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Synthesis and Characterization of Hydrogen Separation Membranes: Author: Lakshminarayanan, Karthikeyan; Date: 2005-05-15; Program: Mechanical Engineering; Abstract: Hydrogen can be obtained from purification of water gas by ceramic hydrogen separation membranes. These membranes need to be further improved to obtain reasonable production of hydrogen from water gas. Fuel cell materials and state of the art ceramic membranes were characterized by impedance spectroscopy and dielectric measurements. To block the ionic and electronic conductivity, blocking layers of MgO were used. The coating thickness was analyzed by RBS and SEM techniques. Dielectric measurements with blocking layers and impedance measurements without any blocking layers were made over a wide...; Download File | View full details