埃洛石表面修饰并负载salen钼高效催化烯烃环氧化反应

龙雨 袁冰 马建泰

引用本文: 龙雨, 袁冰, 马建泰. 埃洛石表面修饰并负载salen钼高效催化烯烃环氧化反应[J]. 催化学报, 2015, 36(3): 348-354. doi: 10.1016/S1872-2067(14)60244-8 shu
Citation:  Yu Long, Bing Yuan, Jiantai Ma. Epoxidation of alkenes efficiently catalyzed by Mo salen supported on surface-modified halloysite nanotubes[J]. Chinese Journal of Catalysis, 2015, 36(3): 348-354. doi: 10.1016/S1872-2067(14)60244-8 shu

埃洛石表面修饰并负载salen钼高效催化烯烃环氧化反应

    通讯作者: 马建泰
摘要: 采用温和的化学表面改性和自组装方法成功制备了埃洛石纳米管负载salen钼(HNTs-SL-Mo)催化剂, 运用透射电镜、X射线衍射、红外光谱、诱导偶合等离子体谱和X射线光电子能谱表征了催化剂的形态、大小和分散性等性质.结果证明了salen结构的存在和埃洛石配位钼催化剂的成功制备.制备的催化剂在各种烯烃的环氧化反应中均有很好的活性, 且活性高于均相催化剂.对比实验表明, 在固定MoO(O2)2(DMF)2时, salen结构发挥了重要作用, 不能用N原子作为单一配体来代替.本文还推测了钼和salen配体可能的连接方式和该催化剂催化烯烃环氧化反应的机理.该催化剂在重复使用8次后其活性未见明显下降, 表现出优异的重复使用性能.由于埃洛石是一种廉价易得的材料, 因此它可为设计效果独特的催化剂提供一个选择.

English

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  • 发布日期:  2015-03-20
  • 收稿日期:  2014-09-13
  • 网络出版日期:  2014-11-03
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