Revealing the CO 2 adsorption blocking mechanism in flexible low-silica small-pore zeolites via three-dimensional electron diffraction

Low-silica small-pore zeolites are essential for CO selective adsorption; however, some Na-form flexible types exhibit negligible performance. Advanced three-dimensional electron diffraction elucidated the blocking mechanism: Na ions in elliptical 8-rings hinder CO diffusion. Structural insights gui...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2025-01
Main Authors: Guo, Jian, Nie, Chenyang, Li, Shitai, Yan, Nana, Guo, Peng, Liu, Zhongmin
Format: Article
Language:English
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Summary:Low-silica small-pore zeolites are essential for CO selective adsorption; however, some Na-form flexible types exhibit negligible performance. Advanced three-dimensional electron diffraction elucidated the blocking mechanism: Na ions in elliptical 8-rings hinder CO diffusion. Structural insights guided the design of K-form types with wider 8-rings, achieving enhanced CO adsorption.
ISSN:1359-7345
1364-548X
DOI:10.1039/d4cc06791f