Copper (oxide) nanoparticles with dispersion and size ranging from highly dispersed nanoparticles confined within the intra-wall pores to nanoparticles confined within the main mesopores can be simply produced via incipient wetness impregnation by using mesoporous silica supports containing the structure directing agent P123 partially occluding the intra-wall pores of SBA-15. Remarkably high copper dispersions of 69.5 down to 25.9% for metal loadings from 5 to 20 wt% were achieved as a result of the dual effect of the presence of surface silanol groups and the unique confining space between the silica walls and residual P123 in the intra-wall pores. The copper catalysts demonstrated outstanding activities in the hydrogenation of cinnamaldehyde, with TOF values ranging from 5.1 × 10⁻³ to 22.1 × 10⁻³ s⁻¹, which are much higher than those of other supported copper catalysts reported elsewhere and prepared using conventional approaches.

中文翻译：

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在SBA-15上制备的高度分散的铜（氧化物）纳米粒子被P123表面活性剂部分阻塞：朝着活性加氢催化剂的设计方向发展

可以通过使用包含结构性试剂P123部分封闭的结构的介孔二氧化硅载体，通过初期湿法浸渍来简单地生产分散和尺寸从限制在壁内孔中的高度分散的纳米粒子到限制在主要中孔中的纳米粒子的铜（氧化物）纳米粒子。SBA-15的壁内孔。由于表面硅烷醇基团的存在以及二氧化硅壁和内部残余P123之间的独特限制空间的双重影响，对于5到20 wt％的金属负载，获得了69.5到25.9％的高铜分散体。 -壁孔。铜催化剂在肉桂醛的氢化中表现出出色的活性，TOF值为5.1×10 ^-3。达到22.1×10 ^-3 s ^-1，这比其他地方报道的并使用常规方法制备的其他负载型铜催化剂要高得多。