Dry Reforming of Methane over 5%Ni/Ce1-xTixO2 Catalysts Obtained via Synthesis in Supercritical Isopropanol | Sciact - CRIS-система Института катализа

Dry Reforming of Methane over 5%Ni/Ce1-xTixO2 Catalysts Obtained via Synthesis in Supercritical Isopropanol Научная публикация

Журнал

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

Вых. Данные

Год: 2023, Том: 24, Номер: 11, Номер статьи : 9680, Страниц : 27 DOI: 10.3390/ijms24119680

Ключевые слова

methane dry reforming; supercritical synthesis; fluorite; ceria–titania; heterogeneous catalysis

Авторы

Smal Ekaterina ¹ , Bespalko Yulia ¹ , Arapova Marina ¹ , Fedorova Valeria ¹ , Valeev Konstantin ¹ , Eremeev Nikita ¹ , Sadovskaya Ekaterina ¹ , Krieger Tamara ¹ , Glazneva Tatiana ¹ , Sadykov Vladislav ¹ , Simonov Mikhail ¹

Организации

1	Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, 630090 Novosibirsk, Russia

Информация о финансировании (1)

Российский научный фонд

18-73-10167

A series of 5%Ni/Ce1-xTixO2 catalysts was prepared with nickel impregnation of mixed Ce–Ti oxides obtained via synthesis in supercritical isopropanol. All oxides have a cubic fluorite phase structure. Ti is incorporated into the fluorite structure. Small amounts of impurities of TiO2 or mixed Ce–Ti oxides appear with Ti introduction. Supported Ni is presented as the NiO or NiTiO3 perovskite phase. Ti introduction increases total samples reducibility and results in stronger interaction of supported Ni with the oxide support. The fraction of rapidly replaced oxygen and the average tracer diffusion coefficient also increase. The number of metallic nickel sites decreased with increasing Ti content. All catalysts except Ni-CeTi0.45 demonstrate close activity in tests of dry reforming of methane. The lower activity of Ni-CeTi0.45 can be connected to Ni decoration with species of the oxide support. The incorporation of Ti prevents detachment of Ni particles from the surface and their sintering during dry reforming of methane.

Smal E. , Bespalko Y. , Arapova M. , Fedorova V. , Valeev K. , Eremeev N. , Sadovskaya E. , Krieger T. , Glazneva T. , Sadykov V. , Simonov M.
Dry Reforming of Methane over 5%Ni/Ce1-xTixO2 Catalysts Obtained via Synthesis in Supercritical Isopropanol
International Journal of Molecular Sciences. 2023. V.24. N11. 9680 :1-27. DOI: 10.3390/ijms24119680 WOS Scopus РИНЦ CAPlus PMID OpenAlex

Поступила в редакцию:	24 апр. 2023 г.
Принята к публикации:	31 мая 2023 г.
Опубликована в печати:	2 июн. 2023 г.
Опубликована online:	2 июн. 2023 г.

Web of science:	WOS:001006567700001
Scopus:	2-s2.0-85161870906
РИНЦ:	54096458
Chemical Abstracts:	2023:1244321
PMID (PubMed):	37298629
OpenAlex:	W4379184988

БД	Цитирований
Scopus	5
Web of science	5
РИНЦ	3
OpenAlex	4