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Zhang W, Zou S, Zhou Y, Ji Z, Li H, Zhen G, Chen C, Song D, Wu M. Flexible Microporous Framework for One-Step Acquisition of Ethylene from Ternary C 2 Hydrocarbons. Inorg Chem 2024; 63:3145-3151. [PMID: 38277266 DOI: 10.1021/acs.inorgchem.3c04267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
One-step purification of ethylene (C2H4) from ternary C2 hydrocarbon mixtures is a crucial task and an enduring challenge because of their similar molecular size and physical properties. Owing to their intriguing structural dynamics, flexible MOFs have attracted more attention for gas adsorption and separation. Herein, we report a flexible MOF FJI-W-66 that exhibits rarely seen "breathing" behaviors for C2 hydrocarbons. Upon activation, the channels of guest-free FJI-W-66a significantly contract to a nearly closed-pore state. FJI-W-66a shows the stepwise adsorption isotherms for C2 hydrocarbons, which suggests the occurrence of structural transformation between less open and more open phases. Breakthrough experiments provide evidence that FJI-W-66a can selectively separate C2H4 from C2H2/C2H4/C2H6 mixtures with different ratios under ambient conditions, realizing the one-step acquisition of C2H4 from ternary C2 hydrocarbons.
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Affiliation(s)
- Wenjing Zhang
- College of Chemistry, Fuzhou University, Fuzhou 350108, Fujian, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Shuixiang Zou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Yunzhe Zhou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Zhenyu Ji
- College of Chemistry, Fuzhou University, Fuzhou 350108, Fujian, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Hengbo Li
- College of Chemistry, Fuzhou University, Fuzhou 350108, Fujian, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Guoli Zhen
- College of Chemistry, Fuzhou University, Fuzhou 350108, Fujian, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Cheng Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Danhua Song
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Mingyan Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
- Fujian College, University of Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
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Ma LN, Wang GD, Hou L, Zhu Z, Wang YY. Efficient One-Step Purification of C 1 and C 2 Hydrocarbons over CO 2 in a New CO 2-Selective MOF with a Gate-Opening Effect. ACS APPLIED MATERIALS & INTERFACES 2022; 14:26858-26865. [PMID: 35642726 DOI: 10.1021/acsami.2c06744] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Removing CO2 impurity is an essential industrial process in the purification of hydrocarbons. The most promising strategy is the one-step collection of high-purity hydrocarbons by employing CO2-selective adsorbents, which requires improving the CO2 adsorption and separation behavior of adsorbents, especially the low-pressure performance under actual industrial conditions. Herein, we constructed a new flexible metal-organic framework [Zn(odip)0.5(bpe)0.5(CH3OH)]·0.5NMF·H2O (1) (H4odip = 5,5'-oxydiisophthalic acid, bpe = 1,2-bi(4-pyridyl)ethylene, and NMF = N-methylformamide) containing rich ether O adsorption sites in the channels that exhibits remarkable adsorption capacity for CO2 (118.7 cm3 g-1) due to the only gate-opening-type abrupt adsorption of CO2 at room temperature. Its low affinity for other competing gases enables it to deliver high selectivity for the adsorption of CO2 over C1 and C2 hydrocarbons. For equimolar mixtures of CO2-CH4 and CO2-C2H2, the selectivities are 376.0 and 13.2, respectively. Molecular simulations disclose more abundant adsorption sites for CO2 than hydrocarbons in 1. The breakthrough separation performances combined with remarkable stability and recyclability further verify that 1 is a promising adsorbent that can efficiently extract high-purity hydrocarbons through selective capture of CO2.
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Affiliation(s)
- Li-Na Ma
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Gang-Ding Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Lei Hou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Zhonghua Zhu
- School of Chemical Engineering, The University of Queensland, Brisbane 4072, Australia
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
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Zhao D, Song J, Zhang X, Wang F, Li B, Yang L, Deng Y, Li Q, Fan L. A pillar-layered binuclear 3D cobalt(ii) coordination polymer as an electrocatalyst for overall water splitting and as a chemosensor for Cr(vi) anion detection. CrystEngComm 2021. [DOI: 10.1039/d1ce00685a] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A 3D pillar-layered cobalt(ii) CP with a 3D (4,6)-connected {44·610·8}{44·62} fsc net was designed and it showed great potential as an electrocatalyst in the overall water splitting and as a chemosensor for Cr(vi) anion detection.
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Affiliation(s)
- Dongsheng Zhao
- Department of Chemistry, College of Science, North University of China, Taiyuan, P. R. China
| | - Junqi Song
- Department of Chemistry, College of Science, North University of China, Taiyuan, P. R. China
| | - Xiutang Zhang
- Department of Chemistry, College of Science, North University of China, Taiyuan, P. R. China
| | - Feng Wang
- Department of Chemistry, College of Science, North University of China, Taiyuan, P. R. China
| | - Bei Li
- Department of Chemistry, College of Science, North University of China, Taiyuan, P. R. China
| | - Lulu Yang
- Department of Chemistry, College of Science, North University of China, Taiyuan, P. R. China
| | - Yuxin Deng
- Department of Chemistry, College of Science, North University of China, Taiyuan, P. R. China
| | - Qingbo Li
- Center for Optics Research and Engineering, Shandong University, Qingdao, Shandong, P. R. China
| | - Liming Fan
- Department of Chemistry, College of Science, North University of China, Taiyuan, P. R. China
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