Structural Features and Transport Properties of La(Sr)Fe1-xNixO3-δ– Ce0.9Gd0.1O2-δ Nanocomposites—Advanced Materials for IT SOFC Cathodes
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Конференция |
International Symposium on Innovative Materials for Processes in Energy Systems - For Fuel Cells, Heat Pumps and Sorption Systems
29 нояб. - 1 дек. 2010
,
Singapore
|
| Журнал |
Heat Transfer Engineering
ISSN: 0145-7632
, E-ISSN: 1521-0537
|
| Вых. Данные |
Год: 2013,
Том: 34,
Номер: 11-12,
Страницы: 904-916
Страниц
: 13
DOI:
10.1080/01457632.2012.752685
|
| Авторы |
Pavlova Svetlana
1
,
Kharlamova Tamara
2
,
Sadykov Vladislav
1
,
Krieger Tamara
1
,
Muzykantov Vitaly
1
,
Bespalko Yulia
1
,
Ishchenko Arcady
1
,
Rogov Vladimir
1
,
Belyaev Vladimir
1
,
Okhlupin Yury
3
,
Uvarov Nikolai
3
,
Smirnova Alevtina
4
|
| Организации |
| 1 |
Boreskov Institute of Catalysis SB RAS , Novosibirsk , Russia
|
| 2 |
Tomsk State University , Tomsk , Russia
|
| 3 |
Institute of Solid State Chemistry and Mechanochemistry of SB RAS , Novosibirsk , Russi
|
| 4 |
Environmental Earth Science Department , Eastern Connecticut State University , Willimantic , Connecticut , USA
|
|
Информация о финансировании (4)
|
1
|
Президиум СО РАН
|
57
|
|
2
|
Министерство образования и науки Российской Федерации
|
14.740.12.1357
|
|
3
|
Президиум РАН
|
57
|
|
4
|
Президиум Национальной академии наук Беларуси
|
T09C-003
|
Mixed ionic−electronic conducting nanocomposites comprising complex oxides - perovskite (lanthanum-strontium nickelate-ferrite [LSFN]) and gadolinium-doped ceria (GDC) have been prepared via ultrasonic dispersion of nanocrystalline powders of LSFNx and GDC in organic solvent with addition of surfactant, followed by drying and sintering up to 1300°C. Their structural and surface properties have been studied by x-ray diffraction, ultraviolet–visible (UV-vis) electron spectroscopy, transmission electron microscopy with elemental analysis, and x-ray photoelectron spectroscopy. Results of impedance spectroscopy, oxygen isotope exchange, O2 temperature-programmed desorption, weight, and conductivity relaxation experiments have revealed a strong positive effect of perovskite−fluorite nanodomain interfaces in composite on the oxygen mobility and reactivity. Testing in wet H2/air feeds for a button-size cell with functionally graded LSFN0.4–GDC cathode layer supported on a thin YSZ layer covering Ni/YSZ cermet has demonstrated high and stable performance, promising for the practical application in the intermediate temperature range.