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大孔MgO/ZrO2固体碱的制备及催化性能

尹锡俊 ,  龙能兵 ,  张祥洲 ,  侯琳熙

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引用本文: 尹锡俊, 龙能兵, 张祥洲, 侯琳熙. 大孔MgO/ZrO2固体碱的制备及催化性能[J]. 无机化学学报, 2013, 29(4): 739-746. doi: 10.3969/j.issn.1001-4861.2013.00.098 shu
Citation:  YIN Xi-Jun, LONG Neng-Bing, ZHANG Xiang-Zhou, HOU Lin-Xi. Preparation and Catalytic Property of Macroporous MgO/ZrO2 Composite Catalyst[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(4): 739-746. doi: 10.3969/j.issn.1001-4861.2013.00.098 shu

大孔MgO/ZrO2固体碱的制备及催化性能

  • 基金项目:

    浙江省教育厅2012年度科研计划项目(No.Y201223742) (No.Y201223742)

    宁波大学王宽诚幸福基金资助项目。 

摘要: 以多孔聚合物为整体型模板, 利用锆酸四丁酯原位水解并结合高温烧结的方法制备出大孔ZrO2载体, 通过Mg(NO3)2溶液浸渍、高温煅烧制备出大孔MgO/ZrO2复合材料。SEM、FTIR、XRD、TG-DSC表征发现ZrO2载体是由三维连续的纳米薄层构成的大孔材料, MgO以纳米颗粒形式沉积在ZrO2的三维超薄层上。进一步通过CO2-TPD手段发现该ZrO2表面具有弱碱性位, MgO的负载显著增加了复合物的碱性。以碳酸二甲酯和异辛醇酯交换合成碳酸二异辛酯为探针反应, 考察焙烧温度及活性组分负载量等制备条件对大孔MgO/ZrO2固体碱催化活性的影响。结果表明, 该催化剂对碳酸二异辛酯的合成具有较好的催化活性, 当焙烧温度为600℃, MgO含量为50%时目标产物的产率可高达到65%。

English

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  • 收稿日期:  2012-10-06
  • 网络出版日期:  2012-11-28
通讯作者: 陈斌, bchen63@163.com
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