| 负载型钌催化剂催化山梨醇氢解制乙二醇(英) |
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| 作者姓名： | Inmaculada Murillo Leo Manuel Lopez Granados Jose Luis Garcia Fierro Rafael Mariscal |
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| 作者单位： | Group of Sustainable Energy and Chemistry, Institute of Catalysis and Petrochemistry (CSIC), C/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain |
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| 基金项目： | Financial support from Spanish Ministry of Economy and Competitiveness(CTQ2012-38204-C03-01);CSIC(JAE-Predoctoral grant)for her financial support |
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| 摘 要： | Supported Ru catalysts were prepared by wet impregnation to evaluate the role of different oxide supports（Al2O3,SiO2,TiO2,ZrO2） 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/Al2O3catalyst 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.
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| 关 键 词： | Sorbitol Glycols Hydrogenolysis Ruthenium Oxide supports |
| 收稿时间： | 2014-03-17 |
Sorbitol hydrogenolysis to glycols by supported ruthenium catalysts |
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| Inmaculada Murillo Leo,Manuel Lopez Granados,Jose Luis Garcia Fierro,Rafael Mariscal.Sorbitol hydrogenolysis to glycols by supported ruthenium catalysts[J].Chinese Journal of Catalysis,2014,35(5):614-621. |
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| Authors: | Inmaculada Murillo Leo Manuel Lopez Granados Jose Luis Garcia Fierro Rafael Mariscal |
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| Institution: | Group of Sustainable Energy and Chemistry, Institute of Catalysis and Petrochemistry (CSIC), C/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain |
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| Abstract: | Supported Ru catalysts were prepared by wet impregnation to evaluate the role of different oxide supports (Al2O3, SiO2, TiO2, ZrO2) in sorbitol hydrogenolysis to glycols. X-ray diffraction, transmission electron microscopy, hydrogen chemisorption, X-ray photoelectron spectroscopy, and NH3 temperature-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/Al2O3 catalyst 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. |
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| Keywords: | Sorbitol Glycols Hydrogenolysis Ruthenium Oxide supports |
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