A nanocatalyst network has been successfully prepared over the internal surface of Ni-based cathode support with a microchanneled structure via an impregnation process. Through numerous microchannels within the cathode support, a catalyst precursor solution was effectively delivered to the interface between cathode and electrolyte, resulting in the formation of the nanocatalyst network in the cathode reaction zone and therefore decreased degradation rate during CO₂ electrolysis. After four coatings, the robust nanocatalyst network was formed to produce the least degradation, and further catalyst coatings caused concentration polarization.

中文翻译：

---

用于在微通道固体氧化物电解槽上电化学还原CO _2的纳米催化剂网络

已经通过浸渍工艺成功地在具有微通道结构的Ni基阴极载体的内表面上成功地制备了纳米催化剂网络。通过阴极载体内的许多微通道，催化剂前体溶液有效地输送至阴极和电解质之间的界面，导致在阴极反应区内形成纳米催化剂网络，因此降低了CO ₂电解过程中的降解速率。经过四次涂层后，形成了坚固的纳米催化剂网络以产生最小的降解，并且进一步的催化剂涂层引起了浓度极化。