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Effect of MAF-6 Crystal Size on Its Physicochemical and Catalytic Properties in the Cycloaddition of CO2 to Propylene Oxide Научная публикация

Журнал Catalysts
ISSN: 2073-4344
Вых. Данные Год: 2021, Том: 11, Номер: 9, Номер статьи : 1061, Страниц : 17 DOI: 10.3390/catal11091061
Ключевые слова zinc zeolitic imidazolate frameworks; MAF-5; MAF-6; effect of particle size; cycloaddition; CO2; propylene carbonate; propylene oxide
Авторы Timofeeva Maria N. 1,2 , Lukoyanov Ivan A. 1,2 , Panchenko Valentina N. 1,2 , Bhadra Biswa Nath 3 , Gerasimov Evgenii Yu 1 , Jhung Sung Hwa 3
Организации
1 Boreskov Institute of Catalysis SB RAS
2 Novosibirsk State Technical University
3 Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University

Информация о финансировании (2)

1 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0239-2021-0008
2 National Research Foundation of Korea NRF-2020R1A4A1018393

Реферат: Zeolitic imidazolate frameworks MAF-5 and MAF-6 based on Zn2+ and 2-ethylimidazole were demonstrated to be efficient heterogeneous catalysts in solvent-free coupling of CO2 and propylene oxide (PO) to produce propylene carbonate (PC) at 0.8 MPa of CO2 and 80 °C. Activity of MAF-5 was lower in comparison with MAF-6 due to the difference in their structural and textural characteristics. MAF-6 samples with particle size of 190 ± 20, 360 ± 30, and 810 ± 30 nm were prepared at room temperature from [Zn(NH3)4](OH)2 and 2-ethylimidazole. Control of particle size was achieved by variation of type of alcohol in alcohol/cyclohexane media for the preparation of MAF-6. According to this comprehensive study, the yield of PC was found to decrease with increasing crystal size of the MAF-6 material, which was related to the change in textural properties and the number and localization of active sites. The combination of MAF-6 with particle size of with particle size of 190 ± 20 nm and tetrabutylammonium bromide ([n-Bu4N]Br) as co-catalyst led to an approximately 4-fold enhancement in the yield of PC (80.5%). Compared with reported ZIFs catalysts, the efficiencies of MAF-5/[n-Bu4N]Br and MAF-6/[n-Bu4N]Br binary systems were comparable and higher under similar reaction conditions.
Библиографическая ссылка: Timofeeva M.N. , Lukoyanov I.A. , Panchenko V.N. , Bhadra B.N. , Gerasimov E.Y. , Jhung S.H.
Effect of MAF-6 Crystal Size on Its Physicochemical and Catalytic Properties in the Cycloaddition of CO2 to Propylene Oxide
Catalysts. 2021. V.11. N9. 1061 :1-17. DOI: 10.3390/catal11091061 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 10 авг. 2021 г.
Принята к публикации: 30 авг. 2021 г.
Опубликована online: 31 авг. 2021 г.
Опубликована в печати: 1 сент. 2021 г.
Идентификаторы БД:
Web of science: WOS:000699384500001
Scopus: 2-s2.0-85114084507
РИНЦ: 47012878
Chemical Abstracts: 2021:2329669
OpenAlex: W3197310678
Цитирование в БД:
БД Цитирований
Scopus 21
Web of science 18
РИНЦ 21
OpenAlex 25
Альметрики: