Perovskites as dense membranes

Nearly all the tested membrane materials have been tested either as diskshaped or as hollow fiber dense membranes. 

Lede et al. [48], in 1982, used a Ca-stabilized zirconia membrane as a means to separate oxygen during thermal dissociation of water at extremely high temperatures (1500-1800 °C). In order to achieve higher oxygen flux through their 

Reference Year Powder material/ cocatalyst Reactor type Reduction temperature/gas flow Oxidation temperature/ gas flow No. of cycles Maximum oxygen release H3/CO production Characterization 

Reference Year Membrane material/catalyst Reduction by Oxidation by Ha production Membrane type/ thickness Temperature Characterization 

5% Na2W04/Si02 catalyst. At 950 °C, the C2 yield increased from 3.1 to 6.5%, while in compartment 1 about 9% of the H2O injected was converted to hydrogen with a production rate of about 1 m (STP) H2/(m h). 

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