Advanced TEM Characterization for Single-atom Catalysts:from Ex-situ Towards In-situ
作者机构：Beijing Key Laboratory of Microstructure and Properties of SolidsFaculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124P.R.China
出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)
年 卷 期：2022年第38卷第5期
页 面：1172-1184页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：National Natural Science Foundation of China(No.12074017) Beijing Municipal High Level Innovative Team Building Program,China(No.IDHT20190503) National Natural Science Fund for Innovative Research Groups of China(No.51621003)
主 题：Single-atom catalyst Transmission electron microscopy(TEM) Scanning transmission electron microscopy(STEM) Electron energy loss spectroscopy(EELS) Energy dispersive X-ray spectroscopy(EDX) In-situ TEM
摘 要：Clean energy innovation has triggered the development of single-atom catalysts(SACs)due to their excellent catalytic activity,high tunability and low *** success of SACs for many catalytic reactions has opened a new field,where the fundamentals of catalytic property-structure relationship at atomic level await exploration,and thus raises challenges for structural *** the characterization techniques for SACs,aberration-corrected transmission electron microscopy(TEM)has become an essential tool for direct visualization of single *** this review,we briefly summarize recent studies on SACs using advanced *** first introduce TEM methods,which are particularly important for SACs characterization,and then discuss the applications of advanced TEM for SAC characterization,where not only atomic dispersion of single atoms can be studied,but also the distribution of elements and the valence state with local coordination can be *** further extend our review towards in-situ TEM,which has increasing importance for the fundamental understanding of catalytic *** of TEM for SACs are finally discussed.
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