ChemInform Abstract: High Performance Solid Oxide Fuel Cell Cathode Fabricated by Electrochemical Vapor Deposition

Autor:	Masamichi Ippommatsu, Shoji Otoshi, Atsuko Kajimura, Minoru Suzuki, H. Sasaki, Sugiura Nozomi
Rok vydání:	2010
Předmět:	Analytical chemistry Oxide General Medicine Partial pressure Chemical vapor deposition Electrochemistry Cathode law.invention chemistry.chemical_compound chemistry law Solid oxide fuel cell Thin film Yttria-stabilized zirconia
Zdroj:	ChemInform. 25
ISSN:	0931-7597
DOI:	10.1002/chin.199446014
Popis:	La(Sr)MnO[sub 3] cathodes have been investigated as high temperature oxygen reduction electrodes in the solid oxide fuel cells (SOFCs). The cathodes consist of 10 mole percent of yttria stabilized zirconia (YSZ) thin film electrolyte layer deposited on a porous La[sub 0.81]Sr[sub 0.09]MnO[sub 3] tube using the electrochemical vapor deposition method. The La(Sr)MnO[sub 3]/YSZ cathodes have different electrochemical properties from those fabricated with the sintering method. The cathode polarization was about 1 mV at a current density of 1.5 A/cm[sup 2] in oxygen at 1,000 C. This type of cathode has an extremely large phase boundary and large interfacial capacitance (more than 1 F/cm[sup 2]) which is approximately proportional to the oxygen partial pressure.
Databáze:	OpenAIRE
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