Synthesis of Mesoporous Molecular Sieves V-MCM-41 and Their Performances for Styrene Catalytic Oxidation

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Synthesis of Mesoporous Molecular Sieves V-MCM-41 and Their Performances for Styrene Catalytic Oxidation

更新时间：2023-11-28

- Synthesis of Mesoporous Molecular Sieves V-MCM-41 and Their Performances for Styrene Catalytic Oxidation
- Advanced Engineering Sciences Vol. 38, Issue 2, Pages: 60-64(2006)
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- Published：2006，
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许俊强,储伟,黄利宏.V-MCM-41杂原子中孔分子筛的合成及苯乙烯催化氧化[J].工程科学与技术,2006,38(2):60-64.

Synthesis of Mesoporous Molecular Sieves V-MCM-41 and Their Performances for Styrene Catalytic Oxidation. [J]. Advanced Engineering Sciences 38(2):60-64(2006)
许俊强,储伟,黄利宏.V-MCM-41杂原子中孔分子筛的合成及苯乙烯催化氧化[J].工程科学与技术,2006,38(2):60-64. DOI：

Synthesis of Mesoporous Molecular Sieves V-MCM-41 and Their Performances for Styrene Catalytic Oxidation. [J]. Advanced Engineering Sciences 38(2):60-64(2006) DOI：

摘要

中文摘要: 以十六烷基三甲基溴化铵为模板剂、廉价的工业级硅酸钠为硅源，采用水热合成法制备了掺杂V的中孔分子筛V-MCM-41，考察其制备条件对苯乙烯催化氧化反应的影响。实验结果表明最佳制备条件为：采用先加钒源后加硅源，n(Si)∶n(CTAB)∶n(V)=1∶0.2∶0.08的配比，在pH=9.5条件下晶化48 h，制备的V-MCM-41对苯乙烯具有较好的催化活性，BET 比表面积为1003 m2/g，平均孔径为3.944 nm，经800 ℃热处理12 h，其比表面积和孔径保留率分别为81.6%和58.6%，XRD谱图进一步证实此中孔分子筛具有较好的热稳定性。

Abstract

Abstract:By hydrothermal method

using hexadecyltrimethylammonium bromide as template agent

industrial Na2O·(3.3～3.5) SiO2 as cheap silica source

adding V5+ in the synthesis process

the mesoporous molecular sieves containing vanadium were synthesized. The oxidation of styrene was studied as a model reaction and proper parameters were selected: n(Si)∶n(CTAB)∶n(V)=1∶0.2∶ 0.08

pH=9.5

crystallizing time 48 h. Mesoporous molecular sieve V-MCM-41 with surface area (BET) = 1003 m2/g and average pore size of 3.944 nm was synthesized. After thermal-treating at 800 ℃ for 12 h

the surface area (BET) and pore diameter remain 81.6% and 58.6%. The good thermal stability of the mesoporous molecular sieves V-MCM-41were proved by BET data and XRD spectra.

关键词

V-MCM-41杂原子中孔分子筛水热合成催化氧化苯乙烯

Keywords

heteroatom V-MCM-41hydrothermal synthesiscatalytic oxidationstyrene

references

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