Influence of composition and heterogenization to titania matrix of Pd-Zn nanoparticles has been studied in selective hydrogenation of the triple bond of 2-methyl-3-butyn-2-ol (MBY). Pd-Zn bimetallic nanoparticles with the various molar ratios Pd/Zn have been obtained by chemical reduction method. Composition- controlled sol-gel technique was employed to synthesize Pd-Zn/TiO₂ catalysts. The structure properties of the bimetallic catalysts were characterized by inductively coupled plasma atomic emission spectroscopy (ICP-AES), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Computer modeling for XRD patterns was first used to identify the composition of Pd-Zn alloy and to determine the particle size. For the colloidal and embedded nanoparticles dependences of physicochemical and catalytic properties on composition are different being determined respectively by geometric and electronic effects. The addition of zinc with Pd/Zn ratio of 1 increased selectivity to alkene at 99% conversion from 92.9% for the Pd catalyst to 96.9% for bimetallic catalysts, which is mainly caused by alloy formation.

在2-甲基-3-丁炔-2-醇（MBY）的三键选择性加氢中，研究了组成和杂化对Pd-Zn纳米颗粒的二氧化钛基质的影响。通过化学还原法获得了具有各种摩尔比Pd / Zn的Pd-Zn双金属纳米颗粒。采用成分控制的溶胶-凝胶技术合成Pd-Zn / TiO ₂催化剂。通过电感耦合等离子体原子发射光谱法（ICP-AES），高分辨率透射电子显微镜（HRTEM），X射线衍射（XRD）和X射线光电子能谱（XPS）表征了双金属催化剂的结构性能。XRD图案的计算机建模首先用于识别Pd-Zn合金的成分并确定粒径。对于胶体和嵌入的纳米颗粒，分别通过几何和电子效应来确定其物理化学和催化性质对组成的依赖性是不同的。Pd / Zn比率为1的锌的添加提高了对烯烃的选择性，转化率从99％的Pd催化剂增加到96.9％的双金属催化剂，转化率达99％，这主要是由合金形成引起的。