Sol–Gel Synthesis and Characterization of the Binary Ni–Mg–O Oxide System Научная публикация
| Журнал |
Journal of Sol-Gel Science and Technology
ISSN: 0928-0707 , E-ISSN: 1573-4846 |
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| Вых. Данные | Год: 2019, Том: 92, Номер: 1, Страницы: 208–214 Страниц : 7 DOI: 10.1007/s10971-019-05076-2 | ||||
| Ключевые слова | nanostructured MgO; doping; nickel oxide; characterization; reducibility | ||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Федеральное агентство научных организаций России | 0303-2016-0002 |
| 2 | Федеральное агентство научных организаций России | 0303-2016-0014 |
Реферат:
In this work, the binary Ni–Mg–O oxide system was prepared by means of a sol–gel technique, which provides high dispersity and uniform distribution of the nickel species within the MgO matrix. The samples were characterized by a scanning electron microscopy, a low-temperature nitrogen adsorption, and X-ray diffraction analysis. The reducibility of the prepared samples was tested in the reduction/oxidation cycles, thus modeling the conditions of a chemical looping. It was found that during the preparation procedure, a partial substitution of Mg2+ ions with Ni2+ ions resulting in formation of solid solution takes place. Reduction of the as-prepared sample in a temperature-programmed regime with heating up to 700 °C leads to decomposition of the solid solution and formation of dispersed particles of metallic nickel of 7 nm in size finely distributed within the MgO matrix. Subsequent oxidation transforms Ni0 species into NiO nanoparticles. Starting from the second reduction/oxidation cycle, the binary Ni–Mg–O system shows the reproducible behavior, and thus can be considered as a chemical looping agent.
Библиографическая ссылка:
Karnaukhov T.M.
, Vedyagin A.A.
, Cherepanova S.V.
, Rogov V.A.
, Mishakov I.V.
Sol–Gel Synthesis and Characterization of the Binary Ni–Mg–O Oxide System
Journal of Sol-Gel Science and Technology. 2019. V.92. N1. P.208–214. DOI: 10.1007/s10971-019-05076-2 WOS Scopus РИНЦ OpenAlex CAPlusCA
Sol–Gel Synthesis and Characterization of the Binary Ni–Mg–O Oxide System
Journal of Sol-Gel Science and Technology. 2019. V.92. N1. P.208–214. DOI: 10.1007/s10971-019-05076-2 WOS Scopus РИНЦ OpenAlex CAPlusCA
Даты:
| Поступила в редакцию: | 18 февр. 2019 г. |
| Принята к публикации: | 9 июл. 2019 г. |
| Опубликована online: | 16 июл. 2019 г. |
| Опубликована в печати: | 15 окт. 2019 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000483728100020 |
| ≡ Scopus: | 2-s2.0-85068998591 |
| ≡ РИНЦ: | 41612711 |
| ≡ OpenAlex: | W2960920386 |
| ≡ Chemical Abstracts: | 2019:1385860 |
| ≡ Chemical Abstracts (print): | 172:478609 |