ABO3 type perovskite composite oxides having high mixed conductivity
A composite oxide and conductivity technology, applied in the field of materials, can solve the problems of high preparation cost and complicated separation process of a single rare earth composite oxide, and achieve the effect of reducing preparation cost and high conductivity
Inactive Publication Date: 2009-04-15
INNER MONGOLIA UNIV OF SCI & TECH
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Abstract
The invention relates to an ABO3 type perovskite composite oxide system with high mixed conductivity, in particular to double rare earth doping of A bit based on Sm0.5Sr0.5CoO3-delta (SSC), which belongs to the field of materials. The chemical equation is Sm0.5-xGdxCoO3-delta (0<x<0.5). The perovskite composite oxide has higher mixed conductivity in the scope of 500 to 800 DEG C; at 500 DEG C, the chemical equation is Sm0.3Gd0.2Sr0.5CoO3-delta, and the conductivity can reach 1820.8S.cm<-1>, which is basically the same as that of the A bit without doping Sm0.5Sr0.5CoO3-delta. The perovskite composite oxide has certain application prospect in the fields of middle-low-temperature solid oxide fuel cells, oxygen separation membranes, sensors, and the like.
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Chemical equationRare-earth element +8
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