Anodic Performance and Intermediate Temperature Fuel Cell Testing of La0.75Sr0.25Cr0.5Mn0.5O3-src="http://pubs.acs.org/images/gifchars/

详细信息    查看全文

• 作者：J. Pe&ntilde ; a-Martí ; nez ; D. Marrero-L&oacute ; pez ; J. C. Ruiz-Morales ; C. Savaniu ; P. Nú ; &ntilde ; ez ; and J. T. S. Irvine
• 刊名：Chemistry of Materials
• 出版年：2006
• 出版时间：February 21, 2006
• 年：2006
• 卷：18
• 期：4
• 页码：1001 - 1006
• 全文大小：336K
• 年卷期：v.18,no.4(February 21, 2006)
• ISSN：1520-5002

文摘

This study is focused on the electrochemical performance of perovskite-type materials based on dopedLaGaO₃ (LGO). La_0.9Sr_0.1Ga_0.8Mg_0.2O_{3-s/gifchars/delta.gif" BORDER=0 >} (LSGM) and La_0.9Sr_0.1Ga_0.8Mg_0.115Co_0.085O_{3-s/gifchars/delta.gif" BORDER=0 >} (LSGMCo) wereused as electrolytes and La_0.8Sr_0.2MnO_{3-s/gifchars/delta.gif" BORDER=0 >} (LSM) and La_0.75Sr_0.25Cr_0.5Mn_0.5O_{3-s/gifchars/delta.gif" BORDER=0 >} (LSCM) as cathode andanode material, respectively. Much better performance was obtained at an LSGM electrolyte than atLSGMCo, probably due to interfacial reactions between LSGMCo and LSM. An LSGM electrolyte wasprepared by tape casting with a thickness of about 120 s/entities/mgr.gif">m and good values of power output in aconventional electrolyte-supported cell were achieved, 425 and 570 mW/cm² using wet 5% H₂/Ar andpure hydrogen as fuel, respectively, and pure O₂ as oxidant at 1073 K.