Comparative Study of Structural Properties of Bulk and Aluminum Oxide Supported Ce1–xNixOy Oxides Full article
| Journal |
Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 2024, Volume: 65, Number: 9, Pages: 1692-1706 Pages count : 15 DOI: 10.1134/S0022476624090026 | ||||||
| Tags | nanomaterials; complex oxides; solid solutions; powder XRD; Raman spectroscopy; electron microscopy. | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0033 |
Abstract:
A comparative analysis of the properties of bulk and aluminum oxide supported Ce1–xNixOy oxides (x = 0.2-0.8; y = 1.2-1.8) exhibiting catalytic activity in reforming reactions is performed using a complex of physical and chemical methods (thermal analysis, low-temperature nitrogen adsorption, powder XRD, Raman spectroscopy, electron microscopy, hydrogen temperature-programmed reduction). It is shown that the obtained samples are mesoporous materials with a specific surface area of 100±10 m2/g, containing substitutional solid solutions with fluorite cubic structure in their composition. In contrast to bulk Ce1–xNixOy complex oxide samples, the Ce1–xNixOy/Al2O3 material exhibits resistance to sintering during high temperature treatments in the course of activation and the subsequent reaction. At the same time, the formation temperature of metal Ni particles increases (540 °C vs. 350 °C) and the dispersion of the Ni0 phase after the reaction is preserved (6.5 nm vs. 50 nm). A relationship between characteristics of these materials and their functional properties is revealed.
Cite:
Matus E.V.
, Kovalenko E.N.
, Kapishnikov A.V.
, Leonova A.A.
, Nikitin A.P.
, O. A. S.
, Ushakov V.A.
, Yashnik S.A.
, Sukhova O.B.
, Kerzhentsev M.A.
Comparative Study of Structural Properties of Bulk and Aluminum Oxide Supported Ce1–xNixOy Oxides
Journal of Structural Chemistry. 2024. V.65. N9. P.1692-1706. DOI: 10.1134/S0022476624090026 WOS Scopus РИНЦ AN OpenAlex
Comparative Study of Structural Properties of Bulk and Aluminum Oxide Supported Ce1–xNixOy Oxides
Journal of Structural Chemistry. 2024. V.65. N9. P.1692-1706. DOI: 10.1134/S0022476624090026 WOS Scopus РИНЦ AN OpenAlex
Original:
Матус Е.В.
, Коваленко Е.Н.
, Капишников А.В.
, Леонова А.А.
, Никитин А.П.
, Стонкус О.А.
, Ушаков В.А.
, Яшник С.А.
, Сухова О.Б.
, Керженцев М.А.
Сравнительное исследование структурных свойств массивных и нанесенных на оксид алюминия оксидов Ce1-xNixOy
Журнал структурной химии. 2024. Т.65. №9. 131836 . DOI: 10.26902/jsc_id131836 РИНЦ OpenAlex
Сравнительное исследование структурных свойств массивных и нанесенных на оксид алюминия оксидов Ce1-xNixOy
Журнал структурной химии. 2024. Т.65. №9. 131836 . DOI: 10.26902/jsc_id131836 РИНЦ OpenAlex
Dates:
| Submitted: | Apr 15, 2024 |
| Accepted: | Apr 25, 2024 |
| Published print: | Sep 1, 2024 |
| Published online: | Oct 2, 2024 |
Identifiers:
| Web of science: | WOS:001329290400005 |
| Scopus: | 2-s2.0-85206075543 |
| Elibrary: | 71319857 |
| Chemical Abstracts: | 2024:2130404 |
| OpenAlex: | W4403063105 |