Development and characterization of highly stable electrode inks for low-temperature ceramic fuel cells

Inkjet printing is a potential contactless and mask-free additive manufacturing approach for solid oxide fuel cells. Here, highly stable cathode ink using La0.6Sr0.4Co0.2Fe0.8O3 was developed characterized with particle size analysis, viscosity, surface tension, density, thermal analysis. Both fresh 6-months stored inks showed excellent jetability behavior Z number of 2.77 3.45, respectively. The successfully inkjet-printed on (LiNaK)2CO3-Gd:CeO2 porous electrolyte substrate to fabricate symmetric cell. electrochemical impedance spectroscopy measurements that at 550 °C the inkjet lowered ohmic resistance one-third (from 1.05 ? cm2 0.37 cm2) mass diffusion by 4.25 times 6.09 1.43 as compared drop-casted cell creating hierarchical structure increasing reaction sites. Successful functional electrode material opens up new avenue fabrication low-temperature ceramic