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Exsolution-like synthesis of Ni/(Nd2O3,CaO) nanocomposites from Nd2-xCaxNiO4 precursors for catalytic applicationsстатья
Дата последнего поиска статьи во внешних источниках: 1 июня 2022 г.
- Авторы: Malyshev Sergey A., Shlyakhtin Oleg A., Loktev Alexey S., Mazo Galina N., Timofeev Grigoriy M., Mukhin Igor E., Kaplin Igor Yu, Svetogorov Roman D., Valeev Rishat G., Dedov Alexey G.
- Журнал: Journal of Solid State Chemistry
- Том: 312
- Год издания: 2022
- Издательство: Elsevier B.V.
- Местоположение издательства: Netherlands
- Номер статьи: 123267
- DOI: 10.1016/j.jssc.2022.123267
- Аннотация: A series of K2NiF4-like complex oxides Nd2-xCaxNiO4 (x = 0–0.4) was obtained by the freeze drying synthesis method. Thermal decomposition of these precursors in H2 at 900 oC resulted in the formation of Ni/(Nd2O3,CaO) composites with different Nd2O3/CaO ratios. Their microstructure was similar to the products of the redox exsolution of perovskites: spherical 30 nm particles of Ni metal were allocated at the surface of dense agglomerates of Nd2O3 and CaO grains. The as-obtained composites demonstrated significant catalytic activity, selectivity, and stability in the reactions of dry reforming and partial oxidation of methane (DRM and POM,respectively) at T >= 800 oC.
- Добавил в систему: Локтев Алексей Сергеевич