Intergrown New Zeolite Beta Polymorphs with Interconnected 12-Ring Channels Solved by Combining Electron Crystallography and Single-Crystal X-ray Diffraction

被引：37

作者：

Yu, Zheng-Bao ^{[1
,2
,6
]}

Han, Yu ^{[3
,4
]}

Zhao, Lan ^{[3
,4
]}

Huang, Shiliang ^{[2
]}

Zheng, Qi-Yu ^{[1
]}

Lin, Shuangzheng ^{[5
]}

Cordova, Armando ^{[5
]}

Zou, Xiaodong ^{[2
]}

Sun, Junliang ^{[2
,6
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[2] Stockholm Univ, Dept Mat & Environm Chem, Berzelii Ctr EXSELENT Porous Mat, SE-10691 Stockholm, Sweden

[3] King Abdullah Univ Sci & Technol, Adv Membranes & Porous Mat Ctr, Thuwal 21534, Saudi Arabia

[4] King Abdullah Univ Sci & Technol, Imaging & Characterizat Core Lab, Thuwal 21534, Saudi Arabia

[5] Stockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, Sweden

[6] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2012年 / 24卷 / 19期

基金：

中国国家自然科学基金; 瑞典研究理事会;

关键词：

porous material; zeolite; zeolite beta; intergrowth; polymorph; crystal structure determination; transmission electron microscopy; electron crystallography; ALKYLATION; ACYLATION; CONVERSION; BENZENE; 2-METHOXYNAPHTHALENE; HYDROCARBONS; CATALYSTS; METHANOL; PROGRAM; FAMILY;

D O I：

10.1021/cm301654d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two new polymorphs of zeolite beta, denoted as SU-78A and SU-78B, were synthesized by employing dicyclohexylammonium hydroxides as organic structure-directing agents. The structure was solved by combining transmission electron microscopy and single-crystal X-ray diffraction. SU-78 is an intergrowth of SU-78A and SU-78B and contains interconnected 12-ring channels in three directions. The two polymorphs are built from the same building layer, similar to that for the zeolite beta family. The layer stacking in SU-78, however, is different from those in zeolite beta polymorph A, B, and C, showing new zeolite framework topologies. SU-78 is thermally stable up to 600 degrees C.

引用

页码：3701 / 3706

页数：6

共 47 条

[1] Acylation of 2-methoxynaphthalene and isobutylbenzene over zeolite beta [J].