| SYNTHESIS OF POLYMER-STABILIZED PLATINUM/RUTHENIUM BIMETALLIC COLLOIDS AND THEIR CATALYTIC PROPERTIES FOR SELECTIVE HYDROGENATION OF CROTONALDEHYDE |
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| 作者姓名： | Wei-xia Tu Han-fan Liu |
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| 作者单位： | [1]Key Lab for Nanomaterials, Ministry of Education; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China [2]Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China |
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| 基金项目： | 国家自然科学基金
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中国科学院资助项目 |
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| 摘 要： | Polymer-stabilized platinum/ruthenium bimetallic colloids （Pt/Ru） were synthesized by polyol reduction with microwave irradiation and characterized by TEM and XPS. The colloidal nanoparticles have small and narrow size distributions. Catalytic performance of the Pt/Ru colloidal catalysts was investigated on the selective hydrogenation of crontonaldehyde （CRAL）. A suitable amount of the added metal ions and base can improve the selectivity of CRAL to crotylalcohol （CROL） remarkably. The catalytic activity and the selectivity are dependent on the compositions of bimetallic colloids. Thereinto, PVP-stabilized 9Pt/1Ru colloid with a molar ratio of metals Pt：Ru = 9：1 shows the highest catalytic selectivity 77.3% to CROL at 333 K under 4.0 MPa of hydrogen.
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| 关 键 词： | 聚合体 稳定性 合成方法 铂 钌 复本位制 胶体 |
| 收稿时间： | 2005-01-25 |
| 修稿时间： | 2005-02-02 |
SYNTHESIS OF POLYMER-STABILIZED PLATINUM/RUTHENIUM BIMETALLIC COLLOIDS AND THEIR CATALYTIC PROPERTIES FOR SELECTIVE HYDROGENATION OF CROTONALDEHYDE |
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| Wei-xia Tu Han-fan Liu.SYNTHESIS OF POLYMER-STABILIZED PLATINUM/RUTHENIUM BIMETALLIC COLLOIDS AND THEIR CATALYTIC PROPERTIES FOR SELECTIVE HYDROGENATION OF CROTONALDEHYDE[J].Chinese Journal of Polymer Science,2005,0(5):487-495. |
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| Authors: | Wei-xia Tua Han-fan Liu |
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| Institution: | Key Lab for Nanomaterials, Ministry of Education; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029,China |
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| Abstract: | Polymer-stabilized platinum/ruthenium bimetallic colloids (Pt/Ru) were synthesized by polyol reduction with microwave irradiation and characterized by TEM and XPS. The colloidal nanoparticles have small and narrow size distributions. Catalytic performance of the Pt/Ru colloidal catalysts was investigated on the selective hydrogenation of crontonaldehyde (CRAL). A suitable amount of the added metal ions and base can improve the selectivity of CRAL to crotylalcohol (CROL) remarkably. The catalytic activity and the selectivity are dependent on the compositions of bimetallic colloids. Thereinto, PVP-stabilized 9Pt/1Ru colloid with a molar ratio of metals Pt:Ru = 9:1 shows the highest catalytic selectivity 77.3% to CROL at 333 K under 4.0 MPa of hydrogen. |
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| Keywords: | Platinum/ruthenium bimetallic colloid Microwave irradiation Polyol reduction Selective hydrogenation Crotonaldehyde |
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