三元复合氧化物的制备及应用研究进展

Recent progress in preparation and application of ternary composite oxide

随着在诸多领域对复合氧化物性能要求的不断提高,研究开发出高性能的三元复合氧化物逐渐进入科研者的视线,其成果对新型材料的合成与应用具有十分重要的意义。本文介绍了固相法、溶胶-凝胶法、共沉淀法3种常用制备三元复合氧化物的方法以及影响其性能的因素,主要是温度、摩尔比、p H。其后综述了近年来三元复合氧化物在催化、环保、新能源领域的应用研究进展,并对其发展前景作出了展望。分析表明,在三元复合氧化物体系中,每种元素对材料有着不同的贡献,使复合材料更大限度地发挥其性能,其活性和稳定性均优于二元复合氧化物。最后指出针对特殊性能探索合成思路是研究三元复合氧化物的重点,为合成技术走向工业化生产奠定基础。

With the increasing requirements of performance of composite oxides,developing high-performance ternary composite oxides has attracted attentions of researchers in many fields.The synthesis and application of these new materials is of great significance.This paper introduces three commonly used preparation methods of the ternary composite oxides：solid phase method,sol-gel method,coprecipitation method as well as the effect of reaction temperature,mole ratio and p H on their performance.The research progress of ternary composite oxides in the field of catalysis,environmental protection and new energy in recent years are reviewed,and the development prospect are also discussed.Analysis shows that each element in the ternary composite oxide system has different contributions to the materials giving rise to maximize composite materials properties,and higher activity and stability than those of binary complex oxides.Finally,we figure out the research focus of ternary composite oxides is to explore synthetic methods for special performance,which lays a good foundation for the future industrial application.