Catalytic properties of new anode materials for solid oxide fuel cells operated under methane at intermediary temperature
The recent trend in solid oxide fuel cell concerns the use of natural gas as fuel. Steam reforming of methane is a well-established process for producing hydrogen directly at the anode side. In order to develop new anode materials, the catalytic activities of several oxides for the steam reforming o...
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Published in | Journal of power sources Vol. 101; no. 2; pp. 259 - 266 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Lausanne
Elsevier B.V
15.10.2001
Elsevier Sequoia |
Subjects | |
Online Access | Get full text |
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Summary: | The recent trend in solid oxide fuel cell concerns the use of natural gas as fuel. Steam reforming of methane is a well-established process for producing hydrogen directly at the anode side. In order to develop new anode materials, the catalytic activities of several oxides for the steam reforming of methane were characterized by gas chromatography. We studied the catalytic activity as a function of steam/carbon ratios
r. The methane and the steam content were varied between 5 and 30% and between 1.5 and 3.5%, respectively, corresponding to
r-values between 0.07 and 0.7. Catalyst (ruthenium and vanadium)-doped lanthanum chromites substituted with strontium, gadolinium-doped ceria (Ce
0.9Gd
0.1O
2) referred as to CeGdO
2, praseodymium oxide, molybdenum oxide and copper oxide were tested. The working temperature was fixed at 850°C, except for 5% ruthenium-doped La
1−
x
Sr
x
CrO
3 where the temperature was varied between 700 and 850°C. Two types of behavior were observed as a function of the activity of the catalyst. The higher steam reforming efficiency was observed with 5% of ruthenium above 750°C. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0378-7753 1873-2755 |
DOI: | 10.1016/S0378-7753(01)00763-7 |