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Mechanism of the effect of surface-active substances on structure formation in silica. III. Contribution of nitrogen-containing substances to the structural rearrangement of silicaстатья
Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
- Авторы: Danchevskaya M.N., Ovchinnikova O.G., Kreisberg V.A., Rakcheev V.P.
- Журнал: Russian Journal of Physical Chemistry A
- Том: 62
- Номер: 7
- Год издания: 1988
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 954
- Последняя страница: 957
- Аннотация: The mechanism of the action of nitrogen-containing compounds (ammonia and hydrazine) on the formation of an ordered structure in silica during hydrothermal has been studed by electron spin resonance, mass sprctrometry, and X-ray phase analysis. We have established that nitrogen-containing substances at high temperatures (400 degree C) and high water vapour pressures (200 atm) produce various changes resulting in the formation of strong Si-NH-Si bonds, which act as nucleation centres for the elements of a new, ordered structure.
- Добавил в систему: Крейсберг Валерий Абрамович