Nanoconfinement Effects on Structural Anomalies in Imidazolium Ionic Liquids | Sciact - CRIS-система Института катализа

Nanoconfinement Effects on Structural Anomalies in Imidazolium Ionic Liquids Научная публикация

Журнал

Nanoscale
ISSN: 2040-3364 , E-ISSN: 2040-3372

Вых. Данные

Год: 2020, Том: 12, Номер: 46, Страницы: 23480–23487 Страниц : 8 DOI: 10.1039/d0nr06961b

Ключевые слова

Glass transitionIonic liquids; Metal-Organic Frameworks; Organometallics; Paramagnetic resonance

Авторы

Ivanov Mikhail Yu. ^1,2 , Poryvaev Artem S. ^1,2 , Polyukhov Daniil M. ^1,3 , Prikhod’ko Sergey A. ⁴ , Adonin Nicolay Yu. ⁴ , Fedin Matvey V. ^1,2

Организации

1	International Tomography Center SB RAS
2	Novosibirsk State University
3	N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS
4	Boreskov Institute of Catalysis SB RAS

Информация о финансировании (2)

1	Российский научный фонд	19-13-00071
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	14.W03.31.0034

Imidazolium Ionic Liquids (ILs) have been found to exhibit unusual nanostructuring behavior below their glass transition temperatures (Tg), which is ascribed to rearrangements in nonpolar domains formed by segregated alkyl chains. However, the dimensions required for such highly cooperative bulk phenomena are still unknown. In this work, we for the first time, investigate the effect of nanoconfinement on structural anomalies in imidazolium ILs. For this purpose, a series of ILs were embedded into the cavities of metal–organic framework (MOF) ZIF-8 and investigated using spin probes and Electron Paramagnetic Resonance (EPR) spectroscopy. The unusual nanostructuring near Tg, previously known for bulk ILs, was also observed for such nanoconfined ILs, and the amplitude of the anomaly was found to be dependent on the structure of the IL, thus showing the effects of molecular packing inside the MOF cavity. The first observation of structural anomalies in nanoconfined ILs opens perspectives for designing smart materials exhibiting these phenomena, and engaging MOFs as platforms creates the basis for potential applications of such functionalities.

Ivanov M.Y. , Poryvaev A.S. , Polyukhov D.M. , Prikhod’ko S.A. , Adonin N.Y. , Fedin M.V.
Nanoconfinement Effects on Structural Anomalies in Imidazolium Ionic Liquids
Nanoscale. 2020. V.12. N46. P.23480–23487. DOI: 10.1039/d0nr06961b WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	28 сент. 2020 г.
Принята к публикации:	19 окт. 2020 г.
Опубликована online:	19 окт. 2020 г.
Опубликована в печати:	14 дек. 2020 г.

Web of science:	WOS:000597751800008
Scopus:	2-s2.0-85097576913
РИНЦ:	45087983
Chemical Abstracts:	2020:2098889
OpenAlex:	W3098611710

БД	Цитирований
Scopus	30
Web of science	30
РИНЦ	31
OpenAlex	30