溶胶-凝胶法在纳米La_(1-x)M_xCrO_3粉料制备中的应用  

Application of Sol-Gel Method to Synthesis of La_(1-x)M_xCrO_3(M=Sr,Ca) Nanometer-size Powders

作　　者：赵新明[1] 李德辉[2] 孙良成[1] 梁春雷[1] 敖青[1] 李胜利[1] 

机构地区：[1]山东大学材料科学与工程学院,山东济南250061 [2]包头稀土研究院,内蒙古包头014010

出　　处：《稀土》2003年第6期60-63,共4页Chinese Rare Earths

基　　金：国家"十五""863"资助项目(2001AA327010);山东省自然科学基金(Y2001F11)

摘　　要：掺杂二价碱土金属的铬酸镧是目前研究最深入和应用效果最好的固体氧化物燃料电池(SOFC)的连接材料,它几乎占整个SOFC制造成本的一半。制备工艺有固相法、溶胶-凝胶法、化学共沉淀法、联氨法和水热法等。本文综述了溶胶-凝胶法及用该方法制备La1-xMxCrO3(M=Sr,Ca)材料的现状。Alkaline-earth-doped lanthanum chromites are the most promising candidates for solid oxide fuel cell (SOFC) inter-connectors. In SOFC manufacturing, the lanthanum chromites occupy almost 50% production cost of the SOFC. Many methods were applied for materials preparation, such as, solid-state reaction, sol-sel, coprecipitation technique, hydrothermal synthesis and hydrazine method. This paper summarized the sol-gel method and the research status of the synthesis of La_(1-x)M_xCrO_3 nanometer-size powders.

关 键 词：溶胶-凝胶 SOFC 铬酸镧 

分 类 号：O648.16[理学—物理化学] O614.33[理学—化学]