Synthesis and Characterization of Double Perovskite Sr2Mgl-xMnxMo06 as Anode Materials in Fuel Cell


The anode materials in the solid oxide fuel cell (SOFC) require properties such as high electric conductivity,
high catalytic effect for hydrogen decomposition from hydrocarbon and good resistant to sulfur. For these purposes,
anode materials based on double perovskite structure, AzBB'06, were synthesized and studied. In this work, double
perovskite compounds, SrzMgl_xMnxMo06_0 (SMMMO) with 0 ~ x ~ I, were synthesized by means of solid state
reaction technique at 1350 °C. Crystal structures were determined using X-rays diffractometer and analyzed with the
RIETICA program, by employing Le Bail method. The oxides materials showed to adopt monoclinic structure with
space group of P211n. For SMMO with higher x, the lattice parameters and the unit-cell volume become smaller. SEM
(Scanning Microscope Electron) image, which gave the morphology of SMMMO showed that grains size was increased
with the increasing ofx. Meanwhile, the DC measurement for electrical conductivity as function of temperature revealed
that the conductivity increases with the increasing ofx.
Keywords: SMMO,double perovskite, SOFC, X-ray diffractionN. R. Sari, Ismunandar and B. Prijamboedi
Inorganic and Physical Chemistry Research Division,Faculty of Mathematics and Natural Sciences,
Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, INDONESIA