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
学科主题: 物理化学
题名: Phase-Transformation Synthesis of SAPO-34 and a Novel SAPO Molecular Sieve with RHO Framework Type from a SAPO-5 Precursor
作者: Tian, Peng1;  Su, Xiong1, 2;  Wang, Yingxia3;  Xia, Qinghua4;  Zhang, Ying1;  Fan, Dong1, 2;  Meng, Shuanghe1;  Liu, Zhongmin1
通讯作者: 刘中民
关键词: DNL-6 ;  phase selectivity ;  phase transformation ;  RHO ;  SAPO-34
刊名: CHEMISTRY OF MATERIALS
发表日期: 2011-03-22
DOI: 10.1021/cm103512m
卷: 23, 期:6, 页:1406-1413
收录类别: SCI
文章类型: Article
部门归属: DNL12
项目归属: DNL12
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
摘要: Phase-Transformation Synthesis of SAPO-34 and a Novel SAPO Molecular Sieve with RHO Framework Type from a SAPO-5 Precursor
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: SAPO-34 and a novel SAPO molecular sieve with the RHO framework (designated as DNL-6) were synthesized using SAPO-5 (the denser phase) as the precursor and diethylamine (DEA) as the template. The entire transition process had been investigated by XRD, SEM, XRF, and NMR spectroscopy, which clearly revealed a solution-mediated transport mechanism attributed to the transformation from SAPO-5 to SAPO-34 via oscillating phases [SAPO-5 (FD = 16.9 T/nm(3)) double right arrow SAPO-34 (15.1) + DNL-6 (14.5) -> DNL-6 -> SAPO-34]. The initially formed SAPO-34 was different from the final one in this transformation due to very different percentages of organic inclusions, indicating that the host-guest interactions played important roles for the phase selectivity during the synthesis. DNL-6, obtained as an intermediate of the transformation process, possessed good thermal stability, large microporous surface area (724 m(2)/g), and high micropore volume (0.36 cm(3)/g). Rietveld refinement showed that the framework of calcined DNL-6 had typical features of the RHO structure with a high symmetry [I23, a = 15.08429(9) angstrom], composed of a body-centered cubic arrangement of alpha cages linked via double 8-rings.
关键词[WOS]: AL-27 NMR INVESTIGATIONS ;  HYDROTHERMAL SYNTHESIS ;  ZEOLITE STRUCTURES ;  AQUEOUS-SOLUTIONS ;  CONVERSION ;  GEL ;  HYDROXYSODALITE ;  SELECTIVITY ;  PHOSPHORUS ;  MECHANISM
语种: 英语
WOS记录号: WOS:000288291400010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115839
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: Download All
File Name/ File Size Content Type Version Access License
2011bWTpdV9C8J.pdf(2922KB)----开放获取--View Download

作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
4.Hubei Univ, Minist Educ, Key Lab Synth & Applicat Organ Funct Mol, Sch Chem & Chem Engn, Wuhan 430062, Peoples R China

Recommended Citation:
Tian, Peng,Su, Xiong,Wang, Yingxia,et al. Phase-Transformation Synthesis of SAPO-34 and a Novel SAPO Molecular Sieve with RHO Framework Type from a SAPO-5 Precursor[J]. CHEMISTRY OF MATERIALS,2011,23(6):1406-1413.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Tian, Peng]'s Articles
 [Su, Xiong]'s Articles
 [Wang, Yingxia]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Tian, Peng]‘s Articles
 [Su, Xiong]‘s Articles
 [Wang, Yingxia]‘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 
文件名: 2011bWTpdV9C8J.pdf
格式: Adobe PDF
此文件暂不支持浏览
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