Infiltration is an effective way to improve porous electrode performance of solid oxide cells while the preparation procedure and catalyst stability still remain challenging. The microchannel structure of cathodes enables the implementation of catalysts into conventional Ni-based cathode supports of solid oxide electrolysis cells via the infiltration process to accelerate CO₂ electrolysis. Infiltrating a CeO₂ colloid precursor to prepare catalytic washcoat has been demonstrated as a more efficient catalyst preparation and resulted in a more stable CO₂ electrolysis performance, compared with infiltrating conventional nitrate precursors. The catalytic CeO₂ washcoat possesses a uniform particle size distribution and strong adhesion to the cathode scaffold surface. The optimization of the infiltration process results in a remarkable stability of CO₂ electrolysis performance during cell operation for 334 h owing to the stable catalyst microstructure.

渗透是提高固体氧化物电池的多孔电极性能的有效方法，而制备过程和催化剂稳定性仍然具有挑战性。阴极的微通道结构能够通过渗透过程将催化剂实施到固体氧化物电解槽的常规Ni基阴极载体中，从而加速CO ₂电解。与渗透常规硝酸盐前体相比，渗透CeO ₂胶体前体以制备催化修补基面涂层已被证明是一种更有效的催化剂制备方法，并导致更稳定的CO ₂电解性能。催化CeO ₂修补基面涂层具有均匀的粒度分布和对阴极支架表面的强粘附力。由于稳定的催化剂微观结构，渗透过程的优化导致在电解池操作334 h期间CO ₂电解性能具有显着的稳定性。