中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Vapor-phase silylation of MCM-22 zeolite with various SiO2/Al2O3 molar ratios
作者: Gao Ningning1, 2;  Xie Sujuan1;  Liu Shenglin1;  Liu Kefeng1, 2;  Li Xiujie1;  Xu Longya1
关键词: MWW structure ;  MCM-22 zeolite ;  silylation ;  interlayer expansion ;  density functional theory
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2013-03-01
DOI: 10.3724/SP.J.1088.2013.20932
卷: 34, 期:3, 页:612-619
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: MCM-22 precursor with various SiO2/Al2O3 molar ratios was treated by vapor-phase silylation. MCM-22 zeolite and its products of vapor-phase silylation were characterized by X-ray diffraction, solid state nuclear magnetic resonance, N-2 adsorption-desorption, and toluene adsorption techniques. The results showed that Si(OH)(2) pillaring structure was formed in the interlayer of MCM-22 with SiO2/Al2O3 molar ratios of 50-100 without extraction of framework aluminum through vapor-phase silylation, resulting in the expansion of interlayer distance and the increase of micropore volume. The N-2 adsorption-desorption isotherms of MCM-22 zeolite before and after silylation were analyzed by the density functional theory, and the specific surface area and pore volume of 10 member ring (10 MR) rnicropores and those of the supercage system were successfully obtained. As a result of vapor-phase silylation, the specific surface area and pore volume of the supercage system increased, while those of 10 MR micropores decreased. The equilibrium adsorption amount of toluene over MCM-22 zeolite with various SiO2/Al2O3 molar ratios was enhanced after vapor-phase silylation.
关键词[WOS]: PILLARED MOLECULAR-SIEVE ;  SI-29 MAS-NMR ;  SURFACE-AREA ;  CATALYSTS ;  ALKYLATION ;  DISPROPORTIONATION ;  MICROPOROSITY ;  PRECURSORS ;  BENZENE ;  TOLUENE
语种: 英语
WOS记录号: WOS:000317873600016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137894
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Gao Ningning,Xie Sujuan,Liu Shenglin,et al. Vapor-phase silylation of MCM-22 zeolite with various SiO2/Al2O3 molar ratios[J]. CHINESE JOURNAL OF CATALYSIS,2013,34(3):612-619.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Gao Ningning]'s Articles
 [Xie Sujuan]'s Articles
 [Liu Shenglin]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Gao Ningning]‘s Articles
 [Xie Sujuan]‘s Articles
 [Liu Shenglin]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace