Cathodic polarization of strontium-doped lanthanum ferrite in proton-conducting solid oxide fuel cell

Autor:	Tetsuya Ikuta, Hidenori Yahiro, Genji Okada, Hiroyuki Yamaura
Rok vydání:	2005
Předmět:	Materials science Inorganic chemistry chemistry.chemical_element General Chemistry Electrolyte Overpotential Condensed Matter Physics Cathode law.invention chemistry law Lanthanum Ferrite (magnet) General Materials Science Solid oxide fuel cell Platinum Proton conductor
Zdroj:	Solid State Ionics. 176:269-274
ISSN:	0167-2738
DOI:	10.1016/j.ssi.2004.08.008
Popis:	The cathodic polarization of strontium-doped lanthanum ferrite, La 1− x Sr x FeO 3−α , was studied in the hydrogen–oxygen fuel cell using proton-conducting SrCe 0.95 Yb 0.05 O 3−α as an electrolyte. The overpotential of La 0.7 Sr 0.3 FeO 3−α cathode was smaller than those of other perovskite-type oxides such as La 0.7 Sr 0.3 MnO 3−α and La 0.7 Sr 0.3 CoO 3−α , and platinum at 773–973 K. The best cathodic performance was obtained for La 0.7 Sr 0.3 FeO 3−α heat-treated at 1173 K. The cathode resistance of La 0.7 Sr 0.3 FeO 3−α was independent of p O 2 while that of sputtered platinum was proportional to p O 2 −1/4 .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1929d961868ddce614ba5a1edf956eed https://doi.org/10.1016/j.ssi.2004.08.008 Zobrazit plný text záznamu Full Text from ScienceDirect