Evidence from coadsorption studies for a molecular precursor state in the oxidation of Zn(0001)

1988 ◽  
pp. 267 ◽  
Author(s):  
A. F. Carley ◽  
M. W. Roberts ◽  
Song Yan
Keyword(s):  
Precursor State ◽  
Molecular Precursor

Atomically Smooth Ultrathin Oxide Layers on SI(113)

1999 ◽  
Vol 567 ◽  
Author(s):  
H.-J. Müssig ◽  
J. Dabrowski ◽  
S. Hinrich
Keyword(s):  
Elevated Temperatures ◽  
Oxidation Mechanism ◽  
Dissociative Chemisorption ◽  
Initial Oxidation ◽  
Precursor State ◽  
Oxide Layers ◽  
Adsorption Sites ◽  
Molecular Precursor ◽  
Diffusion Paths ◽  
Ultrathin Oxide

ABSTRACTWe report the first direct observation of dissociative chemisorption of oxygen molecules on a silicon surface at room temperature via a molecular precursor state. We link this to the fact that smooth oxide layers can be grown easily on Si(113). The process of initial oxidation is discussed in terms of surface diffusion paths and surface stress. First ab initiocalculations help elucidate the favored adsorption sites and the oxidation mechanism. Experimental evidence was found for bond geometries resulting in the quasi-epitaxial growth of a chemisorption layer on the substrate at elevated temperatures (600°C). In contrast to the first stages of Si(001) oxidation, neither defects nor the ejection of Si atoms plays a significant role during the initial oxidation of Si(113).

ChemInform Abstract: Synthesis of 4H-SrMnO3.0Nanoparticles from a Molecular Precursor and Their Topotactic Reduction Pathway Identified at Atomic Scale.

ChemInform ◽  
2014 ◽  
Vol 45 (25) ◽  
pp. no-no
Author(s):  
Irma N. Gonzalez-Jimenez ◽  
Almudena Torres-Pardo ◽  
Ana E. Sanchez-Pelaez ◽  
Angel Gutierrez ◽  
Mar Garcia-Hernandez ◽  
...  
Keyword(s):  
Atomic Scale ◽  
Molecular Precursor

Initial stages of oxygen adsorption on Si(111). II. The molecular precursor

1989 ◽  
Vol 40 (2) ◽  
pp. 1130-1145 ◽  
Author(s):  
U. Höfer ◽  
P. Morgen ◽  
W. Wurth ◽  
E. Umbach
Keyword(s):  
Oxygen Adsorption ◽  
Molecular Precursor

Ba4Ta2O9 Oxide Prepared from an Oxalate-Based Molecular Precursor—Characterization and Properties

2013 ◽  
Vol 52 (24) ◽  
pp. 14299-14308 ◽  
Author(s):  
Lidija Androš ◽  
Marijana Jurić ◽  
Jasminka Popović ◽  
Ana Šantić ◽  
Predrag Lazić ◽  
...  
Keyword(s):  
Molecular Precursor
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