制备了双功能Pd/UiO-66催化剂，利用粉末X射线衍射、扫描氦离子显微镜、氮气物理吸脱附以及透射电子显微镜对其进行表征。该催化剂在正丁醛-环己酮一锅法制备2-丁基环己酮反应体系中表现出良好的正丁醛转化率（100%）和2-丁基环己酮选择性（62.6%）。考察了反应温度、Pd负载量、催化剂投加量以及酮醛投料质量比对反应结果的影响，并对催化剂进行循环评价。结果表明，在循环过程中催化剂表现出良好的循环稳定性，反应活性和产物选择性没有下降，且催化剂结构未发生变化。

Bifunctional Pd/UiO-66 catalyst is prepared and characterized by means of powder X-ray diffraction,scanning helium ion microscope,N₂ physical adsorption,and transmission electron microscope.As the catalyst is employed in preparation of 2-butylcyclohexanone from N-butyraldehyde and cyclohexanone through one-pot method,the conversion of n-butanal can reach 100% and the selectivity of 2-butylcyclohexanone can achieve 62.6%.The effects of reaction temperature,Pd loading amount,catalyst dosage and ketone/aldehyde feeding ratio on the reaction are investigated.During the cycling test,the catalyst shows good stability with little weak of activity and product selectivity.After 3 cycles of reuse,the structure of catalyst remains unchanged.

薛伟洋(1996-),男,硕士研究生,研究方向为精细化学品的绿色合成,xueweiyang2020@gmail.com