Abstract
Deposition of platinum particles at lanthanum manganite cathode (LSM)/scandia-stabilized zirconia (ScSZ)/air three-phase boundaries (TPBs) was investigated. Button-type half-cells consisting of a strontium-doped LSM and a ScSZ electrolyte were operated at using platinum (Pt) or gold (Au) components as current collectors and lead wires. When Pt components were used, Pt particles were observed only in the vicinity of three-phase boundaries of the cathode after a power generation test. No particle was observed around TPBs of the cathode when Au components were used.
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