Surface Structure Analysis of Powder Catalysts by Means of XAFS

Surface Structure Analysis of Powder Catalysts by Means of XAFS

XAFS is a fine structure that appears after the absorption edge of the X-ray absorption spectrum, and is known to reflect the local structure and electronic state of X-ray absorbing atoms. XAFS is an extremely powerful method for structural analysis of materials without crystallinity, and is current...

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Veröffentlicht in:Funtai Kogakkaishi Japan, 2023/12/10, Vol.60(12), pp.760-767
1. Verfasser: Kubota, Takeshi
Format: Artikel
Sprache:eng ; jpn
Schlagworte:
Absorption spectra
Catalyst
Catalysts
Electron states
EXAFS
Fine structure
Measurement methods
Nanoclusters
Structural analysis
Surface structure
Trace elements
X ray absorption
X-ray
XAFS
XANES
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Beschreibung
Zusammenfassung:XAFS is a fine structure that appears after the absorption edge of the X-ray absorption spectrum, and is known to reflect the local structure and electronic state of X-ray absorbing atoms. XAFS is an extremely powerful method for structural analysis of materials without crystallinity, and is currently widely used for the characterization of nanoparticles, catalytically active species, and trace elements in glasses. In this review, I briefly explain the principle and measurement method of XAFS, and introduce examples of its application to heterogeneous solid powder catalysts and metal nanoclusters, centering on the author's research results.
ISSN:0386-6157
1883-7239
DOI:10.4164/sptj.60.760