Step edge structures on the anatase TiO2 (001) surface studied by atomic-resolution TEM and STM

Step edge structures on the anatase TiO2 (001) surface studied by atomic-resolution TEM and STM

Low-coordinate surface sites, such as those present on high-index step edges, often exhibit chemical reactivity that markedly differs from more close-packed facets. To understand the site-specific reactivity, insight into the three-dimensional atomic arrangement of step edges is needed. Here, we emp...

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Veröffentlicht in:Faraday discussions 2018, Vol.208, p.325-338
Hauptverfasser: M Ek, Beinik, I, Bruix, A, Wendt, S, Lauritsen, J V, Helveg, S
Format: Artikel
Sprache:eng
Schlagworte:
Anatase
Crystal structure
Crystal surfaces
Microscopes
Microscopy
Organic chemistry
Scanning tunneling microscopy
Single crystals
Titanium dioxide
Transmission electron microscopy
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Zusammenfassung:Low-coordinate surface sites, such as those present on high-index step edges, often exhibit chemical reactivity that markedly differs from more close-packed facets. To understand the site-specific reactivity, insight into the three-dimensional atomic arrangement of step edges is needed. Here, we employ atomic-resolution transmission electron microscopy (TEM) of nanoparticles in combination with scanning tunneling microscopy (STM) of a single crystal surface to uncover the structure of prevalent step edges on the anatase TiO2 (001) surface.
ISSN:1359-6640
1364-5498
DOI:10.1039/c7fd00222j