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One‐step Ethylene Purification from an Acetylene/Ethylene/Ethane Ternary Mixture by Cyclopentadiene Cobalt‐Functionalized Metal–Organic Frameworks
Author(s) -
Wang Yutong,
Hao Chunlian,
Fan Weidong,
Fu Mingyue,
Wang Xiaokang,
Wang Zhikun,
Zhu Lei,
Li Yue,
Lu Xiaoqing,
Dai Fangna,
Kang Zixi,
Wang Rongming,
Guo Wenyue,
Hu Songqing,
Sun Daofeng
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202100782
Subject(s) - acetylene , ethylene , ternary operation , cyclopentadiene , cobalt , metal organic framework , chemistry , density functional theory , molecule , adsorption , sorption , chemical engineering , materials science , inorganic chemistry , organic chemistry , computational chemistry , catalysis , computer science , engineering , programming language
The separation of ethylene (C 2 H 4 ) from a mixture of ethane (C 2 H 6 ), ethylene (C 2 H 4 ), and acetylene (C 2 H 2 ) at normal temperature and pressure is a significant challenge. The sieving effect of pores is powerless due to the similar molecular size and kinetic diameter of these molecules. We report a new modification method based on a stable ftw topological Zr‐MOF platform ( MOF‐525 ). Introduction of a cyclopentadiene cobalt functional group led to new ftw‐type MOFs materials ( UPC‐612 and UPC‐613 ), which increase the host‐guest interaction and achieve efficient ethylene purification from the mixture of hydrocarbon gases. The high performance of UPC‐612 and UPC‐613 for C 2 H 2 /C 2 H 4 /C 2 H 6 separation has been verified by gas sorption isotherms, density functional theory (DFT), and experimentally determined breakthrough curves. This work provides a one‐step separation of the ternary gas mixture and can further serve as a blueprint for the design and construction of function‐oriented porous structures for such applications.