| 高钒掺杂量MCM-41合成及表征(英文) | |
| Synthesis and Characterization of V-MCM41 with High Vanadium Content | |
| 摘要: 采用溶胶-凝胶法，在氨性条件下合成出高钒掺杂量介孔MCM-41。以XRD，氮气吸附/脱附，透射电镜，ICP和拉曼光谱等技术对材料的结构进行了表征。结果表明当钒硅物质的量的比达到0.14时材料仍保持规整介孔结构(尽管当钒/硅物质的量的比超过0.11时开始有V2O5晶体出现)。所合成材料室温下在苯的过氧化氢直接羟基化反应中表现出良好的催化性能。 | |
| 关键词: V-MCM-41 高含量 合成 多相催化 羟基化 氨性条件 | |
| 基金项目: | |
| Abstract: V-MCM-41s with high content of vanadium have been synthesized using sol-gel method under ammonium condition and characterized by using XRD, N2 adsorption isotherms, HRTEM, ICP and Laser Raman Spectroscopy(LRS) techniques. Regular mesopore structure could be maintained up to the V/Si molar ratio of 0.14, although certain amount of V2O5 crystals becomes to disperse on the wall of MCM-41 when nV/nSi exceeds 0.11. These materials were effective catalysts in the hydroxylation of benzene with H2O2 under room temperature. | |
| Keywords: V-MCM-41 high content synthesis heterogeneous catalysis hydroxylation ammonia condition | |
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| 孔 岩,张 瑞,徐鑫杰,王子龙,王 军.高钒掺杂量MCM-41合成及表征(英文)[J].无机化学学报,2008,24(7):1124-1127. | |
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