Ordered, highly zeolitized mesoporous aluminosilicates produced by a gradient acidic assembly growth strategy in a mixed template system
Author | Azhati, Arepati |
Author | Xie, Songhai |
Author | Wang, Weiwen |
Author | Elzatahry, Ahmed A. |
Author | Yan, Yueer |
Author | Zhou, Jian |
Author | Al-Dhayan, Dhaifallah |
Author | Zhang, Yahong |
Author | Tang, Yi |
Author | Zhao, Dongyuan |
Available date | 2021-09-01T10:02:44Z |
Publication Date | 2016 |
Publication Name | Chemistry of Materials |
Resource | Scopus |
Abstract | Tremendous efforts have been made in recent years to synthesize ordered mesoporous zeolite materials, because of the accelerating demands of industrial bulky molecule conversion. Here, we develop a novel gradient acidic assembly growth strategy to prepare ordered highly zeolitized mesoporous aluminosilicate (SBA-16) materials in a mixed template system. This gradient acidic assembly growth strategy can achieve the high zeolitization of mesoporous aluminosilicate walls without any ordering loss of the mesostructure. The resultant highly zeolitized mesoporous materials, composed of the intergrown zeolite subcrystal particles (2-3 nm), exhibit high surface area (?834 m2 g-1) and pore volume (?0.64 cm3 g-1), typical channel of MFI framework (0.52 nm), and uniform mesopore (?5.75 nm), respectively. Moreover, these highly ordered crystallized mesostructures endow them with high exposed active sites and excellent hydrothermal stability, which consequently make their catalytic activities in bulky molecule transformations at least 10 times higher than conventional zeolites or amorphous mesoporous materials. Without the use of any special surfactants, this general synthetic process provides a brand new view for the synthesis and application of highly crystalline ordered mesoporous materials. 2016 American Chemical Society. |
Sponsor | This work was supported by the 973 Program (No. 2013CB934101), NSFC (Nos. U1463206, 21473037, 21433002, and 21573046), and National Plan for Science, Technology and Innovation (MAARIFAH), King Abdulaziz City for Science and Technology, Kingdom of Saudi Arabia (No. 14-PET827-02), and Sinopec (No. X514005). |
Language | en |
Publisher | American Chemical Society |
Subject | Aluminosilicates Amorphous materials Catalyst activity Molecules Planning Strategic planning Synthesis (chemical) Zeolites Conventional zeolites Growth strategy High surface area Hydrothermal stabilities Mesoporous aluminosilicate Ordered mesoporous Ordered mesoporous materials Synthetic process Mesoporous materials |
Type | Article |
Pagination | 4859-4866 |
Issue Number | 13 |
Volume Number | 28 |
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