Electrical characterization of NiO-CGOcomposites- SOFC anode precursor- preparedvia combustion synthesis route
2014
A precursor to SOFC anode was made via solution combustion technique that is NiO-GDC (Gadolinia doped Ceria) composites by mixing nitrates of cerium, gadolinium and nickel in stoichiometric ratio of composition to form the final precursor product as Ce0.90Gd0.10O1.95 - 0.40 NiO. The fuel for the combustion synthesis that is glycine’s concentration was varied between 0.5 mole% to 1.4 mole%. The temperature of the resultant sintered pellets was varied between 30 to 800oC and electrical properties of the NiO-CGO composite was studied by means of admittance plots between conductivity & susceptance. The results showed that the composite precursor varied in conductivity and activation energy depending on the concentration of the fuel.
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