Introduction of Multiple CeO₂ Interlayers to Avoid Ni Agglomeration in Nanoscale Ni-YSZ Solid Oxide Cell Hydrogen Electrodes.

ABSTRACT: Nanostructuring of solid oxide cell (SOC) electrodes is necessary for enhancing the electrochemically active triple phase boundary length and thus lowering the operating temperature of these devices. However, nanoscale morphology in nickel-yttria-stabilized zirconia (Ni-YSZ) electrodes renders the structure extremely prone to Ni agglomeration and hence performance degradation upon long-term operation. To overcome this challenge, application of multiple CeO₂ nanolayers into the nanoscale Ni-YSZ electrodes, all produced from direct deposition of liquid precursors, is proposed. This way, constraining the movement of Ni, while maintaining electronic and ionic transport within the electrodes, is aimed. Microscopy analyses reveal relatively stable microstructures in the case of electr

SUBMITTER: Unver MU 

PROVIDER: S-EPMC12314861 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature