高氨基含量有机-无机杂化SiO2催化正戊醛自缩合反应
PDF下载 (111)张玫芳,潘志姣,王振云,陈 晨.高氨基含量有机-无机杂化SiO2催化正戊醛自缩合反应[J].宁波大学学报(理工版),2025,38(6):60-66.DOI:10.20098/j.cnki.1001-5132.2025.0514
Zhang Meifang,Pan Zhijiao,Wang Zhenyun,Chen Chen.High-amine-content organic-inorganic hybrid SiO2 materials catalyzing n-pentanal self-condensation[J].Journal of Ningbo University(Natural Science & Engineering Edition),2025,38(6):60-66.DOI:10.20098/j.cnki.1001-5132.2025.0514
| Title: | High-amine-content organic-inorganic hybrid SiO2 materials catalyzing n-pentanal self-condensation |
| 作者: | 张玫芳, 潘志姣, 王振云, 陈 晨 |
| Author(s): | Zhang Meifang, Pan Zhijiao, Wang Zhenyun, Chen Chen |
| 关键词: | 有机-无机杂化二氧化硅; 高氨基含量; 催化; 正戊醛自缩合 |
| Keywords: | organic-inorganic hybrid silica; high amino content; catalysis; n-pentanal self-condensation |
| 分类号: | TQ426.7 |
| DOI: | 10.20098/j.cnki.1001-5132.2025.0514 |
| 文献标识码: | A |
| 摘要: | 通过反相微乳液法成功合成了系列高氨基含量的有机-无机杂化二氧化硅催化剂，其氨基摩尔分数高达70%~90%。该系列材料表面含有丰富的氨基作为碱性催化位点，使其在碱催化的羟醛缩合反应中表现出优异的催化活性。其中80AP-SiO2催化活性最高，在80℃反应温度下催化正戊醛自缩合反应，可在5h内实现正戊醛99%的高转化率以及主产物2-丙基-2-庚烯醛（2-PHEA）90%的高选择性。 |
| Abstract: | This study successfully synthesized a series of organic-inorganic hybrid silica catalysts with high amino group mole fraction (70%-90%) via the reversed-phase microemulsion method. These materials possess abundant surface amino groups acting as basic catalytic sites, enabling them to demonstrate excellent catalytic activity in base-catalyzed aldol condensation reactions. Among them, 80AP-SiO2 exhibited the highest catalytic activity. Using 80AP-SiO2 as the catalyst for the self-condensation of n-pentanal at 80℃, a high n-pentanal conversion of 99% and a high selectivity of 90% for the main product, i.e. 2-propyl-2-heptenal (2-PHEA), were achieved within 5 hours. |
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| 备注/Memo: | 收稿日期：2025−05−16 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ 基金项目：国家自然科学基金（21872075）；宁波市自然科学基金（202003N4096） 第一作者：张玫芳，硕士研究生，主要研究方向为有机-无机二氧化硅材料的羟醛缩合反应。E-mail: 2803331789@qq.com *通信作者：陈 晨，教授，主要研究方向为多相催化研究。E-mail: chenchen@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
