fig7

Figure 7. (A) Schematic of the screen-printing. Reproduced with permission from Ref.^[103]. Copyright 2012, Elsevier. (B) SEM image of the cross-section of SOEC. Reproduced with permission from Ref.^[106]. Copyright 2020, Elsevier. (C) Effect of ionic radius of different dopant elements on the ionic conductivity of CeO₂-based electrolyte. Reproduced with permission from Ref.^[108]. Copyright 2007, Elsevier. (D) Schematic of the constituent atoms of SOEC. Reproduced with permission from Ref.^[118]. Copyright 2020, American Chemical Society. (E) SEM image of the dense BZCYYb/LCO layer. Reproduced with permission from Ref.^[119]. Copyright 2019, American Chemical Society. (F) Schematic of the working principle of the Hybrid-SOEC. Reproduced with permission from Ref.^[120]. Copyright 2018, Elsevier.