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DOI	10.1126/science.aay2474
	Visualizing H2O molecules reacting at TiO2 active sites with transmission electron microscopy
	Yuan W.; Zhu B.; Li X.-Y.; Hansen T.W.; Ou Y.; Fang K.; Yang H.; Zhang Z.; Wagner J.B.; Gao Y.; Wang Y.
发表日期	2020
ISSN	0036-8075
起始页码	428
结束页码	430
卷号	367 期号:6476
英文摘要	Imaging a reaction taking place at the molecular level could provide direct information for understanding the catalytic reaction mechanism. We used in situ environmental transmission electron microscopy and a nanocrystalline anatase titanium dioxide (001) surface with (1 × 4) reconstruction as a catalyst, which provided highly ordered four-coordinated titanium “active rows” to realize real-time monitoring of water molecules dissociating and reacting on the catalyst surface. The twin-protrusion configuration of adsorbed water was observed. During the water–gas shift reaction, dynamic changes in these structures were visualized on these active rows at the molecular level. Copyright © 2020 The Authors,
关键词	nanocrystal oxygen titanium dioxide water anatase catalysis catalyst gas phase reaction inorganic compound reconstruction transmission electron microscopy adsorption Article catalyst chemical modification chemical reaction chemical structure density functional theory dissociation electron beam heating molecular stability priority journal thermodynamics transmission electron microscopy water vapor
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133826
推荐引用方式 GB/T 7714	Yuan W.,Zhu B.,Li X.-Y.,et al. Visualizing H2O molecules reacting at TiO2 active sites with transmission electron microscopy[J]. Science,2020,367(6476).
APA	Yuan W..,Zhu B..,Li X.-Y..,Hansen T.W..,Ou Y..,...&Wang Y..(2020).Visualizing H2O molecules reacting at TiO2 active sites with transmission electron microscopy.,367(6476).
MLA	Yuan W.,et al."Visualizing H2O molecules reacting at TiO2 active sites with transmission electron microscopy".367.6476(2020).