Perovskites as oxygen carriers in chemical looping reforming process – Preparation of dense perovskite membranes and ionic conductivity measurement

This paper reports the preparation and the physicochemical and electrochemical characterization of perovskite membranes with the general formula La1-xSrxFeO3 (x= 0, 0.3, 0.5, 0.7, 1) for application as oxygen-carrier materials in a dense membrane reactor for hydrogen production by the Chemical Loopi...

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Bibliographic Details
Main Authors: Matsouka, Charitini, Zaspalis, Vassilis, Nalbandian, Lori
Format: Conference Proceeding
Language:English
Subjects:
chemical looping reforming
impedance spectroscopy
LSF perovskites
total conductivity
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Summary:This paper reports the preparation and the physicochemical and electrochemical characterization of perovskite membranes with the general formula La1-xSrxFeO3 (x= 0, 0.3, 0.5, 0.7, 1) for application as oxygen-carrier materials in a dense membrane reactor for hydrogen production by the Chemical Looping Reforming method. Dense perovskite membranes with relative densities between 92% and 98% are prepared by uniaxial pressing and sintering at optimum conditions. The total conductivity of the prepared dense membranes is determined with Electrochemical Impedance Spectroscopy as a function of temperature and Sr-content
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2018.09.074