Abstract
The bimetallic nickel-iron anode-supported SOFCs were fabricated, with their microstructure analysed, and the performance evaluated at the intermediate temperatures. The produced anode supports were made with the base composition of NiO:Fe2O3 (7:3)mol% and addition of sintering aids. The discs-shaped substrates were die-pressed, with the active layers deposited using Direct Ceramic Inkjet Printing (DCIJP) of suspension inks. The 10µm thicknesses were achieved for the printed electrolyte layer. The DCIJP has also enabled infiltrating the scaffolds of porous supports, thus extending the active area of electrode. The electrolyte material was comprised of 10Sc1CeSZ, whereas cathode was LSCF/CGO composite. Samples with fully co-sintered active layers were produced, alongside the optimised amount of additives, and the adjusted coefficients of thermal expansions. The cell was tested in 4%H2 in Ar gas and dry air, and has displayed open circuit potential of ~0.8V at 750°C.
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