AI Article Synopsis
- Acetylene (CH) is difficult to separate from similar light hydrocarbons and carbon dioxide (CO) due to their comparable properties, which presents significant challenges.
- A new metal-organic framework (MOF) was created using a specially designed organic linker, HF-PyIP, which improved CH uptake and selectivity over CO and other gases.
- Experiments showed that the MOF can effectively separate CH from CO mixtures within time intervals of 30-44 minutes, demonstrating its potential for efficient gas separation processes.
Article Abstract
Separating acetylene (CH) from other light hydrocarbons and carbon dioxide (CO) mixtures under mild conditions poses significant challenges due to the remarkably similar properties between CH and those gases. For the goal of CH separation, a F-functionalized organic linker, HF-PyIP = 2-fluorine-5-(4-pyridyl)isophthalic acid, was designed, and the corresponding metal-organic framework (MOF), {[Co(F-PyIP)DMF]·4HO} (), was constructed. The MOF with open channels decorated by the active sites of the F groups revealed the exceptional CH uptake and selectivity over CO, CH, and CH. The breakthrough experiments with different molar ratios of CH-CH, CH-CO, and other gas mixtures further verified superior separation capacity of the MOF. In particular, the dynamic separation time intervals for gas mixtures (CH/CO = 1:1, 1:5, 1:10, and 1:20) fell in the range 30-44 min, highlighting the potential of the MOF for tackling the challenging CH/CO separation process.
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| http://dx.doi.org/10.1021/acs.inorgchem.3c02486 | DOI Listing |
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