Cover Image, Volume 101, Issue 12

Cover Photograph: Top‐left: SEM‐EDS analysis in line‐scan mode across the cross section at BZCY‐containing anode|GDC electrolyte interface. Top‐middle: Schematic diagram of the metal ion diffusion mechanism at BZCY‐containing anode|GDC electrolyte interface. Top‐right: OCV values of some typical DCO‐based SOFCs with or without electron‐blocking layers. Bottom‐left: TEM image of the grain from NiO‐BZCY|GDC foam|NiO‐BZCY. Bottom‐middle: EDS results in line‐scan mode of the grain from NiO‐BZCY|GDC foam|NiO‐BZCY. Bottom‐right: HRTEM image of the grain obtained from NiO‐BZCY|GDC foam|NiO‐BZCY.