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Sr, Mg-Substituted Titanates on the Basis of La2TiO5: Effect of Substitution on Catalytic Activity in the Oxidative Methane Coupling Научная публикация

Журнал Materials Today Chemistry
ISSN: 2468-5194
Вых. Данные Год: 2022, Том: 26, Номер статьи : 101124, Страниц : 10 DOI: 10.1016/j.mtchem.2022.101124
Ключевые слова Layered perovskites; Strontium doping; Magnesium doping; Oxidative coupling of methane
Авторы Ivanova Y. 1 , Petrov R. 1 , Reshetnikov S. 1 , Isupova L. 1
Организации
1 Boreskov Institute of Catalysis SB RAS, Pr. Lavrentieva, 5, Novosibirsk, 630090, Russia

Информация о финансировании (1)

1 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0239-2021-0004

Реферат: Based on La2TiO5 layered perovskite, the complex oxide materials Sr2αLa2-2αTiO5-δ and Mg2αLa2-2αTiO5-δ (α = 0–1) were synthesized by sol-precipitation method. The X-ray diffraction analysis, the specific surface area, and scanning electron microscopy techniques showed that Sr-substituted samples contain phases of the ‘layered’ perovskite (SrLa)2TiO5-δ as well as La2O3, La(OH)3 and TiO2. The Mg-substituted samples contain the phases of the ‘double’ perovskites (Mg,La)TiO3-δ, and La(OH)3. The specific surface area of as prepared samples varied within 0.5–4.2 m2/g. The catalytic properties of the materials were investigated by the reaction the oxidative coupling of methane to ethane in a fixed-bed microcatalytic reactor at temperatures from 600 to 950 °C. Most active in the OCM reaction were the samples in which the substitution degree of lanthanum α was equal to 0.1–0.3. Sr-substituted samples showed higher activity than Mg-substituted ones. The best activity was revealed for Sr2αLa2-2αTiO5-δ (α = 0.1).
Библиографическая ссылка: Ivanova Y. , Petrov R. , Reshetnikov S. , Isupova L.
Sr, Mg-Substituted Titanates on the Basis of La2TiO5: Effect of Substitution on Catalytic Activity in the Oxidative Methane Coupling
Materials Today Chemistry. 2022. V.26. 101124 :1-10. DOI: 10.1016/j.mtchem.2022.101124 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 16 мая 2022 г.
Принята к публикации: 1 авг. 2022 г.
Опубликована online: 5 сент. 2022 г.
Опубликована в печати: 1 дек. 2022 г.
Идентификаторы БД:
Web of science: WOS:000876817200002
Scopus: 2-s2.0-85137084542
РИНЦ: 50384191
Chemical Abstracts: 2022:2448163
OpenAlex: W4294611901
Цитирование в БД:
БД Цитирований
Scopus 2
Web of science 2
РИНЦ 1
OpenAlex 2
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