Highly dispersed Cu/SiO₂ catalysts doped with CeO₂ have been successfully prepared via in-situ self-assembled core-shell precursor route. The prepared catalysts were characterized by XRD, SEM, TPR, chemisorption and XPS techniques. The results showed that our newly developed method could not only prepare highly dispersed supported metal catalysts but also highly dispersed supported CeO₂ on silica. The highly dispersed CeO₂ showed strong interaction with highly dispersed Cu. The synergy between the highly dispersed CeO₂ and the highly dispersed Cu exhibited high catalytic activity for high temperature water gas shift reaction compared to the catalysts prepared with the routine method of incipient impregnation.

通过原位自组装核-壳前体路线成功地制备了掺杂有CeO _2的高分散Cu / SiO ₂催化剂。通过XRD，SEM，TPR，化学吸附和XPS技术对制备的催化剂进行了表征。结果表明，我们新开发的方法不仅可以制备高分散的负载型金属催化剂，而且可以在二氧化硅上制备高分散的负载型CeO ₂。高度分散的CeO ₂与高度分散的Cu表现出强烈的相互作用。高度分散的CeO ₂之间的协同作用 与常规浸渍法制备的催化剂相比，高分散铜对高温水煤气变换反应具有较高的催化活性。