Physicochemistry of the surface of and exoemission from magnesium oxide

To optimize the processes of obtaining MgO with the highest possible exoemission intensity and time of decay, the influence of dehydration conditions and the subsequent adsorption of active gases (H 2 , O 2 , and H 2 O vapor) on its parameters was investigated. The nature of adsorption centers and e...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2010-02, Vol.84 (2), p.285-290
Main Author: Krylova, I. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Physical Chemistry
Physical Chemistry of Surface Phenomena
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Summary:To optimize the processes of obtaining MgO with the highest possible exoemission intensity and time of decay, the influence of dehydration conditions and the subsequent adsorption of active gases (H 2 , O 2 , and H 2 O vapor) on its parameters was investigated. The nature of adsorption centers and exoemission is discussed, based on the results obtained using the latest literature data on dehydration processes, as are the formation of defects on the MgO surface (coloring centers) and their interaction with hydrogen and oxygen. Due to the introduction of exoemissionally active MgO in the manufacturing of plasma displays, the literature data dealing with the exposure of extremely active grains of oxide monocrystals containing exoemission centers (OH-groups) are examined.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024410020214