催化作用
化学
中心(范畴论)
发光
协调数
Atom(片上系统)
结晶学
原子物理学
物理
离子
光电子学
量子力学
生物化学
计算机科学
嵌入式系统
作者
Weijiang Guan,Wei-Wei Cheng,Shuxin Pei,Xuebo Chen,Zhiqin Yuan,Chao Lu
标识
DOI:10.1002/anie.202401214
摘要
Abstract It is essential to probe the coordination number (CN) because it is a crucial factor to ensure the catalytic capability of single‐atom catalysts (SACs). Currently, synchrotron X‐ray absorption spectroscopy (XAS) is widely used to measure the CN. However, the scarcity of synchrotron X‐ray source and complicated data analysis restrict its wide applications in determining the CN of SACs. In this contribution, we have developed a d‐ band center‐regulated acetone cataluminescence (CTL) probe for a rapid screening of the CN of Pt‐SACs. It is disclosed that the CN‐triggered CTL is attributed to the fact that the increased CN could induce the downward shift of d ‐band center position, which assists the acetone adsorption and promotes the subsequent catalytic reaction. In addition, the universality of the proposed acetone‐CTL probe is verified by determining the CN of Fe‐SACs. This work has opened a new avenue for exploring an alternative to synchrotron XAS for the determination of CN of SACs and even conventional metal catalysts through d ‐band center‐regulated CTL.
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