负载型钌催化剂催化山梨醇氢解制乙二醇(英)

查看全文 作　　者：Inmaculada Murillo [1]Leo;Manuel Lopez [1]Granados;Jose Luis Garcia [1]Fierro;Rafael [1]Mariscal

机构地区：[1]Group of Sustainable Energy and Chemistry,Institute of Catalysis and Petrochemistry(CSIC)

出　　处：《催化学报》索引2014年第35卷第5期,共8页

基　　金：Financial support from Spanish Ministry of Economy and Competitiveness(CTQ2012-38204-C03-01);CSIC(JAE-Predoctoral grant)for her financial support 摘　　要：Supported Ru catalysts were prepared by wet impregnation to evaluate the role of different oxide supports(Al_2O_3,SiO_2,TiO_2,ZrO_2) in sorbitol hydrogenolysis to glycols.X-ray diffraction,transmission electron microscopy,hydrogen chemisorption,X-ray photoelectron spectroscopy,and NH3temperature-programmed desorption were used to characterize the catalysts,which were active in the hydrogenolysis of sorbitol.The support affected both the physicochemical properties and catalytic behavior of the supported Ru particles.The characterization results revealed that the Ru/Al_2O_3catalyst has a high surface acidity,partially oxidized Ru species on the surface,and a higher surface Ru/Al atomic ratio,which gave it the highest selectivity and yield to glycols. 关键词：负载钌催化剂山梨醇过负载二元醇 RU AL2O3催化剂氢解 X射线光电子能谱透射电子显微镜

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负载型钌催化剂催化山梨醇氢解制乙二醇(英)

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