Topology and porosity control on zirconium-fumarate frameworks boosting xenon/krypton separation

被引：7

作者：

Chen, Rundao ^{[1
]}

Sheng, Bin ^{[1
]}

Zheng, Fang ^{[1
,2
]}

Li, Jiaqi ^{[1
]}

Sun, Haoran ^{[1
]}

Zhou, Fangru ^{[1
]}

Chen, Lihang ^{[1
,2
]}

Zhang, Zhiguo ^{[1
,2
]}

Yang, Qiwei ^{[1
,2
]}

Ren, Qilong ^{[1
,2
]}

Bao, Zongbi ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Coll Chem & Biol Engn, Key Lab Biomass Chem Engn, Minist Educ, 866 Yuhangtang Rd, Hangzhou 310058, Peoples R China

[2] Zhejiang Univ, Inst Zhejiang Univ Quzhou, Quzhou, Peoples R China

来源：

AICHE JOURNAL | 2023年 / 69卷 / 10期

基金：

中国国家自然科学基金;

关键词：

adsorptive separation; krypton; metal-organic frameworks; topology; xenon; METAL-ORGANIC FRAMEWORKS; XENON ADSORPTION; COMMENSURATE ADSORPTION; FORCE-FIELD; CAPTURE; GAS;

D O I：

10.1002/aic.18169

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The designability and ultrahigh stability of zirconium-organic frameworks make them attractive adsorbents for noble gases xenon (Xe) and krypton (Kr), but their Xe/Kr separation performance needs to be further enhanced. In this study, we rationally control the topology and porosity of zirconium-fumarate frameworks by simply changing the synthesis conditions, and successfully construct an adsorbent (named as MIP-203-F) with one-dimensional pore instead of the original cage-like fcu metal-organic framework MOF-801. The Xe/Kr separation performance of MIP-203-F is thoroughly evaluated by isotherm measurements and breakthrough experiments, while the adsorption mechanism is elucidated in detail by Monte Carlo and density functional theory calculations. Due to the uniform pore with suitable size and abundant polarization groups, MIP-203-F can differentially polarize and recognize atomic Xe/Kr gases, and establishes a new record among zirconium-organic frameworks for the capture and separation of Xe/Kr.

引用

页数：11

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