Water on amorphous silicas: INS study

A comparative INS study of the vibrational spectra of the water adsorbed on three dispersed amorphous silicas(aerosil, silica gel and aerogel) is presented. The spectra have been obtained as differences between the spectra of the "as-prepared" air-dry samples and the air-dried ones. The spectra of the adsorbed (a) and/or retained water are separated. the a-water spectra in the above three cases are substantially different indicating the different configurations of the sample surface active centers. This phenomenon is suggested to be caused by the polymorphism of the "as-prepared" material cores, due to the polymerization peculiarities when manufacturing the products by different technologies. © 1992.

Авторы
Natkaniec I.1 , Fricke J.2 , Khavryutchenko V.3 , Markichev I. 4 , Muzychka A.1 , Ogenko V.3 , Reichenauer G.2 , Sheka E. 4
Редакторы
-
Издательство
Elsevier Science Publishers B.V., Amsterdam
Номер выпуска
PART 1
Язык
Английский
Страницы
522-524
Статус
Опубликовано
Подразделение
-
Номер
-
Том
180-181
Год
1992
Организации
  • 1 Joint Institute for Nuclear Research, 141980 Dubna, Russian Federation
  • 2 University of Würzburg, 8700 Würzburg, Germany
  • 3 Institute of Surface Chemistry, Ac. Sci. Ukr.SSR, 252028-Kiev, Ukraine
  • 4 Patrice Lumumba Peoples' Friendship University, 117302 Moscow, Russian Federation
Ключевые слова
Molecular Vibrations - Spectrum Analysis; Neutrons - Scattering; Polymerization; Silica - Amorphous; Water - Adsorption; Aerogel; Aerosil; Polymorphism; Water
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/1050/