Perovskite Membranes for High Temperature Oxygen Separation

Perovskite Membranes for High Temperature Oxygen Separation 

Leibniz University Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstr. 3A, D-30167 Haimover, Germany 

The molecular oxygen flux through a perovskite OTM is related to the chemical potential gradient Vp(02)  

Membrane Engineering for the Treatment of Gases, Volume 2 Gas-separation Problems Combined with Membrane Reactors Edited by Enrico Drioli and Giuseppe Barbieri Royal Society of Chemistry 2011 

However, for mixed oxygen ion-electron conducting materials the surface processes can become rate limiting for oxygen transport through the membrane rather than bulk diffusion. Under surface reaction we understand the 

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Perovskite Membranes for High Temperature Oxygen Separation 193... 

Kharton, V.V., Yaremchenko, A.A., Kovalevsky, A.V. et al. (1999) Perovskite-type oxides for high-temperature oxygen separation membranes. Journal of Membrane Science, 163 (2), 307-317. 

Middelkoop, V., Chen, H., Michielsen, B., et al. (2014) Development and characterisation of dense lanthanum-based perovskite oxygen-separation capillary membranes for high-temperature applications. Journal of Membrane Science, 468, 250-258. 

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