Encapsulation of nanoparticles with Xe adsorption sites into MOFs for enhanced Xe/Kr separation

Xenon (Xe) and krypton (Kr) are important gases with significant industrial and medical applications. Metal-organic frameworks (MOFs) are a promising class of sorbent materials for Xe/Kr separation. To enhance the Xe/Kr separation performance of MOFs, we develop a strategy to encapsulate Pt nanoparticles into MOFs to introduce strong Xe adsorption sites. Xe and Kr adsorption and separation studies show that Pt@UiO-66 exhibits 21% higher Xe uptake capacity and a 7% increase in Xe/Kr selectivity compared to UiO-66 due to the introduced Xe adsorption sites, despite the Brunauer-Emmett-Teller (BET) surface area decreasing. These findings have led to an 88% extension of column breakthrough time during Xe/Kr separation under identical conditions. We further demonstrate that this approach can be extended to other MOFs with potential for Xe/Kr separation.

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Publication Details

Journal
RSC Advances
Published
2025-01-01
DOI
https://doi.org/10.1039/d5ra03389f
Citations
1
Primary Topic
Metal-Organic Frameworks: Synthesis and Applications
Type
article
Field-Weighted Citation Impact
0.54

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article

Encapsulation of nanoparticles with Xe adsorption sites into MOFs for enhanced Xe/Kr separation

Xinxin Chu, Chunhui Wu, Youshi Zeng, Hua Xu et al.
1 citations
RSC Advances
Metal-Organic Frameworks: Synthesis and Applications
0.54
article

Encapsulation of nanoparticles with Xe adsorption sites into MOFs for enhanced Xe/Kr separation

Xinxin Chu, Chunhui Wu, Youshi Zeng, Hua Xu, Wei Liu, Xiaoling Wu, Zhou He
article en
1 citations

Abstract

Xenon (Xe) and krypton (Kr) are important gases with significant industrial and medical applications. Metal-organic frameworks (MOFs) are a promising class of sorbent materials for Xe/Kr separation. To enhance the Xe/Kr separation performance of MOFs, we develop a strategy to encapsulate Pt nanoparticles into MOFs to introduce strong Xe adsorption sites. Xe and Kr adsorption and separation studies show that Pt@UiO-66 exhibits 21% higher Xe uptake capacity and a 7% increase in Xe/Kr selectivity compared to UiO-66 due to the introduced Xe adsorption sites, despite the Brunauer-Emmett-Teller (BET) surface area decreasing. These findings have led to an 88% extension of column breakthrough time during Xe/Kr separation under identical conditions. We further demonstrate that this approach can be extended to other MOFs with potential for Xe/Kr separation.

RSC AdvancesVol. 15(34)
Chinese Academy of Sciences (CN), Advanced Energy (United States) (US), Shanghai Institute of Applied Physics (CN)
National Natural Science Foundation of China, Chinese Academy of Sciences, Youth Innovation Promotion Association of the Chinese Academy of Sciences, Natural Science Foundation of Gansu Province, Shanghai Rising-Star Program, Natural Science Foundation for Young Scientists of Shanxi Province, Young Scientists Fund, Youth Innovation Promotion Association
Openalex Percentile: Top 33%
Metal-Organic Frameworks: Synthesis and Applications
0.54
DOIOpen Access PDFOpenAlex
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Encapsulation of nanoparticles with Xe adsorption sites into MOFs for enhanced Xe/Kr separation — Xinxin Chu, Chunhui Wu, et al. · RSC Advances (2025) | TGRS Research Map | TGRS