铂钯双金属纳米催化剂的催化活性

由聚合物稳定的铂纳米催化剂对环己烯催化加氢反应具有较高的催化活性，在铂纳米催化剂中引入第二金属元素钯，即在纳米铂颗粒上包裹一层钯，形成具有球壳结构Pt-Pd双金属催化剂，随引入钯的量不同，其催化能力的大小发生了变化．而且调节反应溶液的pH值，催化能力也发生变化.

Investigation of Catalytic Activity of Pt/Pd Nanobimetallic Catalyst

Polymer stabilized platinuin nano-size catalyst has relatively high hydrogenation activity. Introduction of a second metal, palladium, to form a core shell structure with Pd as the shell and Pt as the core, enhances the catalytic activity substantially. The enhancement varies with the amount of Pd introduced. Changes in pH was also found to have significant effects on the catalytic activity.