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

✍ Scribed by Z. Kang; Z.L. Wang

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 205 KB
• Volume: 15
• Category: Article
• ISSN: 0935-9648
• DOI: 10.1002/adma.200390121

✦ Synopsis

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.