Bimetallic Pt–Sn/γ-alumina catalyst for highly selective liquid phase hydrogenation of diethyl succinate to γ-butyrolactone |
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| Affiliation: | 1. Institute of Hydrocarbons Processing SB RAS, Neftezavodskaya Str., 54, 644040, Omsk, Russia;2. Omsk State Technical University, Mira Ave., 11, 644050, Omsk, Russia;3. Boreskov Institute of Catalysis SB RAS, Acad. Lavrentieva Ave., 5, 630090, Novosibirsk, Russia;4. Nikolaev Institute of Inorganic Chemistry SB RAS, Acad. Lavrentieva Ave., 3, 630090, Novosibirsk, Russia;5. Budker Institute of Nuclear Physics SB RAS, Acad. Lavrentieva Ave., 11, 630090, Novosibirsk, Russia;6. ESRF, 38043, Grenoble, France;7. HZDR, Institute of Resource Ecology, 01314, Dresden, Germany;1. Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;2. Department of Chemical Engineering, Columbia University, New York, NY 10027, USA;3. Chemistry Department, Brookhaven National Laboratory, New York, NY 11973, USA;1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China;2. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China;1. School of Engineering and Technology, Walailak University, Nakhon Si Thammarat 80160, Thailand;2. School of Science, Walailak University, Nakhon Si Thammarat 80160, Thailand;3. Research Group in Applied, Computational and Theoretical Science (ACTS), Walailak University, Nakhon Si Thammarat 80160, Thailand;4. The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand;5. Center of Excellence on Petrochemical and Materials Technology, Bangkok 10330, Thailand |
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| Abstract: | Platinum–tin bimetallic catalyst on γ-alumina support was prepared by impregnation method and was reduced by sodium borohydride at room temperature. XRD and XPS characterization revealed that platinum was reduced to Pt0 while, tin was probably partially reduced to Sn2+ due to the low temperature reduction method and Sn0 was completely absent, avoiding the formation of Pt–Sn alloy. Pt–Sn/γ-alumina (Pt 1%, Sn 9%) thus prepared was found to give almost complete selectivity to γ-butyrolactone in liquid phase hydrogenation of diethyl succinate. A plausible reaction pathway is proposed involving Pt–O–Sn state and high selectivity to GBL is due to the Lewis acidity of Sn2+/4+. |
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