Contact
    Start Publications Development and characterization of highly stable electrode ...
    ←  Publication Finder
    Attension

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

    Year: 2022

    Journal: J. Power Sources, Volume 552, DEC 30

    Authors: Golkhatmi, Sanaz Zarabi; Asghar, Muhammad Imran; Lund, Peter D.

    Organizations: Academy of Finland; Hubei Overseas Talent 100 program; [13329016]; [13322738]

    Keywords: Inkjet printing; Ceramics; Electrode; Solid oxide fuel cell; Stability

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