Mixed ionic-electronic conducting (MIEC) ceramic-based membranes for oxygen separation

Investigation of the permeation behavior and stability of a Ba0.5Sr0.5Co0.8Fe0.2O3−δ oxygen membrane

Introduction, H.J.M. Bouwmeester and P.J. Gellings Principles of Electrochemistry, H. Gerischer Solid State Background, I. Abrahams and P.G. Bruce Interface Electrical Phenomena in Ionic Solids, J. Nowotny Defect Chemistry in Solid State Electrochemistry, J. Schoonman Survey of Types of Solid Electrolytes, T. Kudo Electrochemistry of Mixed Ionic-Electronic Conductors, I. Riess Electrodics, I. Riess and J. Schoonman Principles of Main Experimental Methods, W. Weppner Electrochemical Sensors, P. Fabry and E. Siebert Solid State Batteries, C. Julien Solid Oxide Fuel Cells, A. Hammou and J. Guindet Electrocatalysis and Electrochemical Reactors, C.G. Vayenas and S. Bebelis Dense Ceramic Membranes for Oxygen Separation, H.J.M. Bouwmeester and A.J. Burggraaf Corrosion Studies, J.H.W. de Wit and T. Fransen Electrochromism and Electrochromic Devices, G.C. Granqvist Index

The CRC handbook of solid state electrochemistry

Dense ceramic membranes for methane conversion

Progress in understanding and development of Ba0.5Sr0.5Co0.8Fe0.2O3−δ-based cathodes for intermediate-temperature solid-oxide fuel cells: A review

In the course of generating synthesis gas (H2, CO) from methane, we have observed two types of fractures occurring on the Sr(Co, Fe)Ox-type oxygen membrane reactors The first type occurred shortly after the reaction started and the second type often occurred days after the reaction To determine the causes of these fractures, we have examined the starting material and fractured membranes using a combination of X-ray diffraction and thermogravimetric analyses We found that the first type of fracture was the consequence of an oxygen gradient in the membrane, pointing from the reaction side to the air side This causes a lattice mismatch inside the membrane, leading to fracture The second type of fracture, however, was the result of a chemical decomposition We found that the Sr(Co, Fe)Ox-type membrane had been reduced to SrCO3, and elemental Co and Fe by the synthesis gas generated in the reaction The decomposition causes enormous expansion leading to a large crack along the axis of tube

J. Faber

Papers

Failure mechanisms of ceramic membrane reactors in partial oxidation of methane to synthesis gas