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Defibrillation of Soft Porous Metal-Organic Frameworks with Electric Fields Научная публикация

Журнал Science
ISSN: 0036-8075 , E-ISSN: 1095-9203
Вых. Данные Год: 2017, Том: 358, Номер: 6361, Страницы: 347-351 Страниц : 5 DOI: 10.1126/science.aal2456
Ключевые слова MIXED MATRIX MEMBRANES; ZIF-8; FLEXIBILITY; SELECTIVITY; CRYSTALS; MOBILITY; LINKERS; RING
Авторы Knebel A. 1 , Geppert B. 1 , Volgmann K. 1 , Kolokolov D.I. 2,3 , Stepanov A.G. 2,3 , Twiefel J. 4 , Heitjans P. 1 , Volkmer D. 5 , Caro J. 1
Организации
1 Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, 30167 Hannover, Germany
2 Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Novosibirsk 630090, Russia
3 Novosibirsk State University, Novosibirsk 630090, Russia
4 Institute for Dynamic and Vibration Research, Leibniz University Hannover, 30167 Hannover, Germany
5 Institute of Physics, Chair of Solid State and Materials Chemistry, Augsburg University, 86135 Augsburg, Germany

Информация о финансировании (4)

1 Федеральное агентство научных организаций России 0303-2016-0003
2 Российский научный фонд 17-73-10135
3 German Research Foundation CA 147/20-1
4 German Research Foundation VO 829/12-1

Реферат: Gas transport through metal-organic framework membranes (MOFs) was switched in situ by applying an external electric field (E-field). The switching of gas permeation upon E-field polarization could be explained by the structural transformation of the zeolitic imidazolate framework ZIF-8 into polymorphs with more rigid lattices. Permeation measurements under a direct-current E-field poling of 500 volts per millimeter showed reversibly controlled switching of the ZIF-8 into polar polymorphs, which was confirmed by x-ray diffraction and ab initio calculations. The stiffening of the lattice causes a reduction in gas transport through the membrane and sharpens the molecular sieving capability. Dielectric spectroscopy, polarization, and deuterium nuclear magnetic resonance studies revealed low-frequency resonances of ZIF-8 that we attribute to lattice flexibility and linker movement. Upon E-field polarization, we observed a defibrillation of the different lattice motions.
Библиографическая ссылка: Knebel A. , Geppert B. , Volgmann K. , Kolokolov D.I. , Stepanov A.G. , Twiefel J. , Heitjans P. , Volkmer D. , Caro J.
Defibrillation of Soft Porous Metal-Organic Frameworks with Electric Fields
Science. 2017. V.358. N6361. P.347-351. DOI: 10.1126/science.aal2456 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Файлы: Полный текст от издателя
Даты:
Поступила в редакцию: 1 нояб. 2016 г.
Принята к публикации: 19 сент. 2017 г.
Опубликована online: 19 окт. 2017 г.
Опубликована в печати: 20 окт. 2017 г.
Идентификаторы БД:
Web of science: WOS:000413251000038
Scopus: 2-s2.0-85032496887
РИНЦ: 31059217
Chemical Abstracts: 2017:1664118
PMID (PubMed): 29051376
OpenAlex: W2765446679
Цитирование в БД:
БД Цитирований
Web of science 331
Scopus 337
РИНЦ 322
OpenAlex 373
Альметрики: