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DOI	10.1126/science.abb3649
	A hydrophobic FeMn@Si catalyst increases olefins from syngas by suppressing C1 by-products
	Xu Y.; Li X.; Gao J.; Wang J.; Ma G.; Wen X.; Yang Y.; Li Y.; Ding M.
发表日期	2021
ISSN	0036-8075
起始页码	610
结束页码	613
卷号	371 期号:6529
英文摘要	Although considerable efforts have been made in the selective conversion of syngas [carbon monoxide (CO) and hydrogen] to olefins through Fischer-Tropsch synthesis (FTS), ~50% of the converted CO is transformed into the undesired one-carbon molecule (C1) by-products [carbon dioxide (CO2) and methane (CH4)]. In this study, a core-shell FeMn@Si catalyst with excellent hydrophobicity was designed to hinder the formation of CO2and CH4. The hydrophobic shell protected the iron carbide core from oxidation by water generated during FTS and shortened the retention of water on the catalyst surface, restraining the side reactions related to water. Furthermore, the electron transfer from manganese to iron atoms boosted olefin production and inhibited CH4formation. The multifunctional catalyst could suppress the total selectivity of CO2and CH4to less than 22.5% with an olefin yield of up to 36.6% at a CO conversion of 56.1%. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	alkene; carbon dioxide; carbon monoxide; chlorotrimethylsilane; iron; manganese; methane; silicon; carbon dioxide; carbon monoxide; catalysis; catalyst; detection method; hydrophobicity; inorganic compound; methane; transformation; Article; catalyst; chemical bond; chemical composition; chemical modification; cross coupling reaction; diffuse reflectance infrared Fourier transform spectroscopy; Fischer Tropsch synthesis; Fourier transform infrared spectroscopy; hydrogenation; hydrophobicity; oxidation; surface property; transmission electron microscopy; water retention; X ray diffraction
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246078
作者单位	School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, China; Synfuels China Co., Ltd., Beijing, 101407, China; State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
推荐引用方式 GB/T 7714	Xu Y.,Li X.,Gao J.,et al. A hydrophobic FeMn@Si catalyst increases olefins from syngas by suppressing C1 by-products[J],2021,371(6529).
APA	Xu Y..,Li X..,Gao J..,Wang J..,Ma G..,...&Ding M..(2021).A hydrophobic FeMn@Si catalyst increases olefins from syngas by suppressing C1 by-products.Science,371(6529).
MLA	Xu Y.,et al."A hydrophobic FeMn@Si catalyst increases olefins from syngas by suppressing C1 by-products".Science 371.6529(2021).