| 功能化碳纳米管作为固体碱用于Knoevenagel缩合 |
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| 引用本文： | 杨新玲,王焘,龚慧萍,华伟明,乐英红,高滋.功能化碳纳米管作为固体碱用于Knoevenagel缩合[J].无机化学学报,2013,29(18). |
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| 作者姓名： | 杨新玲 王焘 龚慧萍 华伟明 乐英红 高滋 |
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| 作者单位： | 复旦大学化学系, 上海市分子催化和功能材料重点实验室, 上海 200433,复旦大学化学系, 上海市分子催化和功能材料重点实验室, 上海 200433,复旦大学化学系, 上海市分子催化和功能材料重点实验室, 上海 200433,复旦大学化学系, 上海市分子催化和功能材料重点实验室, 上海 200433,复旦大学化学系, 上海市分子催化和功能材料重点实验室, 上海 200433,复旦大学化学系, 上海市分子催化和功能材料重点实验室, 上海 200433 |
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| 基金项目： | 国家自然科学基金（No.21273043）和上海市科学技术委员会（No.13DZ2275200）资助项目。 |
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| 摘 要： | 采用液相沉积方法分别制备了聚乙烯亚胺功能化和聚4-乙烯基吡啶功能化的碳纳米管催化剂，利用N2吸附/脱附、透射电子显微镜（TEM）、热重分析（TG）以及酸碱滴定等方法对所得催化剂的结构和碱性进行了表征，测试了其对于苯甲醛和丙二腈的Knoevenagel缩合反应的催化性能。结果发现，聚乙烯亚胺功能化的碳纳米管具有比聚4-乙烯基吡啶功能化的催化剂更高的碱催化能力。对碳纳米管进行强酸预处理可增加其与修饰剂的相互作用，虽然会降低其碱催化活性，但却可使其稳定性大大提高。
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| 关 键 词： | 碳纳米管 聚乙烯亚胺 碱性 稳定性 Knoevenagel缩合 |
| 收稿时间： | 5/6/2016 12:00:00 AM |
Functionalized Carbon Nanotubes as Solid Bases for Knoevenagel Condensation |
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| YANG Xin-Ling,WANG Tao,GONG Hui-Ping,HUA Wei-Ming,YUE Ying-Hong and GAO Zi.Functionalized Carbon Nanotubes as Solid Bases for Knoevenagel Condensation[J].Chinese Journal of Inorganic Chemistry,2013,29(18). |
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| Authors: | YANG Xin-Ling WANG Tao GONG Hui-Ping HUA Wei-Ming YUE Ying-Hong and GAO Zi |
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| Institution: | Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China,Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China,Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China,Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China,Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China and Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China |
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| Abstract: | Polyethyleneimine functionalized carbon nanotubes (PEE-CNTs) and poly(4-vinyl pyridine) functionalized ones (PVP-CNTs) were prepared by liquid deposition, and were characterized by N2 adsorption/desorption, TEM, TG and acid-base titration. Their catalytic behaviors in Knoevenagel condensation of benzaldehyde and malononitrile were tested. PEE-CNTs show higher catalytic activity than PVP-CNTs. Pretreatment of carbon nanotube by strong acid before deposition can greatly enhance the catalytic stability of the catalysts though their initial catalytic activity drops. |
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| Keywords: | carbon nanotubes polyethyleneimine basicity stability Knoevenagel condensation |
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