<i>In‐situ</i>
            Electron Paramagnetic Resonance of Powder Catalysts

Brückner, Angelika

doi:10.1002/9781118355923.ch11

Cited by 3 publications

(1 citation statement)

References 44 publications

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“…EPR, also named as electron spin resonance (ESR), is a technique to detect paramagnetic species that contain unpaired electrons, and it has long been used in the field of surface chemistry and heterogeneous catalysis since the 1960s. , It is a powerful tool to extract information very sensitively, on the nature, symmetry, electronic structure, and changes in the valence states of the paramagnetic center and interactions with each other as well as with reactants. − The common research objects that involve EPR comprise transition metal ions in paramagnetic valence states, radicals, and radical ions being intrinsic constituents of oxides (such as oxygen vacancies) or formed in reaction and electrons present in metals or in organic polymers. − Information related to these aspects is also indeed a key issue in the research of metal oxide supported single metal atom catalysts, leading to the inevitably use of EPR technology. ,,,,,,,,,, …”

Section: Characterization Of Metal–metal Oxide Sacsmentioning

confidence: 99%

Single-Atom Catalysts Based on the Metal–Oxide Interaction

et al. 2020

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Metal atoms dispersed on the oxide supports constitute a large category of single-atom catalysts. In this review, oxide supported single-atom catalysts are discussed about their synthetic procedures, characterizations, and reaction mechanism in thermocatalysis, such as water–gas shift reaction, selective oxidation/hydrogenation, and coupling reactions. Some typical oxide materials, including ferric oxide, cerium oxide, titanium dioxide, aluminum oxide, and so on, are intentionally mentioned for the unique roles as supports in anchoring metal atoms and taking part in the catalytic reactions. The interactions between metal atoms and oxide supports are summarized to give a picture on how to stabilize the atomic metal centers, and rationally tune the geometric structures and electronic states of single atoms. Furthermore, several directions in fabricating single-atom catalysts with improved performance are proposed on the basis of state-of-the-art understanding in metal-oxide interactions.

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Section: Characterization Of Metal–metal Oxide Sacsmentioning

confidence: 99%

Single-Atom Catalysts Based on the Metal–Oxide Interaction

et al. 2020

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In Situ Electron Paramagnetic Resonance Spectroscopy in Catalysis

Liu

Wang

2021

Heterogeneous Catalysts

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In Situ EPR Spectroscopy in Heterogeneous Catalysis: Stepchild or Ray of Hope?

Brückner¹

2014

Chemie Ingenieur Technik

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In diesem Übersichtsartikel wird das Potenzial der Elektronenspinresonanz‐Spektroskopie (ESR, electron paramagnetic resonance, EPR) als In‐situ‐Methode für Untersuchungen von Struktur‐Reaktivitäts‐Beziehungen in der heterogenen Katalyse analysiert. Nach einer kurzen Einführung zum Stand der Technik auf diesem Gebiet sowie in die theoretischen Grundlagen der Methode werden typische Anwendungsmöglichkeiten anhand von drei praktischen Beispielen illustriert. Am Schluss steht eine kritische Bewertung von Möglichkeiten und Grenzen der Methode in der heterogenen Katalyse.

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In‐situ Electron Paramagnetic Resonance of Powder Catalysts

Cited by 3 publications

References 44 publications

Single-Atom Catalysts Based on the Metal–Oxide Interaction

Single-Atom Catalysts Based on the Metal–Oxide Interaction

In Situ Electron Paramagnetic Resonance Spectroscopy in Catalysis

In Situ EPR Spectroscopy in Heterogeneous Catalysis: Stepchild or Ray of Hope?

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