用微乳法和异丙醇-聚乙二醇法制备了磁铅石型稀土高温燃烧催化剂LaMnAl11O19,并用XRD,BET和TPR技术及甲烷燃烧活性对其进行了表征,实验结果表明,微乳法和异丙醇-聚乙二醇法在1400℃的高温下焙烧3小时均可制备出主相结构为LaMnAl11O19的六铝酸盐催化剂,异丙醇-聚乙二醇法制备的LaMnAl11O19具有较高的比表面,微乳法制备的LaMnAl11O19具有较高甲烷催化燃烧活性.
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