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负载型钌催化剂催化山梨醇氢解制乙二醇(英) 被引量:4
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作者 Inmaculada Murillo Leo Manuel Lopez Granados +1 位作者 jose luis garcia fierro Rafael Mariscal 《催化学报》 SCIE EI CAS CSCD 北大核心 2014年第5期614-621,共8页
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 micros... 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. 展开更多
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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