双金属氧化物和氧化物载体组分间的相互作用

Studies on the Interactions of Binary Oxides and Oxide Support

讨论了一些过渡金属氧化物 (NiO ,CuO或MoO3 )在经改性所得复合载体 (TiO2 γ Al2 O3 ,MoO3 t ZrO2或NiO t ZrO2 )上的分散作用 ,这些三元体系中实验测定的氧化物分散容量与研究负载型二元氧化物体系所得嵌入模型的估算值基本相符 ;样品的表面组成、结构和性能与载体的表面结构、过渡金属氧化物的负载量和加料顺序以及焙烧温度密切相关 .

The dispersion of transitional metal oxide (NiO, CuO or MoO 3) on modified oxide support (TiO 2 γ Al 2O 3, MoO 3 t ZrO 2 or NiO t ZrO 2) and the interactions among the oxide components in these ternary oxide systems are discussed. The experimentally measured dispersion capacities of the transition metal oxides are basically consistent with the values estimated by the incorporation model proposed previously based on the studies of binary oxide systems. The surface composition, structure and properties of the supported oxide species are closely related to the surface structure of the support, the loading amount and the adding sequence of the individual oxide components as well as the calcination temperature used for the preparation of the samples.