H² Research and Process

From: Spudboy100@aol.com
Date: Tue Jun 10 2003 - 06:39:53 MDT

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    http://www.sciencedaily.com/releases/2003/06/030610075242.htm

    <<...Powering Fuel Cells: Oxide Materials May Facilitate Small-scale Hydrogen
    Production
    A unique group of oxide materials that readily gives up and accepts oxygen
    atoms with changes in temperature could be the basis for a small-scale hydrogen
    production system able to power fuel cells in homes -- and potentially in
    automotive applications. Scientists have long known that oxides of the rare earth
    elements cerium (Ce), terbium (Tb), and praseodymium (Pr) can produce hydrogen
    from water vapor and methane in continuous "inhale and exhale" cycles. By
    doping iron atoms into the oxides, researchers at the Georgia Institute of
    Technology have lowered the temperatures at which these "oxygen pump" materials
    produce hydrogen, potentially allowing the process to be powered by solar energy.

    This promising early-stage research was reported in the journal Advanced
    Materials 15 (2003) pp 521-526.

    "This is a new approach for producing hydrogen that has several advantages
    compared to conventional production technology," said Zhong L. Wang, a professor
    in Georgia Tech's School of Materials Science and Engineering and director of
    the Center for Nanoscience and Nanotechnology. "For some applications,
    particularly those in the home, this could provide an alternative way to supply
    hydrogen for small-scale fuel cells."

    Traditional reforming processes use metallic catalysts and temperatures in
    excess of 800 degrees Celsius to produce hydrogen from hydrocarbons such as
    methane. While efficient in industrial-scale production, the traditional reforming
    process may not be ideal for the small-scale hydrogen production needed to
    power fuel cells in homes or vehicles...>>

        
        
        
        



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