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241205s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202409474
|2 doi
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|a pubmed24n1621.xml
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|a (DE-627)NLM381147207
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|a (NLM)39628434
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Chen, Fuqiang
|e verfasserin
|4 aut
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|a The First Kr-Selective Carbon Molecular Sieve for Inverse Adsorption of Krypton Over Xenon at Ambient Temperature
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 04.12.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a The efficient adsorption-based separation of krypton (Kr) and xenon (Xe) is of paramount importance but is challenged by their similar physicochemical properties. While carbon adsorbents are theoretically promising for Kr/Xe sieving, practical success has remained elusive. Here, a series of ultramicroporous carbon molecular sieves synthesized from sucrose-derived hydrochar is reported. The study employs careful characterization and controlled thermal pyrolysis to tailor ultramicropore formation and elucidate the evolution of the carbon framework. The leading material, C-Suc-750, has an ideal pore size of ≈4.0 Å. In particular, C-Suc-750 has achieved a remarkable Kr/Xe uptake ratio of 39.3 at ambient conditions, setting a new benchmark for selective Kr adsorption and molecular sieving of Kr/Xe. Breakthrough experiments further confirm the superior molecular sieving performance of C-Suc-750, highlighting its potential for Kr recovery in nuclear waste treatment. Moreover, molecular dynamics (MD) simulations demonstrate the critical role of narrow slit-pore of the carbon molecular sieve in molecular sieving separation of Kr/Xe, providing insights into the mechanism driving this selectivity
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|a Journal Article
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|a adsorption separation
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|a carbon molecular sieve
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|a inverse adsorption
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|a krypton
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|a xenon
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|a Zheng, Fang
|e verfasserin
|4 aut
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|a Huang, Xinlei
|e verfasserin
|4 aut
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|a Chu, Zhe
|e verfasserin
|4 aut
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1 |
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|a Sun, Haoran
|e verfasserin
|4 aut
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|a Yang, Liu
|e verfasserin
|4 aut
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1 |
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|a Yang, Qiwei
|e verfasserin
|4 aut
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|a Zhang, Zhiguo
|e verfasserin
|4 aut
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1 |
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|a Ren, Qilong
|e verfasserin
|4 aut
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| 700 |
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|a Bao, Zongbi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2024) vom: 04. Dez., Seite e2409474
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g year:2024
|g day:04
|g month:12
|g pages:e2409474
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|u http://dx.doi.org/10.1002/adma.202409474
|3 Volltext
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