Sorption of xenon in zeolite rho: A thermodynamic/simulation study

Molecular dynamics simulations of the sorption of xenon at 300 K in zeolite rho are reported. The xenon-solid potential is taken to be a pairwise sum of xenon-oxide interactions, with parameters adjusted to give agreement with the experimental Henry's law constants. Energies of adsorption and the distributions of sorbed atoms in the cage/window system were evaluated as a function of the xenon loading in the zeolite. It is shown that increasing loading produces an increase in the (negative) xenon-xenon average energy which is compensated by a decrease in the (negative) xenon-solid energy. The atomic distributions show that the xenon atoms are initially tightly sorbed in the cage windows. Once these are filled, additional xenons show chaotic, fluidlike trajectories in the cages. However, at the highest xenon loadings, even the atoms in the cages become localized into an ordered structure. © 1993 American Chemical Society.

Авторы
Vernov A.V. 1, 3 , Steele W.A.1 , Abrams L.2
Редакторы
-
Издательство
-
Номер выпуска
29
Язык
Английский
Страницы
7660-7664
Статус
Опубликовано
Подразделение
-
Номер
-
Том
97
Год
1993
Организации
  • 1 Department of Chemistry, Pennsylvania State University, University Park, PA 16802, United States
  • 2 Dupont Company, Central Research and Development, Experimental Station, P.O. Box 80228, Wilmington, DE 19880-0356, United States
  • 3 Peoples' Friendship University, Department of Natural Science, Lab. of Mathematical Simulation of Physical and Chemical Processes, M.-Maklaya, 6, Moscow 117198, Russian Federation
Ключевые слова
-
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/1022/