Nanocomposites Comprised of Doped Cerium Dioxide and Lanthanum Manganite for Syngas Production
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Solid State Ionics
ISSN: 0167-2738
|
| Вых. Данные |
Год: 2006,
Том: 177,
Номер: 26-32,
Страницы: 2533-2538
Страниц
: 6
DOI:
10.1016/j.ssi.2006.02.027
|
| Ключевые слова |
Conductivity, Doped ceria, Lanthanum manganite, Nanocomposites, Structure, Synthesis |
| Авторы |
Frolova Y.V.
1
,
Sadykov V.A.
1
,
Alikina G.M.
1
,
Lukashevich A.I.
1
,
Moroz E.M.
1
,
Kochubey D.I.
1
,
Kriventsov V.V.
1
,
Zaikovskii V.I.
1
,
Zyryanov V.V.
2
,
Uvarov N.F.
2
|
| Организации |
| 1 |
Институт катализа им. Г.К. Борескова СО РАН
|
| 2 |
Институт химии твердого тела и механохимии СО РАН
|
|
Информация о финансировании (3)
|
1
|
North Atlantic Treaty Organization
|
SfP-980878
|
|
2
|
Международный научно-технический центр
|
3234
|
|
3
|
Российский фонд фундаментальных исследований
|
03-03-32340
|
Nanocomposites comprised of fluorite-like (Gd- or Pr-doped ceria) and perovskite-like (LaMnO3+δ) phases were prepared using a polymerized precursor (Pechini) route. Genesis of the structure of composites with annealing temperature has been studied by X-ray diffraction, Transmission Electron Microscopy and EXAFS. Up to 1300 °C, particle sizes of both fluorite and perovskite phases remain in the nano-range. Interaction between components is reflected in the increase of doped ceria lattice parameter and disordering of Mn coordination sphere. Despite this interaction, nanocomposites possess a high conductivity along with a high lattice oxygen mobility and reactivity. The addition of CoO improves sintering of nanocomposites.