Effect of Complex Oxide Promoters and Pd on Activity and Stability of Ni/YSZ (ScSZ) Cermets as Anode Materials for IT SOFC
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Конференция |
4th Asia-Pacific Congress on Catalysis
06-08 дек. 2006
,
Singapore
|
| Журнал |
Catalysis Today
ISSN: 0920-5861
, E-ISSN: 1873-4308
|
| Вых. Данные |
Год: 2008,
Том: 131,
Номер: 1-4,
Страницы: 226-237
Страниц
: 12
DOI:
10.1016/j.cattod.2007.10.064
|
| Ключевые слова |
EDX, H2 and CH4 TPR, Methane steam reforming, Microstructure, Promoters, SOFC composite anodes, TEM |
| Авторы |
Sadykov Vladislav A.
1
,
Mezentseva Natalia V.
1
,
Bunina Rimma V.
1
,
Alikina Galina M.
1
,
Lukashevich Anton I.
1
,
Kharlamova Tamara S.
1
,
Rogov Vladimir A.
1
,
Zaikovskii Vladimir I.
1
,
Ishchenko Arcady V.
1
,
Krieger Tamara A.
1
,
Bobrenok Oleg F.
2
,
Smirnova Alevtina
3
,
Irvine John
4
,
Vasylyev Oleksandr D.
5
|
| Организации |
| 1 |
Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russian Federation
|
| 2 |
Institute of Thermophysics SB RAS, Novosibirsk, Russian Federation
|
| 3 |
Global Fuel Cells Center, University of Connecticut, Storrs, CT, USA
|
| 4 |
School of Chemistry, University of St. Andrews, Fife, United Kingdom
|
| 5 |
Institute for Problems of Materials Science, Kiev, Ukraine
|
|
Информация о финансировании (2)
|
1
|
Президиум СО РАН
|
95
|
|
2
|
North Atlantic Treaty Organization
|
SfP-980878
|
Effect of fluorite-like or perovskite-like complex oxide promoters, Pd and Cu on the performance of Ni/8YSZ and Ni/ScCeSZ anode materials in CH4 steam reforming (SR) or selective oxidation (SO) by O2 into syngas was studied. The spatial distribution of dopants in composites before and after contact with the reaction feed, features of components mutual interaction and forms of deposited coke were controlled by TEM combined
with EDX analysis. The lattice oxygen mobility and reactivity were estimated by CH4 and H2 temperature-programmed reduction (TPR), and the amount of deposited carbon after operation in the feed with stoichiometric H2O/CH4 ratio was estimated by the temperature-programmed oxidation. Promoters decrease the amount of deposited coke, while doping by Pd or Cu ensures also a good and stable performance at moderate
(550 8C) temperatures required for the intermediate-temperature solid oxide fuel cells (IT SOFC) operation.