Abstract
SrMnO3 is a potential solid oxide fuel cell (SOFC) cathode material. However, the formation of different crystalline phases and poor sinterability restrict its application as a cathode in SOFC. Thus, the present study is focused on the synthesis of monophasic SrMnO3 using different sintering temperatures with variable sintering durations. The X-ray diffraction confirms the gradual transformation of hexagonal to orthorhombic SrMnO3. Minor amounts of Hausmannite Mn3O4 and Ruddlesden-popper phase Sr4Mn3O10 are also observed. The volume fraction of SrMnO3 increases with the increasing sintering temperature. At the sintering temperature of 1300°C for 4 hours, the volume fraction of the secondary phases is the minimum.
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