用离子交换法合成了钼酸盐阴离子柱撑镁铝水滑石,并用XRD和XPS考察了焙烧产物MoO3/Mg (Al)O中MoO3的化学状态和分散度. 结果表明,MoO3以单分子层分散在复合氧化物Mg(Al) O的表面,其单分子层饱和分散容量为4.77 μmol/m2;超过此值后,MoO3和MgO形成体相的钼酸镁. BET测定结果表明,MoO3的存在使得Mg(Al)O的比表面积和孔体积增大.
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