08 Ce_(0.8)Gd_(0.2)O_(1.9)电解质的电子导电研究

刘媛媛;安胜利;李舒婷;蔡长焜;

• 1:内蒙古科技大学材料与冶金学院

• 2:内蒙古科技大学化学与化工学院

• 3:内蒙古科技大学内蒙古先进陶瓷与器件重点实验室

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摘要(Abstract)：

利用溶胶凝胶合成法制备了Ce_(0.8)Gd_(0.2)O_(1.9)(GDC)电解质,并利用XRD,SEM对GDC粉体和电解质基片进行了物相表征.运用Hebb-Wagner极化法组装离子阻塞电极,考察GDC电解质在空气气氛下450～750℃的电子电导率.实验结果表明,GDC呈立方萤石结构,电解质片表面与断面致密.同时,测定出的GDC电子电导率在750℃时为5.698×10~(-5) S/cm,在450～750℃下电子电导率与温度呈良好的线性关系.

关键词(KeyWords)： 溶胶-凝胶法;Gd_2O_3掺杂CeO_2;固体电解质;Hebb-Wagner极化法

基金项目(Foundation): 国家自然科学基金资助项目(51474133);; 内蒙古自治区自然科学基金资助项目(2017MS0221)

作者(Author): 刘媛媛;安胜利;李舒婷;蔡长焜;

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