Enhancing sorption kinetics by oriented and single crystalline array-structured ZSM-5 film on monoliths

Junfei Weng, Chunxiang Zhu, Binchao Zhao, Wenxiang Tang, Xingxu Lu, Fangyuan Liu, Mudi Wu, Yong Ding and Pu-Xian Gao ()
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Junfei Weng: University of Connecticut
Chunxiang Zhu: University of Connecticut
Binchao Zhao: University of Connecticut
Wenxiang Tang: University of Connecticut
Xingxu Lu: University of Connecticut
Fangyuan Liu: University of Connecticut
Mudi Wu: University of Connecticut
Yong Ding: Georgia Institute of Technology
Pu-Xian Gao: University of Connecticut

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract To enhance the reaction kinetics without sacrificing activity in porous materials, one potential solution is to utilize the anisotropic distribution of pores and channels besides enriching active centers at the reactive surfaces. Herein, by designing a unique distribution of oriented pores and single crystalline array structures in the presence of abundant acid sites as demonstrated in the ZSM-5 nanorod arrays grown on monoliths, both enhanced dynamics and improved capacity are exhibited simultaneously in propene capture at low temperature within a short duration. Meanwhile, the ZSM-5 array also helps mitigate the long-chain HCs and coking formation due to the enhanced diffusion of reactants in and reaction products out of the array structures. Further integrating the ZSM-5 array with Co3O4 nanoarray enables comprehensive propene removal throughout a wider temperature range. The array structured film design could offer energy-efficient solutions to overcome both sorption and reaction kinetic restrictions in various solid porous materials for various energy and chemical transformation applications.

Date: 2024
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DOI: 10.1038/s41467-024-49672-5

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