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Gram-Scale Synthesis of an Ultrastable Microporous Metal-Organic Framework for Efficient Adsorptive Separation of $C_{2}H_{2}/CO_{2}$ and $C_{2}H_{2}/CH_{4}$
| Content Provider | MDPI |
|---|---|
| Author | Xu, Nuo Jiang, Yunjia Sun, Wanqi Li, Jiahao Wang, Lingyao Jin, Yujie Zhang, Yuanbin Wang, Dongmei Duttwyler, Simon |
| Copyright Year | 2021 |
| Description | A highly water and thermally stable metal-organic framework (MOF) $Zn_{2}(Pydc)(Ata)_{2}$ (1, $H_{2}$Pydc = 3,5-pyridinedicarboxylic acid; HAta = 3-amino-1,2,4-triazole) was synthesized on a large scale using inexpensive commercially available ligands for efficient separation of $C_{2}H_{2}$ from $CH_{4}$ and $CO_{2}$. Compound 1 could take up 47.2 mL/g of $C_{2}H_{2}$ under ambient conditions but only 33.0 mL/g of $CO_{2}$ and 19.1 mL/g of $CH_{4}$. The calculated ideal absorbed solution theory (IAST) selectivities for equimolar $C_{2}H_{2}/CO_{2}$ and $C_{2}H_{2}/CH_{4}$ were 5.1 and 21.5, respectively, comparable to those many popular MOFs. The $Q_{st}$ values for $C_{2}H_{2}$, $CO_{2}$, and $CH_{4}$ at a near-zero loading in 1 were 43.1, 32.1, and 22.5 kJ $mol^{−1}$, respectively. The practical separation performance for $C_{2}H_{2}/CO_{2}$ mixtures was further confirmed by column breakthrough experiments. |
| Starting Page | 5121 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules26175121 |
| Journal | Molecules |
| Issue Number | 17 |
| Volume Number | 26 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-08-24 |
| Access Restriction | Open |
| Subject Keyword | Molecules Inorganic Chemistry Metal-organic Frameworks Gas Adsorption C2h2/co2 Separation C2h2/ch4 Separation Gram-scale Synthesis |
| Content Type | Text |
| Resource Type | Article |
