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采用自行创制的成核/晶化隔离法,通过调变晶化时间制备了不同粒径的层状前体——镁铝水滑石,并将其于500℃焙烧,制得了孔径分布窄、具有介孔结构特征的镁铝复合氧化物,且该双金属复合氧化物的晶相结构是兼有MgO晶相和层状结构的复相结构.
The self-made nucleation / crystallization isolation method was used to prepare the layered precursor Mg-Al hydrotalcite with different particle sizes by adjusting the crystallization time and calcining at 500 ℃. Mesoporous structure, and the crystal structure of the bimetallic composite oxide is a duplex structure having both a MgO crystal phase and a layered structure.