Based on ab inito method, the binding energies of SrBO_3 perovskite type electrode materials in solid oxide fuel cell in which B site chosen from 3~(rd) to 6~(th) periods elements were calculated. Effect of elements used in B site on the formation of cubic or hexagonal crystal structure was discussed. Structure stability diagram that contained three phases(unstable, cubic stable and hexagonal stable phases) was achieved. The distribution rule of composition points in this diagram was confirmed by inducing r...
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