Pd(0)-doped mesoporous TiO2 nanoparticles (Pd/TiO2) have been synthesized using an EISA method. The catalytic activity of Pd/TiO2 nanoparticles (NPs) is significantly enhanced under solar light irradiation for the Heck reaction. The Heck coupling product gives a considerable amount of Z-isomer, due to photochemical isomerization of the initially formed E-isomer, providing a facility for the time-dependent selectivity of E/Z-isomers under sunlight at ambient conditions.
Pd(0)掺杂的介孔TiO2纳米颗粒(Pd/TiO2)采用EI
SA方法合成。Pd/TiO2纳米颗粒的催化活性在太阳光照射下显著增强,适用于Heck反应。Heck耦合产物生成了相当数量的Z-异构体,这是由于初始形成的E-异构体的光
化学异构化,使得在常温条件下太阳光照射下E/Z异构体的时间依赖选择性得以实现。