Novel perovskite-based catalysts for autothermal JP-8 fuel reforming
Autothermal reforming is an attractive method for on-site production of hydrogen for use in proton-exchange membrane (PEM) fuel cells. The use of liquid hydrocarbons as feedstock, however, remains a challenge as these fuels cause severe coking of the currently available catalysts. In this work, ceri...
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| Published in | Fuel cells bulletin Vol. 2006; no. 7; pp. 12 - 17 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.07.2006
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| Online Access | Get full text |
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| Summary: | Autothermal reforming is an attractive method for on-site production of hydrogen for use in proton-exchange membrane (PEM) fuel cells. The use of liquid hydrocarbons as feedstock, however, remains a challenge as these fuels cause severe coking of the currently available catalysts. In this work, cerium- and nickel-substituted LaFeO
3 perovskites were investigated as potential low-cost, coking-resistant catalysts for autothermal reforming of a JP-8 fuel surrogate. The high-surface-area complex oxides were prepared using aqueous (solution) combustion synthesis at fuel-rich conditions and characterized by BET and XRD techniques. The catalysts exhibited excellent stability during autothermal reforming at 775°C and 1 atm, with near-equilibrium hydrogen yield even at high GHSV values (130 000 h
−1). The addition of cerium significantly improved coking resistance, attributed to improved oxygen ion conductivity, resulting in carbon oxidation on the catalyst surface. |
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| ISSN: | 1464-2859 1873-717X |
| DOI: | 10.1016/S1464-2859(06)71134-8 |