| CeO_2/C有序介孔材料催化甘油转化制碳酸甘油酯 |
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| 引用本文： | 朱丹,何娅,王银,杨荣榛,董文生.CeO_2/C有序介孔材料催化甘油转化制碳酸甘油酯[J].工业催化,2017,25(12):44-48. |
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| 作者姓名： | 朱丹 何娅 王银 杨荣榛 董文生 |
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| 作者单位： | 陕西师范大学化学化工学院,应用表面与胶体化学教育部重点实验室,陕西 西安 710119 |
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| 基金项目： | 陕西省重点科技创新团队资助项目(2012KCT-21) |
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| 摘 要： | 采用溶剂挥发自组装法制备有序介孔CeO_2/C复合材料,利用X射线衍射仪、N_2吸附-脱附仪和透射电子显微镜对样品进行表征,考察催化甘油酯交换制备碳酸甘油脂的催化性能。结果表明,在甘油用2 mmol、碳酸二甲酯10 mmol、有序介孔CeO_2/C复合材料0.1 g、N,N-二甲基乙酰胺5 m L、反应温度140℃和反应时间3 h条件下,CeO_2/C中CeO_2质量分数为16.3%时,甘油转化率和碳酸甘油脂选择性最高,分别为76%和81.8%。
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| 关 键 词： | 催化化学 有序介孔复合材料 CeO2/C 甘油 碳酸甘油酯 |
Synthesise of ordered mesoporous CeO2/C composites for glycerol to glycerol carbonate |
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| Zhu Dan,He Ya,Wang Yin,Yang Rongzhen,Dong Wensheng.Synthesise of ordered mesoporous CeO2/C composites for glycerol to glycerol carbonate[J].Industrial Catalysis,2017,25(12):44-48. |
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| Authors: | Zhu Dan He Ya Wang Yin Yang Rongzhen Dong Wensheng |
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| Affiliation: | Key Laboratory of Applied Surface and Colloid Chemistry,MOE,School of Chemistry and Chemical Engineering,Shaanxi Normal University(SNNU),Xi’an 710062,Shaanxi,China |
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| Abstract: | Ordered mesoporous CeO2/C composite materials with various CeO2 contents were synthesized by tri-component co-assembly method and tested in interesterification of glycerol to glycerol carbonate.The microstructures of the resultant samples were characterized by X-ray diffraction,N2physical adsorption and transmission electron microscopy.The mesoporous CeO2/C composite with the CeO2 content of 16.3% exhibited good catalytic activity in the synthesis of glycerol carbonate by the transesterification of glycerol with dimethyl carbonate.Glycerol conversion of 76% and selectivity to glycerol carbonate of 81.8% were obtained when reacting 2 mmol glycerol,10 mmol dimethyl carbonate,0.1 g catalyst in 5 mL N,N-dimethylacetamide at 140 ℃ for 3 h. |
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| Keywords: | catalytic chemistry ordered mesoporous composites CeO2/C glycerol glycerol carbonate |
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