Sciact
  • EN
  • RU

Diffusion of CH4 in ZIF-8 Studied by Quasi-Elastic Neutron Scattering Научная публикация

Журнал The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455
Вых. Данные Год: 2015, Том: 119, Номер: 28, Страницы: 16115-16120 Страниц : 6 DOI: 10.1021/acs.jpcc.5b04259
Ключевые слова Characteristic timeEffective sizeMesoscopic techniquesMolecular levelsOrganic linkersQuasielastic neutron scattering
Авторы Jobic H. 1 , Kolokolov D.I. 2,4 , Stepanov A.G. 2,4 , Koza M.M. 3 , Ollivier J. 3
Организации
1 Institut de Recherches sur la Catalyse et l’Environnement de Lyon, CNRS, Universitéde Lyon 1, 2 Av. A. Einstein, 69626 Villeurbanne, France
2 Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk 630090, Russia
3 Institut Laue Langevin, BP 156, 38042 Grenoble, France
4 Faculty of Natural Sciences, Department of Physical Chemistry, Novosibirsk State University, Pirogova Street 2, Novosibirsk 630090, Russia

Информация о финансировании (1)

1 Федеральное агентство научных организаций России V.44.1.16.

Реферат: Quasi-elastic neutron scattering (QENS) measurements have been performed to characterize at the molecular level the diffusion of CH4 adsorbed at various concentrations in ZIF-8. This allows to compare for the first time diffusivities obtained in a MOF by microscopic and mesoscopic techniques. The good agreement which is observed between the different methods shows that there are no defects obstructing diffusion, which is often the case in zeolites. Even if the effective size of ZIF-8 windows is larger than the diameter derived from crystallography, the characteristic time for intercage diffusion (∼ns) is much longer than the time between jumps within a cage (∼10 ps), indicating that the organic linkers severely hinder molecule passage.
Библиографическая ссылка: Jobic H. , Kolokolov D.I. , Stepanov A.G. , Koza M.M. , Ollivier J.
Diffusion of CH4 in ZIF-8 Studied by Quasi-Elastic Neutron Scattering
The Journal of Physical Chemistry C. 2015. V.119. N28. P.16115-16120. DOI: 10.1021/acs.jpcc.5b04259 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 4 мая 2015 г.
Опубликована online: 2 июл. 2015 г.
Опубликована в печати: 16 июл. 2015 г.
Идентификаторы БД:
Web of science: WOS:000358337700037
Scopus: 2-s2.0-84937108845
РИНЦ: 23990630
Chemical Abstracts: 2015:1061527
Chemical Abstracts (print): 163:165379
OpenAlex: W2512550757
Цитирование в БД:
БД Цитирований
Web of science 31
Scopus 31
РИНЦ 30
OpenAlex 30
Альметрики: