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Vibrational spectra of carbon dioxide adsorbed in nanoporous glass: from partial coverage of the pore wall to condensation in the pore volumeстатья
Статья опубликована в журнале из списка RSCI Web of Science
Статья опубликована в журнале из перечня ВАК- Авторы: Arakcheev V.G., Morozov V.B.
- Журнал: Журнал прикладной спектроскопии
- Том: 83
- Номер: 6-16
- Год издания: 2016
- Издательство: Наука и техника
- Местоположение издательства: Минск
- Первая страница: 188
- Последняя страница: 188
- Аннотация: The adsorption behavior of carbon dioxide in nanoporous Vycor glass was studied by coherent anti-Stokes Raman scattering spectroscopy. The intensity and profile of the CO2 band at 1388 cm-1 were measured in a wide pressure range providing the transition from partial surface coverage of the pore walls up to complete condensation in the pore volume. The contributions of the gaseous, surface-adsorbed, and liquid-like carbon dioxide have been distinguished in the spectrum even when the three states coexist. The results show that the liquid-like phase appears when the amount of the surface adsorbed fluid is below the monolayer coverage. Developed approach is applicable to characterize the fluid behavior in the pores of transparent nanoporous materials with various pore size, shape, ordering, and interconnection.
- Добавил в систему: Аракчеев Владимир Генрихович