采用共沉淀法、溶胶-凝胶法和反相微乳液法制备六铝酸盐催化剂K2 MnAl11O9,利用XRD、BET和TGDTA技术及甲烷燃烧活性对催化剂进行了表征和活性验证.结果表明,3种方法所制备催化剂经1200℃焙烧4h后均可以形成完整的六铝酸盐晶型,同时都具有高的催化性能和高温稳定性,其中反相微乳液法制备的K2MnAl11O19催化剂具有较高的比表面积和甲烷催化燃烧活性,起燃温度T10％=458℃,至676℃(T90％)甲烷完全转化.
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