| 郭锐,$2.MoO3在介孔分子筛MCM—41上分散状况的研究[J].分子催化,2001,(5):379-384 |
| MoO3在介孔分子筛MCM—41上分散状况的研究 |
| Study of Dispersity of MoO3 on the Surface of Mesoporous Molecular Sieve MCM-41 |
| 修订日期：2001-03-12 |
| DOI： |
| 中文关键词: MCM－41 MoO3 单层分散 孔结构 氧化钼 介孔分子筛 表征 负载型催化剂 |
| 英文关键词:MCM\|41,MoO\-3,Monolayer dispersion,Pore structure |
| 基金项目:北京市石油化工科学研究院资助项目，， |
| 郭锐 $2 |
| 北京大学化学与分子工程学院 |
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| 中文摘要: |
| 采用XPS和XRD方法，测定了MoO3在未经改性的MCM－41及用Al2O3和TiO2改性后的MCM－41上的单层分散阈值，发现，MoO3在用Al2O3和TiO2改性后的MCM－41上的单层分散阈值比未经改性的MCM－41上的要提高三分之二。另外，借助MoO3/MCM-41、MoO3/Al2O3-MCM-41、MoO3/TiO2-MCM-41系列样品的比表面积和孔分布测定，研究了MoO3在未经改性的MCM－41及用Al2O3和TiO2改性后的MCM－41上的分散状况。 |
| 英文摘要: |
| XPS and XRD methods were used to determine the monolayer dispersion capacity of MoO\-3 on the surface of unmodified MCM\|41, and Al\-2O\-3, TiO\-2 modified MCM\|41 as well. It is found that the monolayer dispersion capacity of MoO\-3 on the surface of Al\-2O\-3, TiO\-2 modified MCM\|41 is two thirds greater than that on unmodified MCM\|41. Besides, the dispersity of MoO\-3 on the surface of unmodified MCM\|41 and Al\-2O\-3, TiO\-2 modified MCM\|41 was also studied by measuring the BET surface area and pore size distributions of MoO\-3/MCM\|41, and MoO\-3/Al\-2O\-3\|MCM\|41, MoO\-3/TiO\-2\|MCM\|41 samples. |
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