Novel Oxides for Cycled Hydrogen Production from Methane and Water Using a Temperature Swing

A group of iron‐doped novel oxides of cerium, terbium, and praseodymium are reported to produce hydrogen at relatively low temperatures through a cycling two‐step reaction process without catalyst. Iron doping in the oxides not only stimulates surface activity, but also lowers the reduction temperat...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2003-03, Vol.15 (6), p.521-526
Main Authors: Kang, Z., Wang, Z.L.
Format: Article
Language:English
Subjects:
Fuel cells
Hydrogen production
Transition metal oxides
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Summary:A group of iron‐doped novel oxides of cerium, terbium, and praseodymium are reported to produce hydrogen at relatively low temperatures through a cycling two‐step reaction process without catalyst. Iron doping in the oxides not only stimulates surface activity, but also lowers the reduction temperature of water vapor (to ∼ 375 °C) while preserving efficient hydrogen production. The two‐step reactions eliminate the problem of catalyst deactivation due to coke. Thus the cycle can be carried out continuously without replacing oxide.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200390121