In this work, a microtubular cell consisting of a thin (GDC) electrolyte (thickness: below ) on a support NiO/GDC anode (1.8 mm outer diameter, wall thickness) with a functional cathode has been developed for intermediate/low temperature operation. The functional cathode was prepared by in situ infiltrating the electrochemically catalytic nano-Ag particles into the as-established thick cathode. The as-proposed Ag-impregnation route ensures a very homogeneous particle dispersion and a good adhesion of Ag to the ceramic matrices. The cells were successfully operated to produce the maximum power densities of (, 0.32 V), (, 0.37 V), and (, 0.44 V) at , , and , respectively.
Issue Section:
Research Papers
Keywords:
solid oxide fuel cells,
gadolinium doped ceria,
La0.6 Sr0.4 Co0.2 Fe0.8 O3−δ,
Ag-impregnation,
cell performance,
adhesion,
catalysis,
ceramics,
cerium compounds,
cobalt compounds,
electrochemical electrodes,
electrochemistry,
electrolytes,
lanthanum compounds,
nanocomposites,
nanoparticles,
silver,
solid oxide fuel cells,
strontium compounds
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