EPR studies of [O−·O2] complexes on MgO surface and their stabilization centers

1991 ◽  
Vol 44 (1) ◽  
pp. 171-177 ◽  
Author(s):  
A. M. Volodin
Keyword(s):  
Stabilization Centers ◽  
Mgo Surface

Characterization of Surface Chemical States of a Thick Insulator: Chemical State Imaging on MgO Surface

2005 ◽  
Vol 44 (2) ◽  
pp. 861-864 ◽  
Author(s):  
Yeonjin Yi ◽  
Sangwan Cho ◽  
Myungkeun Noh ◽  
Chung-Nam Whang ◽  
Kwangho Jeong ◽  
...  
Keyword(s):  
Chemical State ◽  
Surface Chemical ◽  
Chemical States ◽  
Mgo Surface

Molecular orbital cluster model study of bonding and vibrations of CO adsorbed on MgO surface

1992 ◽  
Vol 42 (5) ◽  
pp. 1115-1139 ◽  
Author(s):  
Gianfranco Pacchioni ◽  
Giuseppe Cogliandro ◽  
Paul S. Bagus
Keyword(s):  
Molecular Orbital ◽  
Cluster Model ◽  
Model Study ◽  
Mgo Surface

The adsorption and oxidation of SO2 on MgO surface: experimental and DFT calculation studies

2020 ◽  
Vol 7 (4) ◽  
pp. 1092-1101 ◽  
Author(s):  
Honghong Wang ◽  
Cheng Zhong ◽  
Qingxin Ma ◽  
Jinzhu Ma ◽  
Hong He
Keyword(s):  
Reaction Mechanisms ◽  
Dft Calculation ◽  
Synergistic Effects ◽  
Heterogeneous Oxidation ◽  
Mgo Surface

The reaction mechanisms and synergistic effects of NO2/O2 on the heterogeneous oxidation of SO2 to sulfate on a MgO surface.

Structure and catalytic combustion activity of atomically dispersed Pt species at MgO surface

1999 ◽  
Vol 188 (1-2) ◽  
pp. 313-324 ◽  
Author(s):  
K. Asakura ◽  
H. Nagahiro ◽  
N. Ichikuni ◽  
Y. Iwasawa
Keyword(s):  
Catalytic Combustion ◽  
Mgo Surface

QUANTUM CHEMISTRY OF OXIDE SURFACES: FROM CO CHEMISORPTION TO THE IDENTIFICATION OF THE STRUCTURE AND NATURE OF POINT DEFECTS ON MgO

2000 ◽  
Vol 07 (03) ◽  
pp. 277-306 ◽  
Author(s):  
GIANFRANCO PACCHIONI
Keyword(s):  
Single Crystal ◽  
Oxide Surfaces ◽  
Comparison Of Experiments ◽  
Powder Samples ◽  
Adsorption Of Co ◽  
Single Oxygen ◽  
Critical Overview ◽  
Mgo Surface ◽  
Experimental And Theoretical Studies

The electronic structure and chemisorption properties of the surface of ionic crystals are reviewed, with emphasis on two topics: a critical overview of the experimental and theoretical studies of the adsorption of CO on single crystal and polycrystalline MgO, and a discussion on the most important defect centers at the MgO surface — low-coordinated sites, single oxygen and magnesium vacancies, divacancies, and impurity or substitutional atoms. The two subjects are to some extent interconnected. From the detailed theoretical and experimental study of the adsorption of a nonreactive molecule like CO and from the comparison of experiments done on single crystal or thin films and on powder samples, one can learn about the nature and concentration of the defects at the surface. A more precise characterization of defects requires, however, a careful spectroscopic investigation and a direct comparison with quantum-chemical calculations of both geometric structure and observable properties. The combined theoretical–experimental approach offers new opportunities for a better understanding of the complexity of oxide surfaces.

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