Stable Fluorinated Hybrid Microporous Material for the Efficient Separation of C2-C3 Alkyne/Alkene Mixtures

Shuixiang Zou; Zhengyi Di; Hao Li; Yuanzheng Liu; Zhenyu Ji; Hengbo Li; Cheng Chen; Mingyan Wu; Maochun Hong

doi:10.1021/acs.inorgchem.2c00654

Stable Fluorinated Hybrid Microporous Material for the Efficient Separation of C₂-C₃ Alkyne/Alkene Mixtures

Inorg Chem. 2022 May 16;61(19):7530-7536. doi: 10.1021/acs.inorgchem.2c00654. Epub 2022 May 5.

Authors

Shuixiang Zou^{1

2}, Zhengyi Di¹, Hao Li¹, Yuanzheng Liu¹, Zhenyu Ji¹, Hengbo Li¹, Cheng Chen^{1

3}, Mingyan Wu¹, Maochun Hong¹

Affiliations

¹ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
² College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, China.
³ Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China.

PMID: 35511047
DOI: 10.1021/acs.inorgchem.2c00654

Abstract

The separation of C₂-C₃ alkyne/alkene mixtures is important but difficult work thanks to their similar physical and chemical properties. Crystalline porous materials with high alkyne adsorption and prominent separation selectivity of alkyne/alkene mixtures have been extensively investigated because of their energy-saving merits. Herein, we report a fluorinated hybrid microporous material (FJI-W1) that exhibits unexpected water and thermal stability. Gas sorption isotherms show that FJI-W1 has ultrahigh C₂H₂ and C₃H₄ adsorption capacities of 150 and 159 cm³/g, respectively. Furthermore, dynamic breakthrough experiments indicate that the intervals of breakthrough time between the two gases for 1:99 (v/v) C₂H₂/C₂H₄ and 1:99 (v/v) C₃H₄/C₃H₆ can be up to 230 and 600 min/g, respectively. Additionally, the tests with different flow rates and three-cycle breakthrough tests demonstrate that FJI-W1 has a remarkable C₂-C₃ alkyne/alkene separation performance.