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二氧化铈(CeO_2)是一种可还原氧化物材料,它可以在还原性气氛中产生表层氧缺陷,在氧化性气氛中修复氧缺陷。这种氧离子存储特性使得它在燃料电池固态电解液材料、高性能汽车尾气净化器等方面有非常好的应用前景。CeO_2(111)二维原子晶体材料(或薄膜)最表层的O-Ce-O单元层里存在着表层和亚表层两种氧缺陷,但在
Ceria (CeO 2) is a reducible oxide material that produces surface oxygen defects in a reducing atmosphere and oxygen defects in an oxidizing atmosphere. This oxygen ion storage properties make it very promising for fuel cell solid electrolyte materials, high performance automotive exhaust gas purifiers and more. There are two kinds of oxygen defects in the O-Ce-O unit layer on the topmost layer of CeO_2 (111) two-dimensional atomic crystal material (or thin film)