Fig. 3From: Carbonate dual-phase improves the performance of single-layer fuel cell made from mixed ionic and semiconductor compositeCross-section of the LNZ-GDC-NLKC pellet after the electrochemical measurements (a). A surface image showing the pxide and carbonate phases in the cell (b). TEM images of the LNZ-GDC-NLKC nanopowder with two different magnifications (c, d)Back to article page