fig10

Figure 10. (A) A typical planar SOEC stack-unit scheme. Reproduced with permission from Ref.^[150]. Copyright 2022, MDPI. (B) Schematic of tubular SOEC. Reproduced with permission from Ref.^[130]. Copyright 2022, Elsevier. (C) Schematic of microtubular SOEC structure. Reproduced with permission from Ref.^[151]. Copyright 2022, Elsevier. (D) Cross-section of flat-tubular anode-supported cell and channel position. Reproduced with permission from Ref.^[152]. Copyright 2017, Elsevier.