Victor Duffort, Martin Pajot, Soukaina, Mountadir, Edouard Capoen, Anne-Sophie Mamede, Rose-Noëlle Vannier Impact of the strontium content on the performance of Bi1.5Er0.5O3/La1‑xSrxMnO3 composite electrodes for low temperature SOFCs E-MRS spring meeting – G.Mo.Poster.9 May 31st 2021 Context of the study Waschman full cell + optimisation Std HT material is La0.8Sr0.2MnO3 ➔ Typical deactivation is SrO segregation ➔ Methodology c (Å) TEC×106 (K-1) σ@500 °C (S cm-1) Avg. Mn Ox. Sate 5.53551(5) 13.3694(2) 14.9 117 3.7 R3c 5.5092(5) 13.371(1) 12.8 131 3.7 R3c 5.4912(4) 13.361(1) 13.3 235 3.5 Composition δ Spc. Grp. a (Å) La0.85Sr0.15MnO3+δ 0.09 R3c La0.7Sr0.3MnO3+δ 0.02 La0.6Sr0.4MnO3+δ 0.03 b (Å) La0.5Sr0.5MnO3+δ < 0.01 Pnma 5.4650(3) 7.6917(4) 5.4825(3) 14.1 215 3.5 La0.4Sr0.6MnO3+δ <0.01 Pnma 5.4670(2) 7.6732(1) 5.471(2) 13.6 474 3.4 La0.2Sr0.8MnO3+δ <0.01 Pnma 5.4561(1) 7.6369(1) 5.4327(1) 14.5 86 3.2 Discussion La1-xSrxMnO3+δ (La1-xSrxMn)1-yO3 Surface Subsurface Bulk Acknowledgments