采用草酸盐凝胶共沉淀法制备了系列Ni-Ce-O复合氧化物催化剂,考察了制备方法及催化剂组成对其催化甲烷燃烧性能的影响.结果表明,草酸盐凝胶共沉淀法制备的Ni-Ce-O催化剂上甲烷的催化燃烧活性明显高于常规方法制备的Ni-Ce-O催化剂;Ni-Ce-O催化剂的组成显著影响其催化性能.当镍/铈比值为4时,在406℃时即可使50%甲烷转化.Ni-Ce-O复合氧化物中NiO的晶格微应变是影响其催化甲烷燃烧性能的重要因素.
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