Volume 25, Issue 9 p. 2184-2188
Communication

Synthesis and Structure Determination of SCM-15: A 3D Large Pore Zeolite with Interconnected Straight 12×12×10-Ring Channels

Dr. Yi Luo

Dr. Yi Luo

State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, 1658 Pudong Beilu, Shanghai, 201208 China

Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden

College of Chemistry & Molecular Engineering, Peking University, No.5 Yiheyuan Road, Beijing, 100871 China

Search for more papers by this author
Dr. Stef Smeets

Dr. Stef Smeets

Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden

Search for more papers by this author
Dr. Zhendong Wang

Corresponding Author

Dr. Zhendong Wang

State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, 1658 Pudong Beilu, Shanghai, 201208 China

Search for more papers by this author
Prof. Junliang Sun

Corresponding Author

Prof. Junliang Sun

Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden

College of Chemistry & Molecular Engineering, Peking University, No.5 Yiheyuan Road, Beijing, 100871 China

Search for more papers by this author
Prof. Weimin Yang

Corresponding Author

Prof. Weimin Yang

State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, 1658 Pudong Beilu, Shanghai, 201208 China

Search for more papers by this author
First published: 06 December 2018
Citations: 24

Graphical Abstract

The first zeolite containing a 3D channel system with interconnected 12×12×10-ring channels, named as SCM-15 (Sinopec Composite Material No. 15), has been synthesized using a commercially available organic structure-directing agent. The good thermal stability and the unique channel system may give SCM-15 great potential for catalytic and adsorptive applications.

Abstract

A new germanosilicate zeolite named SCM-15 (Sinopec Composite Material No. 15), the first zeolite containing a 3-dimensional (3D) channel system with interconnected 12-, 12-, and 10-ring channels (pore sizes: 6.1×7.2, 6.1×7.4, and 5.2×5.9 Å), has been synthesized using neutral 4-pyrrolidinopyridine as organic structure-directing agents (OSDAs). Its structure has been determined by combining single-crystal electron diffraction (SCED) and synchrotron powder X-ray diffraction (SPXD) data. The unique open framework structure of SCM-15 is related to that of FOS-5 (BEC), ITQ-7 (ISV), PKU-16 (POS), ITQ-26 (IWS), ITQ-21, Beta polymorph B, and SU-78B, since all these framework structures can be constructed from similar chains which are connected through shared 4-ring or double 4-ring (d4r) units. Based on this relation, six topologically reasonable 3D large or extra-large pore hypothetical zeolites are predicted.