| 沸石的骨架结构与酸强度 |
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| 引用本文： | 唐颐,华伟明,高滋.沸石的骨架结构与酸强度[J].物理化学学报,1994,10(12):1116-1120. |
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| 作者姓名： | 唐颐 华伟明 高滋 |
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| 作者单位： | Department of Chemistry,Fudan University,Shanghai 200433 |
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| 基金项目： | 国家基础研究重大项目，国家自然科学基金 |
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| 摘 要： | 沸石分子筛是应用广泛的固体酸催化剂，其催化性能与沸石质子酸的强度和密度密切有关，对沸石酸性的研究是沸石催化领域内一个永恒的课题，国内外许多学者对此进行了长期工作，然而至今仍有许多问题认识不一致，关于沸石骨架结构与酸性的关系也是其中争议较多的问题之一．Sohn等N曾经根据脱铝Y沸石和ZSM－5沸石上正己烷反应结果，笼统地认为Si／Al比超过一定值以后，不同骨架结构的沸石的酸强度相同，催化活性只与酸位密度有关．Barthomeuf2]则从沸石的结构参数出发，提出了一种较为精确的说法，即沸石的酸强度与骨架中铝的拓扑密度有…
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| 关 键 词： | 新戊烷反应 沸石酸性 酸强度 |
| 收稿时间： | 1993-09-20 |
| 修稿时间： | 1994-01-07 |
Acid Strength and the Framework Structure of Zeolite |
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| Tang Yi, Hua Weiming ,Gao Zi.Acid Strength and the Framework Structure of Zeolite[J].Acta Physico-Chimica Sinica,1994,10(12):1116-1120. |
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| Authors: | Tang Yi Hua Weiming Gao Zi |
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| Institution: | Department of Chemistry,Fudan University,Shanghai 200433 |
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| Abstract: | The decomposition of neopentane has been used as a probe reaction to test the acid strength of zeolites with different composition and framework structures. For a series of dealuminated HM zeolites, the acid strength increases first and then decreases as the Si/Al ratio of the zeolites is increased. The strongest acid strength appears at Si/Al ratio 8.1. For zeolites with different framework structure, the acid strength is in the order of HM>Hβ >HSY>HZSM-5≈HZSM-12. Changes in acid strength are discussed in relation to structural properties of the zeolites. |
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| Keywords: | Neopentane reaction Acidity of zeolite Acid strength |
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