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中文摘要：
制备了SiO2负载的壳聚糖席夫碱钯催化剂,利用X射线衍射、红外光谱和热重等方法对催化剂进行了表征,并考察了该催化剂催化羰基加氢为亚甲基的反应性能,以二苯甲酮为底物,系统地研究了反应时间、反应温度和催化剂用量等因素对反应性能的影响.结果表明,该催化剂具有较高的催化芳香羰基加氢为亚甲基的活性和选择性,且反应可在较低的温度和常压的温和条件下进行.
英文摘要：
A silica-supported chitosan（CS） Schiff base（SB） palladium complex（SiO2-CS-SB-Pd） was prepared and characterized by X-ray diffraction,Fourier transform infrared spectroscopy,and thermal gravimetric analysis.The catalytic performance of the catalyst in hydrogenation of a series of aromatic carbonyl compounds was studied.The influence of the reaction time,reaction temperature,and catalyst amount on hydrogenation of benzophenone was also investigated.The results indicated that the SiO2-CS-SB-Pd catalyst has excellent catalytic activity for hydrogenation of the aromatic aldehydes or ketones into corresponding hydrocarbons at low temperature and under 0.1 MPa.The catalyst is perfectly leach-proof and can be recycled at least two consecutive runs without any obvious loss in activity for the hydrogenation of benzophenone.
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