Cation Distribution in CuFe2-xCrxO4 Spinels Studied by Neutron Diffraction and Its Effect on Catalytic Properties in Water Gas Shift Reaction
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Materials Chemistry and Physics
ISSN: 0254-0584
, E-ISSN: 1879-3312
|
| Вых. Данные |
Год: 2018,
Том: 211,
Страницы: 278-282
Страниц
: 5
DOI:
10.1016/j.matchemphys.2018.02.048
|
| Ключевые слова |
CuFe2-xCrxО4 spinels, neutron diffraction, spinel inversion, cation distribution, LT WGSR |
| Авторы |
Plyasova L.M.
1
,
Minyukova T.P.
1
,
Yurieva T.M.
1
,
Uyanga E.
2
,
Bobrikov I.A.
2
,
Zaikovskii V.I.
1
,
Balagurov A.M.
2,3
|
| Организации |
| 1 |
Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia
|
| 2 |
Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
|
| 3 |
Lomonosov Moscow State University, Physics Department, Moscow, Russia
|
|
Информация о финансировании (2)
|
1
|
Федеральное агентство научных организаций России
|
0303-2016-0013
|
|
2
|
Российский фонд фундаментальных исследований
|
18-02-00325
|
Neutron diffraction was used to determine structural characteristics of a series of CuFe2-xCrxO4 (х = 0 ÷ 2) spinels. The range of Fe/Cr ratios ensuring the occurrence of cubic and tetragonal spinel modifications was refined. The distribution of cations between octa- and tetrahedral positions was estimated. A correlation between distribution of the catalytically active Cu2+ cations in the spinel structure and activation energy of the low-temperature water gas shift reaction was revealed.