Journal
APPLIED CATALYSIS A-GENERAL
Volume 665, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2023.119356
Keywords
ZSM-5 zeolite; Synthesis; Cross-linking state of silicon species; The distribution of framework Al atoms; Methanol-to-olefins (MTO) reaction
Categories
Ask authors/readers for more resources
Controlling the distribution of aluminum atoms in the ZSM-5 zeolite framework can effectively modulate the product selectivity for methanol-to-olefin (MTO) reaction.
Controllable regulation of Al atoms distribution in ZSM-5 zeolite framework can effectively modulate product selectivity for MTO reaction. Here, the Al atoms distribution of ZSM-5 zeolite can be adjusted by controlling the cross-linking state of silicon species. Detailed explorations show that, the surface of ZSM-5 zeolite is rich in silicon when low cross-linking state silicon species is silicon source, while the surface of ZSM-5 zeolite is rich in aluminum when high cross-linking state silicon species is silicon source. When the cross-linking state of silicon species presents a gripper-like states, Al atoms of ZSM-5 zeolites are homogeneously distributed, and thus, Al atoms tends to be distributed in straight or sinusoidal channels, resulting in high olefin selectivity and low double cycle index in the catalytic MTO reaction process. This work would be beneficial to the design of ZSM-5 zeolite catalyst with desirable acid site distribution for specific reactions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available