| 高表面积MCM-41的合成与性能 |
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| 引用本文： | 宋春敏,阎子峰,Max Lu. 高表面积MCM-41的合成与性能[J]. 物理化学学报, 2002, 18(3): 279-283. DOI: 10.3866/PKU.WHXB20020319 |
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| 作者姓名： | 宋春敏 阎子峰 Max Lu |
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| 作者单位： | State Key Laboratory for Heavy Oil Processing, University of Petroleum,Dongying 257061;NanoMac Ceter, Department of Chemical Engineering, The University of Queensland, Brisbane 4072 Australia |
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| 基金项目： | 澳大利亚昆士兰大学纳米材料研究中心合作项目~~ |
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| 摘 要： | 通过易于控制的手段，合成出了超高表面积的MCM 41分子筛，并采用XRD、N2吸附脱附、热重 差热分析、SEM等测试手段对合成样品进行分析表征，主要考察了晶化时间对分子筛表面积的影响.其XRD结果表明,合成的固体产物具有六方排列的孔道结构，结晶度高.氮吸附脱附实验表明，产物具有单一的孔径分布，其BET表面积可达1300 m2•g－1左右，合成样品的平均孔径约3.2 nm，适宜的晶化时间是50～100 h.热重分析表明，样品热稳定性好，吡啶升温脱附曲线表明合成的样品具有弱酸性.
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| 关 键 词： | MCM-41 介孔分子筛 合成 结构表征 |
| 收稿时间： | 2001-07-30 |
| 修稿时间： | 2001-07-30 |
Synthesisand Characterizationof Super-surface MCM-41 Zeolites |
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| Max Lu. Synthesisand Characterizationof Super-surface MCM-41 Zeolites[J]. Acta Physico-Chimica Sinica, 2002, 18(3): 279-283. DOI: 10.3866/PKU.WHXB20020319 |
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| Authors: | Max Lu |
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| Affiliation: | State Key Laboratory for Heavy Oil Processing, University of Petroleum,Dongying 257061;NanoMac Ceter, Department of Chemical Engineering, The University of Queensland, Brisbane 4072 Australia |
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| Abstract: | The mesoporous MCM 41 molecular sieves with super high surface areas were hydrothermally synthesized by means of a novel surfactant. XRD, nitrogen adsorption,SEM and pyridine TG DTA were used to characterize the crystallinity,surface area and meso porosity and acidity of the synthesized samples. The XRD results showed that MCM 41 with high crystallinity. N2 adsorption indicated that BET surface area is 1300 m2•g－1. Pyridine TPD spectra of the samples showed that the acidity of MCM 41 is a weak acid. The samples have high thermal stability. The optimum crystallization time is 50～100 h. |
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| Keywords: | MCM 41 Mesopore zeolite Synthesis Characterization |
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