caa a22 4500 606195297 CHVBK 20210128100918.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10934-015-9954-4 doi (NATIONALLICENCE)springer-10.1007/s10934-015-9954-4 Synthesis of hierarchical mesoporous zeolites based on MOR zeolite: application in the automobile tailpipe hydrocarbon trap [Elektronische Daten] [Yuping Li, Yanyue Wang, Xiaohua Liu, Xiaofeng Li, Ruili Pan, Peide Han, Tao Dou] Hierarchical mesoporous zeolites with different levels of micro- and mesoporosity were prepared by dissolution and reassembling processes of MOR zeolite in the presence of mesoscale cationic surfactant cethyltrimethylammonium bromide. The obtained materials were characterized by X-ray diffraction, Scanning electron microscopy, Transmission electron microscopy, Fourier transform infrared, Nitrogen (N2) adsorption/desorption, Temperature programmed desorption of NH3 (NH3-TPD) and Nuclear magnetic resonance techniques. Moreover, these hierarchical zeolites were tested as hydrocarbon traps using toluene as probe molecule and the temperature programmed desorption method. The results showed that the amount of microstructure and mesostructure in the composite was able to be favorably tuned by varying dissolution time at the first stage. The hierarchical materials displayed remarkably high desorption temperature in toluene-TPD, which is an expected performance of hydrocarbon trap in automobile tailpipes. The effect is due to the easier transport of bulky molecules provided by mesopores and increasing the number of available active sites via a fragmentation of the microporous framework. Therefore, the synthesized composite molecular sieve may be a novel catalyst for hydrocarbon trap in automobile tailpipes. Springer Science+Business Media New York, 2015 Mordenite nationallicence MCM-41 nationallicence Mesoporous zeolite nationallicence Hydrocarbon trap nationallicence Cold-start emissions nationallicence Li Yuping College of Materials Science and Engineering, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut Wang Yanyue College of Materials Science and Engineering, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut Liu Xiaohua College of Materials Science and Engineering, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut Li Xiaofeng Research Institute of Special Chemicals, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut Pan Ruili Research Institute of Special Chemicals, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut Han Peide College of Materials Science and Engineering, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut Dou Tao Research Institute of Special Chemicals, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/3(2015-06-01), 807-815 1380-2224 22:3<807 2015 22 10934 https://doi.org/10.1007/s10934-015-9954-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-9954-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Yuping College of Materials Science and Engineering, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Wang Yanyue College of Materials Science and Engineering, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Liu Xiaohua College of Materials Science and Engineering, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Li Xiaofeng Research Institute of Special Chemicals, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Pan Ruili Research Institute of Special Chemicals, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Han Peide College of Materials Science and Engineering, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut NATIONALLICENCE 700 1- Dou Tao Research Institute of Special Chemicals, Taiyuan University of Technology, 79# West Yingze Street, 030024, Taiyuan, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/3(2015-06-01), 807-815 1380-2224 22:3<807 2015 22 10934