Preparation of LaCoO&lt;sub&gt;3&lt;/sub&gt; Thin Film Electrode by Vacuum Evaporation for Solid Oxide Fuel Cells

Michibata, Hideo; Namikawa, T.; Yamazaki, Yohtaro

doi:10.5796/kogyobutsurikagaku.57.255

Cited by 7 publications

(1 citation statement)

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“…1,2 We have developed a new preparation method for these films using electrochemical oxidation, where the perovskite precursors can be prepared by the electrochemical deposition of the oxyhydroxide or oxide in solutions containing both the transition metal and lanthanide ions. They are especially suitable as the air electrode material for high temperature solid oxide fuel cells because of their chemical stability at high temperature and their superior electrocatalytic properties.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical preparation of cobalt oxide using an autoclave electrolytic cell

1998

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Polycrystalline films of cobalt oxides (Co 3 O 4 and CoOOH) with and without Sm were fabricated on platinum substrates by electrochemical oxidation in an autoclave. The cobalt oxides were directly crystallized at temperatures higher than about 100 ± C during electrolysis. The composition of the cobalt oxides strongly depended on the electrode potential; i.e., Co 3 O 4 and CoOOH were formed in non-noble and relatively noble potential regions, respectively. When Sm was incorporated in the CoOOH by the electrolysis in solutions containing Sm 3+ , only the c lattice constant was increased due to an expansion in the layer structure.

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Section: Introductionmentioning

confidence: 99%