不同沉淀剂对Ce_(0．5)Zr_(0．15)Y_(0．075)La_(0．075)Al_(0．2)O_2性能的影响
Rare Metal Materials and Engineering（2007）
Abstract
采用不同的沉淀剂,用共沉淀法制备了Ce_(0.5)Zr_(0.15)Y_(0.075)La_(0.075)Al_(0.2)O_2复合材料,并通过氧脉冲吸附、BET、XRD、SEM及TPR对所制备的材料进行了表征,同时考察了焙烧温度对该材料结构性能的影响。结果表明,以碳酸铵-氨水为混合沉淀剂时,该材料表现出良好的储氧性能、织构性能、结构性能和抗老化性能;在不同的焙烧温度下均属同晶转化,样品保持稳定的萤石立方晶相固溶体结构。
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Key words
oxygen storage capacity,textural properties,structure capacity
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