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Effect of Ce/Zr Composition on Structure and Properties of Ce1−xZrxO2 Oxides and Related Ni/Ce1−xZrxO2 Catalysts for CO2 Methanation Научная публикация

Журнал Nanomaterials
, E-ISSN: 2079-4991
Вых. Данные Год: 2022, Том: 12, Номер: 18, Номер статьи : 3207, Страниц : 16 DOI: 10.3390/nano12183207
Ключевые слова Ni/Ce1-xZrxO2 catalysts; mixed oxides; structure; microstructure; methanation; carbon dioxide
Авторы Pakharukova Vera P. 1 , Potemkin Dmitriy I. 1 , Rogozhnikov Vladimir N. 1 , Stonkus Olga A. 1 , Gorlova Anna M. 1,2 , Nikitina Nadezhda A. 1,3 , Suprun Evgeniy A. 1 , Brayko Andrey S. 1 , Rogov Vladimir A. 1 , Snytnikov Pavel V. 1
Организации
1 Boreskov Institute of Catalysis SB RAS, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
2 Department of Natural Sciences, Novosibirsk State University, Pirogova Street 2, 630090 Novosibirsk, Russia
3 Department of Chemistry, Moscow State University, Leninskie Gory St., 1, 119991 Moscow, Russia

Информация о финансировании (1)

1 Российский научный фонд 21-73-20075

Реферат: Ce1−xZrxO2 oxides (x = 0.1, 0.25, 0.5) prepared via the Pechini route were investigated using XRD analysis, N2 physisorption, TEM, and TPR in combination with density functional theory calculations. The Ni/Ce1−xZrxO2 catalysts were characterized via XRD analysis, SEM-EDX, TEM-EDX, and CO chemisorption and tested in carbon dioxide methanation. The obtained Ce1−xZrxO2 materials were single-phase solid solutions. The increase in Zr content intensified crystal structure strains and favored the reducibility of the Ce1−xZrxO2 oxides but strongly affected their microstructure. The catalytic activity of the Ni/Ce1−xZrxO2 catalysts was found to depend on the composition of the Ce1−xZrxO2 supports. The detected negative effect of Zr content on the catalytic activity was attributed to the decrease in the dispersion of the Ni0 nanoparticles and the length of metal–support contacts due to the worsening microstructure of Ce1−xZrxO2 oxides. The improvement of the redox properties of the Ce1−xZrxO2 oxide supports through cation modification can be negated by changes in their microstructure and textural characteristics.
Библиографическая ссылка: Pakharukova V.P. , Potemkin D.I. , Rogozhnikov V.N. , Stonkus O.A. , Gorlova A.M. , Nikitina N.A. , Suprun E.A. , Brayko A.S. , Rogov V.A. , Snytnikov P.V.
Effect of Ce/Zr Composition on Structure and Properties of Ce1−xZrxO2 Oxides and Related Ni/Ce1−xZrxO2 Catalysts for CO2 Methanation
Nanomaterials. 2022. V.12. N18. 3207 :1-16. DOI: 10.3390/nano12183207 WOS Scopus РИНЦ CAPlusCA PMID OpenAlex
Даты:
Поступила в редакцию: 25 авг. 2022 г.
Принята к публикации: 10 сент. 2022 г.
Опубликована в печати: 15 сент. 2022 г.
Опубликована online: 15 сент. 2022 г.
Идентификаторы БД:
Web of science: WOS:000858748600001
Scopus: 2-s2.0-85138658864
РИНЦ: 50357854
Chemical Abstracts: 2022:2513836
Chemical Abstracts (print): 180:225245
PMID (PubMed): 36144993
OpenAlex: W4296052473
Цитирование в БД:
БД Цитирований
Scopus 8
Web of science 8
РИНЦ 7
OpenAlex 9
Альметрики: