I want to work on a single perovskite oxide like Ba1-xSrxFe1-ySbyO3-d with a single modification on B-site. I’m willing to replace the Sb with another similar material. So my composition might be like Ba1-xSrxFe1-yXyO3-d
I need suggestions about X, like what materials can be used to replace Sb.
To identify the potential dopant, you need to consider a number of factors. Like size, charge valence, mixed valences, etc. In addition, your research needs to be clear. Such as, where will be the material applicable, oxide ion base SOFC or H+ conducting SOFC. You know the oxygen permeability of cathode material significantly controls the performance. So, I think lower valance cations (Mg, Zn, Cu, etc) could be an interesting choice for oxide ion-based material. In the case of H+ conducting SOFC, additional issues are there.
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