title: π-π interaction of aromatic groups in amphiphilic molecules directing for single-crystalline mesostructured zeolite nanosheets.
abstract: One of the challenges in material science has been to prepare macro- or mesoporous zeolite. Although examples of their synthesis exist, there is a need for a facile yet versatile approach to such hierarchical structures. Here we report a concept for designing a single quaternary ammonium head amphiphilic template with strong ordered self-assembling ability through π-π stacking in hydrophobic side, which stabilizes the mesostructure to form single-crystalline mesostructured zeolite nanosheets. The concept is demonstrated for the formation of a new type of MFI (zeolite framework code by International Zeolite Association) nanosheets joined with a 90° rotational boundary, which results in a mesoporous zeolite with highly specific surface area even after calcination. Low binding energies for this self-assembling system are supported by a theoretical analysis. A geometrical matching between the arrangement of aromatic groups and the zeolitic framework is speculated for the formation of single-crystalline MFI nanosheets.
authors: 1] School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China [2].
authors: Dongdong
authors: D
authors: Xu
authors: 1] Department of Materials and Environmental Chemistry, Stockholm University, S-10691 Stockholm, Sweden [2].
authors: Yanhang
authors: Y
authors: Ma
authors: 1] School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China [2].
authors: Zhifeng
authors: Z
authors: Jing
authors: School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors: Lu
authors: L
authors: Han
authors: School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors: Bhupendra
authors: B
authors: Singh
authors: School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors: Ji
authors: J
authors: Feng
authors: School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors: Xuefeng
authors: X
authors: Shen
authors: School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors: Fenglei
authors: F
authors: Cao
authors: Department of Materials and Environmental Chemistry, Stockholm University, S-10691 Stockholm, Sweden.
authors: Peter
authors: P
authors: Oleynikov
authors: School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors: Huai
authors: H
authors: Sun
authors: 1] Graduate School of EEWS, BK21Plus, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea [2] Department of Materials & Environmental Chemistry, Berzelii Centre EXSELENT on Porous Materials, Stockholm University, S-10691 Stockholm, Sweden.
authors: Osamu
authors: O
authors: Terasaki
authors: School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
authors: Shunai
authors: S
authors: Che