| 锆钇柱撑蒙脱土负载Pd催化剂的催化性能研究 |
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| 引用本文： | 齐灵燕,陈敏,宋萃,周仁贤,郑小明.锆钇柱撑蒙脱土负载Pd催化剂的催化性能研究[J].无机化学学报,2008,24(3):451-455. |
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| 作者姓名： | 齐灵燕 陈敏 宋萃 周仁贤 郑小明 |
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| 作者单位： | 浙江大学西溪校区催化研究所,杭州,310028 |
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| 基金项目： | 国家自然科学基金
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国家重点基础研究发展计划(973计划) |
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| 摘 要： | 合成了锆钇柱撑蒙脱土(Zr-Y-MMT)载体，并用于丙酮、甲苯和乙酸乙酯的催化氧化。通过XRD、TEM及N2吸附-脱附技术对Zr-Y-MMT载体和负载Pd催化剂(Pd/Zr-Y-MMT)进行了表征。XRD结果显示，经锆钇柱撑后蒙脱土的层间距由1.27 nm增大至1.78 nm；N2吸脱附结果表明，经锆钇柱撑后，其比表面积有了很大的增加，由62 m2·g-1增大至395 m2·g-1。活性评价结果发现，Zr-Y-MMT载体比Na-MMT有更好的催化活性，其完全氧化丙酮、甲苯和乙酸乙酯的温度分别为320 ℃、350 ℃和290 ℃。此外，当此载体上负载0.1wt%Pd时，其用于完全氧化甲苯的活性有了明显的改进。
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| 关 键 词： | 柱撑蒙脱土 催化氧化 稀土 |
| 文章编号： | 1001-4861(2008)03-0451-05 |
| 收稿时间： | 2007/11/19 0:00:00 |
| 修稿时间： | 2007年11月19 |
Catalytic Performance of Pd Catalyst Supported on Zirconium and Yttrium Pillared Montmorillonite |
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| QI Ling-Yan,CHEN Min,SONG Cui,ZHOU Ren-Xian and ZHENG Xiao-Ming.Catalytic Performance of Pd Catalyst Supported on Zirconium and Yttrium Pillared Montmorillonite[J].Chinese Journal of Inorganic Chemistry,2008,24(3):451-455. |
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| Authors: | QI Ling-Yan CHEN Min SONG Cui ZHOU Ren-Xian and ZHENG Xiao-Ming |
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| Institution: | Institute of catalysis, Xixi Campus of Zhejiang University, Hangzhou 310028,Institute of catalysis, Xixi Campus of Zhejiang University, Hangzhou 310028,Institute of catalysis, Xixi Campus of Zhejiang University, Hangzhou 310028,Institute of catalysis, Xixi Campus of Zhejiang University, Hangzhou 310028 and Institute of catalysis, Xixi Campus of Zhejiang University, Hangzhou 310028 |
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| Abstract: | A montmorillonite support material pillared with zirconium and yttrium (Zr-Y-MMT) was prepared for catalytic oxidation of acetone, toluene and ethyl acetate. The Zr-Y-MMT support and the supported Pd catalyst (Pd/Zr-Y-MMT) were characterized by XRD, TEM and low temperature nitrogen adsorption-desorption techniques. The XRD results indicate that the interlayer spacing of the montmorillonite is increased from 1.27 nm to 1,78 nm after zirconium and yttrium cation pillaring. N2 adsorption-desorption results show that a great increase in BET found that Zr-Y-MMT is more active than Na-MMT for the complete oxidation of acetone, toluene and ethyl acetate, and the temperature for the said catalytic oxidation can be lowered to 320 ℃, 350 ℃ and 290 ℃,respectively. Moreover, after 0.1wt% Pd was supported on Zr-Y-MMT, the catalytic activity was obviously improved for toluene combustion. |
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| Keywords: | pillared montmorillonite catalytic oxidation rare earth |
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