Structural analyses were conducted to evaluate the fidelity of catalyst phase stability, morphology and elemental distribution due to sintering temperature. The perovskite catalysts synthesized at 900°C showed single phases and retained their original perovskite phases after sintering on a YSZ substrate at 1200°C (Figure ). This confirmed the perovskites phases as the active electrocatalysts for ethane conversion to ethylene. Prior literature has shown rare-earth metal oxides possess activity for ODH , however the perovskite phases offer the additional advantage of mixed ionic and electronic conductivity for this electrogenerative configuration.