表征(材料科学)
纳米技术
透射电子显微镜
扫描透射电子显微镜
化学
能量过滤透射电子显微镜
电子断层摄影术
催化作用
电子能量损失谱
材料科学
有机化学
作者
Hsin‐Yun Chao,Kartik Venkatraman,Saman Moniri,Yongjun Jiang,Xuan Tang,Sheng Dai,Wenpei Gao,Jianwei Miao,Miaofang Chi
出处
期刊:Chemical Reviews
[American Chemical Society]
日期:2023-06-16
卷期号:123 (13): 8347-8394
被引量:29
标识
DOI:10.1021/acs.chemrev.2c00880
摘要
Catalysts are the primary facilitator in many dynamic processes. Therefore, a thorough understanding of these processes has vast implications for a myriad of energy systems. The scanning/transmission electron microscope (S/TEM) is a powerful tool not only for atomic-scale characterization but also in situ catalytic experimentation. Techniques such as liquid and gas phase electron microscopy allow the observation of catalysts in an environment conducive to catalytic reactions. Correlated algorithms can greatly improve microscopy data processing and expand multidimensional data handling. Furthermore, new techniques including 4D-STEM, atomic electron tomography, cryogenic electron microscopy, and monochromated electron energy loss spectroscopy (EELS) push the boundaries of our comprehension of catalyst behavior. In this review, we discuss the existing and emergent techniques for observing catalysts using S/TEM. Challenges and opportunities highlighted aim to inspire and accelerate the use of electron microscopy to further investigate the complex interplay of catalytic systems.
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