张小明,索继栓.中孔分子筛MSU及其杂原子衍生物的合成、表征和催化性能研究[J].分子催化,2000,(2):102-106 |
中孔分子筛MSU及其杂原子衍生物的合成、表征和催化性能研究 |
Synthesis,Characterization and Catalytic Performance of Mesoporous Silica Molecular Sieves and Its Ti,Zr,and V Derivatives |
修订日期:1999-10-11 |
DOI: |
中文关键词: MSU分子筛 催化性能 杂原子衍生物 |
英文关键词:Polyoxoethylene (10) stearyl ether,Mesoporous MSU molecular sieves,Synthesis and characterization,Styrene,Benzaldehyde |
基金项目: |
张小明 索继栓 |
中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室!兰州730000(张小明,张兆荣,索继栓) ,中国科学院兰州化学物理研究所羰基合成与(李树本)
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中文摘要: |
以十八烷基聚氧乙烯基醚为模板剂,在SiO2的等电点(PH值为2)下,成功地合成了 具有MSU结构的中孔SiO2分子筛及其Ti、Zr和V取代衍生物。用XRD、X2吸 附/脱附、DRUV-Vis和元素分析等手段,对它们的孔道及骨架结构进行了全面表征。催化性能评价结果表明,在乙酸介质中,Ti、Zr和V等过渡金属原子取代的分子筛样品可以催化苯乙烯氧化为苯甲醛的反应,且活笥和选择性较高。 |
英文摘要: |
Mesoporous MSU silica molecular sieves and its Ti, Zr, and V derivatives have been prepared under the iso electric point of silica (pH=2), using polyoxoethylene (10) stearyl ether as a structure directing agent. Their structures were characterized and confirmed by XRD, N 2 adsorption/desorption, DR UV Vis, and elemental analysis. Catalytic performances evaluation showed that the Ti, Zr, and V containing mesoporous MSU molecular sieves were active in catalyzing styrene oxidation with aqueous hydrogen peroxide in the acetic acid medium. |
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