Perovskite Materials and Related Compounds Oxygen Transport Parameters

Perovskite Materials and Related Compounds Oxygen Transport Parameters 

As pointed out by Kilner et al. [45], even without taking into account the structural differences, oxygen transport in these materials relies on many different parameters. If we consider, for example, the general formula ABO3, it will depend on the nature of the A and B cations, the nature of the substitutional cations on the A and/or B sites and their respective degree of substitution, the possible cation vacancies on the A site, and naturally temperature and oxygen partial pressure conditions. 

Lai eSr 03 perovskites was already pointed out by Misuzaki et al. [55] and Kilner et al. [56] and this emphasizes the fact that oxygen transport in these materials is predominantly controlled by the oxygen vacancies concentration. 

Despite their structural simplicity, perovskite materials remain references in the field of mixed ionic conductivity due to their flexibility. The properties are 

Kordesch, K. and Simader, G. (1996) Fuel Cells and Their Applications, John Wiley Sons, Ltd, Chichester. 

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