Modulation Excitation Spectroscopy: A Powerful Tool to Elucidate Active Species and Sites in Catalytic Reactions,Accounts of Chemical Research

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Modulation Excitation Spectroscopy: A Powerful Tool to Elucidate Active Species and Sites in Catalytic Reactions
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2024-08-26 , DOI: 10.1021/acs.accounts.4c00351
Jakob Weyel ₁ , Leon Schumacher ₁ , Marc Ziemba ₁ , Maximilian Pfeiffer ₁ , Christian Hess ₁

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A rational design of catalysts requires a knowledge of the active species and sites. Often, catalyst surfaces are dominated by spectators, which do not participate in the reaction, while the catalytically active species and sites are hidden. Modulation-excitation spectroscopy (MES) allows discrimination between active and spectator species by applying a concentration modulation, which is translated into the active (that is, actively responding) species by phase-sensitive detection (PSD).

中文翻译：

调制激发光谱：阐明催化反应中活性物质和位点的强大工具

催化剂的合理设计需要了解活性物质和位点。通常，催化剂表面被观众占据，他们不参与反应，而催化活性物质和位点则被隐藏。调制激发光谱 (MES) 通过应用浓度调制来区分活性物种和观察物种，通过相敏检测 (PSD) 将浓度调制转换为活性（即主动响应）物种。

更新日期：2024-08-26

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