Reactive Working Material for Use in Hydrogen Production by Decompostion of Water
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United States of America Patent
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Issued Date -
Apr 17, 2008
app pub date -
Sep 7, 2004
filing date -
Sep 7, 2004
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Abstract
Disclosed is a reactive working material for use in a process of producing hydrogen by splitting water based on a two-step thermochemical water-splitting cycle through the utilization of solar heat, industrial waste heat or the like, which comprises a ferrite fine powder and a cubic zirconia supporting the ferrite fine powder. This reactive working material makes it possible to prevent scaling off of the ferrite fine powder from the zirconia fine powder due to volumetric changes of the ferrite fine powder during repeated use, and suppress growth of FeO grains due to repetition of melting and solidification when used as a reactive working material for a cyclic reaction under a high temperature of 1400.degree. C. or more.
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