本文应用溶胶-凝胶法制备了中温固体氧化物燃料电池电解质材料Ce1-xGdxO2-x/2(CGO),研究了凝胶剂用量和焙烧温度对CGO的晶相、粒度及粒度分布、粒子形态结构以及电导率等性能的影响.结果表明该方法合成CGO粉末粒子在60nm左右,当凝胶剂用量不小于2倍摩尔产品量时可以不通过焙烧即可得到较完整的萤石型结构,1300℃以上焙烧时颗粒开始长大.用柠檬酸或甘氨酸作凝胶剂对制备的CGO电导率没有影响.
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