钌掺杂MCM-48介孔分子筛的表征及催化氧化环己烷性能的研究(英文)

Selective Oxidation of Cyclohexane in Air over Mesoporous Molecular Sieves Ru-doped MCM-48

以在室温条件下快速制备的一系列Ru掺杂的MCM-48介孔分子筛为催化剂,进行了无溶剂条件下空气催化氧化环己烷制环己醇和环己酮的反应研究,并通过XRD、N2吸附脱附、FT-IR等多种表征手段对该催化剂进行系统研究.表征结果表明该催化剂具有典型的MCM-48介孔材料结构,合成过程中加入的Ru以不同形态同时存在于催化剂中.催化反应的结果显示该催化剂在较温和反应条件下具有良好催化活性,并且不同的Ru物种在反应中呈现不同的活性.

A series of Ru-doped mesoporous molecular sieves have been synthesized and characterized by XRD,N 2 adsorption / desorption,ICP,FT-IR,FE-SEM,and HRTEM.The characterization results reveal the structure of catalyst and the nature of Ru species.The catalytic performance of the synthesized catalysts has been evaluated for the oxidation of cyclohexane under a mild condition using air as oxidant without any solvent.Catalytic result shows that these catalysts are efficient,and that the behavior of Ru species is different.