Low temperature co-sintering of Sr2Fe1.5Mo0.5O6−δ-Gd0.1Ce0.9O2−δ anode-supported solid oxide fuel cells with Li2O-Gd0.1Ce0.9O2−δ electrolyte

Sr2Fe1.5Mo0.5O6−δ−Gd0.1Ce0.9O1.95(SFM-GDC) ceramic anode-supported solid oxide fuel cell with GDC crack-free electrolyte film (∼80 μm) has been fabricated by co-pressing and co-sintering at temperature as low as 1150 °C for 5 h by introducing 2.5 mol% Li2O as sintering-aid. The peak power density of such cells with Ba0.9Co0.7Fe0.2Nb0.1O3−δ (BCFN) cathode can reach 200 mW cm−2 at 700 °C when using H2 as fuel and ambient air as oxidant. In addition, the anode shows an excellent sulfur tolerance when using H2 with 50 ppm H2S as fuel.