| 介孔Ti-MCM-41在苯乙烯氧化反应中的催化性能 |
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| 引用本文： | 陈丹丹,李年凯,孙鹏,孔岩.介孔Ti-MCM-41在苯乙烯氧化反应中的催化性能[J].催化学报,2009,30(7). |
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| 作者姓名： | 陈丹丹 李年凯 孙鹏 孔岩 |
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| 作者单位： | 南京工业大学化学化工学院材料化学工程国家重点实验室,江苏南京,210009 |
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| 基金项目： | 国家自然科学基金(20876077);;江苏省科技支撑计划-工业部分(BE2008142) |
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| 摘 要： | 以MCM-41为骨架,以无机钛源Ti(SO4)2为原料成功合成了不同Ti含量的Ti-MCM-41样品,并考察了它们在H2O2氧化苯乙烯反应中的催化性能,研究了溶剂和Ti含量等因素对其催化性能的影响.结果表明,该反应主要产物为苯甲醛,苯乙烯转化率和苯甲醛收率均随骨架Ti含量增加而增加;催化剂中钛含量相近时,孔径的减小能够改善其催化性能;反应体系的合适溶剂应具有一定极性,如乙腈;降低溶剂极性和H2O2浓度可减少苯乙烯的进一步氧化,从而适当增加了苯乙醛和环氧苯乙烷选择性.
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| 关 键 词： | 介孔材料 Ti-MCM-41 苯乙烯 氧化 过氧化氢 |
Catalytic Performance of Ti-MCM-41 for Styrene Oxidation |
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| CHEN Dandan,LI Niankai,SUN Peng,KONG Yan.Catalytic Performance of Ti-MCM-41 for Styrene Oxidation[J].Chinese Journal of Catalysis,2009,30(7). |
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| Authors: | CHEN Dandan LI Niankai SUN Peng KONG Yan |
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| Abstract: | A series of Ti-MCM-41 samples with different titanium contents in the MCM-41 framework were synthesized using Ti(SO4)2 as the titanium source. Their catalytic performance in the direct oxidation of styrene with hydroperoxide was studied. The effects of the solvent kinds and titanium content on the catalytic activity of Ti-MCM-41 were also investigated. The results indicated that benzaldehyde was the main product, and both the styrene conversion and benzaldehyde yield increased with increasing titanium conte... |
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| Keywords: | mesoporous material Ti-MCM-41 styrene oxidation hydrogen peroxide |
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