/j.isci.2022.104999
ISSN/ISBN:		2589-0042 (Electronic) 2589-0042 (Linking)
Abstract:		"The one-step reaction approach from syngas with hydrogen sulfide (CO/H(2)/H(2)S) over potassium (K) promoted Molybdenum disulfide (MoS(2)) materials can provide alternatives for the synthesis of methanethiol (CH(3)SH). However, the direct confirmation and determination of the real active nature of K-induced 2H and 1T'-MoS(2) for this reaction and the corresponding phase transformation behavior and origin of K-induced 2H-MoS(2) from/to 1T'-MoS(2) remains unclear. Herein, we proved at the atomic level the precise position of K over 1T'-MoS(2) and 2H-MoS(2) species using the technique of HAADF-STEM. A relationship between K-induced 1T' and 2H-MoS(2) phases and the catalytic property to synthesize CH(3)SH was established, and K-intercalated 1T'-MoS(2) phase was confirmed to have excellent catalytic performances. Moreover, the behavior, origin, and influencing factors of phase transformation of 2H-MoS(2) from/to 1T'-MoS(2) in the existence of K were well proved"
Keywords:		Catalysis chemical reaction chemistry inorganic chemistry;
Notes:		"PubMed-not-MEDLINEXu, Zhizhi Fang, Jian Lu, Jichang He, Dedong He, Sufang Luo, Yongming eng 2022/09/14 iScience. 2022 Aug 24; 25(9):104999. doi: 10.1016/j.isci.2022.104999. eCollection 2022 Sep 16"