It indeed has been found to be true; it is the unique structural features of lower-order phases such as Lower order n = 1 Ruddlesden-Popper phase materials have a robust capability of storing a considerable amount of interstitial oxygen in their structure which bestowed the materials with significant oxide ion conductivity. This renders the materials MIEC at intermediate temperatures which is the main motivation of intense research focus on these materials . Thus n = 1 phases such as LNO, PNO and NNO have been studied extensively. With the lower-order phases such as LNO and PNO, the main issue though is the phase stability under operating conditions, which unfortunately restricts their use as IT-SOFC cathodes . Even doped lower-order phases such as cobalt doped LNO, La2Ni0.9Co0.1O4+δ, studied by Amow and co-workers observed extensive decomposition .