XPS and HR TEM Elucidation of the Diversity of Titania-Supported Single-Site Ir Catalyst Performance in Spin-Selective Propene Hydrogenation | Sciact - CRIS-система Института катализа

XPS and HR TEM Elucidation of the Diversity of Titania-Supported Single-Site Ir Catalyst Performance in Spin-Selective Propene Hydrogenation Научная публикация

Журнал

International Journal of Molecular Sciences
ISSN: 1422-0067 , E-ISSN: 1661-6596

Вых. Данные

Год: 2023, Том: 24, Номер: 21, Номер статьи : 15643, Страниц : 14 DOI: 10.3390/ijms242115643

Ключевые слова

XPS; NMR; heterogeneous catalysis; hydrogenation; single-site catalysts

Авторы

Nartova Anna V. ¹ , Kvon Ren I. ¹ , Kovtunova Larisa M. ¹ , Skovpin Ivan V. ² , Koptyug Igor V. ² , Bukhtiyarov Valerii I. ¹

Организации

1	Department of Physical-Chemical Methods of Investigation, Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, 630090 Novosibirsk, Russia
2	Laboratory of Magnetic Resonance Microimaging, International Tomography Center SB RAS, Institutskaya St. 3A, 630090 Novosibirsk, Russia

Информация о финансировании (2)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	075-15-2021-580
2	Российский научный фонд	19-13-00172-П

Immobilized [Ir(COD)Cl]2-Linker/TiO2 catalysts with linkers containing Py, P(Ph)2 and N(CH3)2 functional groups were prepared. The catalysts were tested via propene hydrogenation with parahydrogen in a temperature range from 40 °C to 120 °C which was monitored via NMR. The catalytic behavior of [Ir(COD)Cl]2-Linker/TiO2 is explained on the basis of quantitative and qualitative XPS data analysis performed for the catalysts before and after the reaction at 120 °C. It is shown that the temperature dependence of propene conversion and the enhancement of the NMR signal are explained via a combination of the stabilities of both the linker and immobilized [Ir(COD)Cl]2 complex. It is demonstrated that the N(CH3)2-linker is the most stable at the surface of TiO2 under used reaction conditions. As a result, only this sample shows a rise in the enhancement of the NMR signal in the 100–120 °C temperature range.

Nartova A.V. , Kvon R.I. , Kovtunova L.M. , Skovpin I.V. , Koptyug I.V. , Bukhtiyarov V.I.
XPS and HR TEM Elucidation of the Diversity of Titania-Supported Single-Site Ir Catalyst Performance in Spin-Selective Propene Hydrogenation
International Journal of Molecular Sciences. 2023. V.24. N21. 15643 :1-14. DOI: 10.3390/ijms242115643 WOS Scopus РИНЦ CAPlus PMID OpenAlex

Поступила в редакцию:	22 сент. 2023 г.
Принята к публикации:	24 окт. 2023 г.
Опубликована online:	27 окт. 2023 г.
Опубликована в печати:	1 нояб. 2023 г.

Web of science:	WOS:001099443100001
Scopus:	2-s2.0-85176610775
РИНЦ:	55920989
Chemical Abstracts:	2023:2384323
PMID (PubMed):	37958626
OpenAlex:	W4387973667

БД	Цитирований
OpenAlex	8
Scopus	7
Web of science	6
РИНЦ	5