The XRD results of the perovskite powders immersed at 200 °C for 72 h in 10 M KOH in an autoclave can be seen in Figure and show a clear trend: with increasing Fe amount, the stability of the material decreases.
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Stability and Exsolution of Sr<sub>0.98</sub>Ti<sub>0.7</sub>Fe<sub>0.25</sub>Ni<sub>0.05</sub>O<sub>3</sub> for the Oxygen Evolution Reaction in an Alkaline Environment.
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