The Interaction of Copper-Containing Spinels CuFe2O4 and CuFeCrO4 with Hydrogen Научная публикация
| Журнал |
Materials Research Bulletin
ISSN: 0025-5408 |
||||
|---|---|---|---|---|---|
| Вых. Данные | Год: 2019, Том: 118, Номер статьи : 110481, Страниц : 8 DOI: 10.1016/j.materresbull.2019.05.006 | ||||
| Ключевые слова | CuFe2O4, СuFeCrO4, H2 reduction, In situ XRD, In situ IRS | ||||
| Авторы |
|
||||
| Организации |
|
Информация о финансировании (1)
| 1 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | ГЗ-2017-2020 |
Реферат:
The interaction of hydrogen with copper-containing spinels CuFe2O4 and CuFeCrO4, which are the catalysts for hydrogenation, alkylation and other reactions, was studied. Copper ions of ferrite are reduced in a reductive atmosphere and segregated to the spinel Fe3O4 surface with the formation of Cu0 nanoparticles; their interaction with O2-contaning (less than 1 vol.%) helium leads to the oxidation to Cu2O or CuO. In a reductive medium, copper ferrite-chromite CuFeCrO4 segregates copper ions from spinel, which are reduced to Cu0 nanoparticles on the surface of CuFeCr-spinel. Charge compensation of spinel structure occurs due to formation of OH groups and
by the partial transition Fе3+ – Fe2+. Upon mild reoxidation, Cu0 atoms partially return into the spinel structure and partially form the Cu2O phase.
Библиографическая ссылка:
Plyasova L.M.
, Kardash T.Y.
, Svintsitskiy D.A.
, Paukshtis E.A.
, Shtertser N.V.
, Minyukova T.P.
The Interaction of Copper-Containing Spinels CuFe2O4 and CuFeCrO4 with Hydrogen
Materials Research Bulletin. 2019. V.118. 110481 :1-8. DOI: 10.1016/j.materresbull.2019.05.006 WOS Scopus РИНЦ CAPlus OpenAlex
The Interaction of Copper-Containing Spinels CuFe2O4 and CuFeCrO4 with Hydrogen
Materials Research Bulletin. 2019. V.118. 110481 :1-8. DOI: 10.1016/j.materresbull.2019.05.006 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 23 нояб. 2018 г. |
| Принята к публикации: | 8 мая 2019 г. |
| Опубликована online: | 8 мая 2019 г. |
| Опубликована в печати: | 1 окт. 2019 г. |
Идентификаторы БД:
| Web of science: | WOS:000480375000004 |
| Scopus: | 2-s2.0-85066053272 |
| РИНЦ: | 41675420 |
| Chemical Abstracts: | 2019:1031209 |
| OpenAlex: | W2943921936 |