键阻断原理构建中孔A型沸石

引用本文: 王鹏, 薛招腾, 马静红, 亢玉红, 李瑞丰. 键阻断原理构建中孔A型沸石[J]. 无机化学学报, 2013, 29(9): 1777-1786. doi: 10.3969/j.issn.1001-4861.2013.00.269 shu

Citation: WANG Peng, XUE Zhao-Teng, MA Jing-Hong, KANG Yu-Hong, LI Rui-Feng. Zeolite LTA with Intracrystal Mesopores Constructed by Bond-Blocking Principle[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(9): 1777-1786. doi: 10.3969/j.issn.1001-4861.2013.00.269 shu

键阻断原理构建中孔A型沸石

基金项目:
国家自然科学基金(No.50872087)资助项目。 (No.50872087)

摘要: 采用不同类型的有机硅烷化SiO₂作为基本合成单元,制备了具有晶内中孔的A型沸石。考察了反应碱度、Si/Al比、晶化时间等合成条件对产品的影响。结果表明,苯胺基丙基三甲氧基硅烷是合成中孔A型沸石的最佳硅烷化试剂;硅烷化试剂的应用,使中孔沸石晶化过程可以通过“键阻断原理”有效控制;沸石的中孔尺寸可以通过不同类型的有机硅烷化试剂进行调控; 一定范围内,其外比表面积、中孔体积随SiO₂表面硅烷化度的增加而增加。通过沸石晶化过程中的“键阻断”,可以制备具有晶内中孔的A型沸石。

关键词:

催化;键阻断;A型沸石;晶内中孔;有机硅烷化

English

Zeolite LTA with Intracrystal Mesopores Constructed by Bond-Blocking Principle

1.
Key Laboratory of Coal Science and Technology, Ministry of Education, School of Chemistry and Chemical Engineering, Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China
Received Date: 22 March 2013
Fund Project:
国家自然科学基金(No.50872087)资助项目。

Abstract: Zeolite LTA with intracrystal mesopores was built using four different organic functionized SiO₂ as configuration units. The effects of the synthesis conditions, including that of the alkalinity, the Si/Al molar ratio of synthesis mixture and crystallization time, on the growth process of the mesostructured zeolite crystals were investigated. Phenylaminopropyl-trimethoxysilane is the best candidate to create intracrystal mesopores in zeolite LTA crystals. The growth process of the mesostructured zeolite crystals was studied. Mesoporous size of the zeolite LTA can be modulated by selecting different kinds of organosilanes. Within a certain range, the external surface area and the mesoporous volume increase with the increasing organic function degree of the silica source. The results confirm that the synthesis method by the bond-blocking principle is an effective route to prepare zeolite LTA with tunable intracrystalline mesopores.

Key words:

catalysis;bond-blocking principle;zeolite LTA;intracrystalline mesopores;organosilane;functionized SiO₂

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

键阻断原理构建中孔A型沸石

English

Zeolite LTA with Intracrystal Mesopores Constructed by Bond-Blocking Principle

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键阻断原理构建中孔A型沸石

English

Zeolite LTA with Intracrystal Mesopores Constructed by Bond-Blocking Principle

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

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