Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand
© The Royal Society of Chemistry 2015. The incorporation of Lewis base sites and open metal cation sites into metal-organic frameworks (MOFs) is a potential route to improve selective CO<inf>2</inf> adsorption from gas mixtures. In this study, three novel amino-functional...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Royal Society of Chemistry
2015
|
| Online Access: | http://hdl.handle.net/20.500.11937/4626 |
| _version_ | 1848744569491947520 |
|---|---|
| author | Yang, Y. Lin, R. Ge, L. Hou, L. Bernhardt, P. Rufford, T. Wang, Shaobin Rudolph, V. Wang, Y. Zhu, Z. |
| author_facet | Yang, Y. Lin, R. Ge, L. Hou, L. Bernhardt, P. Rufford, T. Wang, Shaobin Rudolph, V. Wang, Y. Zhu, Z. |
| author_sort | Yang, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © The Royal Society of Chemistry 2015. The incorporation of Lewis base sites and open metal cation sites into metal-organic frameworks (MOFs) is a potential route to improve selective CO<inf>2</inf> adsorption from gas mixtures. In this study, three novel amino-functionalized metal-organic frameworks (MOFs): Mg-ABDC [Mg<inf>3</inf>(ABDC)<inf>3</inf>(DMF)<inf>4</inf>], Co-ABDC [Co<inf>3</inf>(ABDC)<inf>3</inf>(DMF)<inf>4</inf>] and Sr-ABDC [Sr(ABDC)(DMF)] (ABDC = 2-aminoterephthalate) were synthesized by solvothermal reactions of 2-aminoterephthalic acid (H<inf>2</inf>ABDC) with magnesium, cobalt and strontium metal centers, respectively. Single-crystal structure analysis showed that Mg-ABDC and Co-ABDC were isostructural compounds comprising two-dimensional layered structures. The Sr-ABDC contained a three-dimensional motif isostructural to its known Ca analogue. The amino-functionalized MOFs were characterized by powder X-ray diffraction, thermal gravimetric analysis and N<inf>2</inf> sorption. The CO<inf>2</inf> and N<inf>2</inf> equilibrium adsorption capacities were measured at different temperatures (0 and 25 °C). The CO<inf>2</inf>/N<inf>2</inf> selectivities of the MOFs were 396 on Mg-ABDC, 326 on Co-ABDC and 18 on Sr-ABDC. Both Mg-ABDC and Co-ABDC exhibit high heat of CO<inf>2</inf> adsorption (>30 kJ mol<sup>-1</sup>). The Sr-ABDC displays good thermal stability but had a low adsorption capacity resulting from narrow pore apertures. |
| first_indexed | 2025-11-14T06:03:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-4626 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:03:33Z |
| publishDate | 2015 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-46262018-03-29T09:05:22Z Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand Yang, Y. Lin, R. Ge, L. Hou, L. Bernhardt, P. Rufford, T. Wang, Shaobin Rudolph, V. Wang, Y. Zhu, Z. © The Royal Society of Chemistry 2015. The incorporation of Lewis base sites and open metal cation sites into metal-organic frameworks (MOFs) is a potential route to improve selective CO<inf>2</inf> adsorption from gas mixtures. In this study, three novel amino-functionalized metal-organic frameworks (MOFs): Mg-ABDC [Mg<inf>3</inf>(ABDC)<inf>3</inf>(DMF)<inf>4</inf>], Co-ABDC [Co<inf>3</inf>(ABDC)<inf>3</inf>(DMF)<inf>4</inf>] and Sr-ABDC [Sr(ABDC)(DMF)] (ABDC = 2-aminoterephthalate) were synthesized by solvothermal reactions of 2-aminoterephthalic acid (H<inf>2</inf>ABDC) with magnesium, cobalt and strontium metal centers, respectively. Single-crystal structure analysis showed that Mg-ABDC and Co-ABDC were isostructural compounds comprising two-dimensional layered structures. The Sr-ABDC contained a three-dimensional motif isostructural to its known Ca analogue. The amino-functionalized MOFs were characterized by powder X-ray diffraction, thermal gravimetric analysis and N<inf>2</inf> sorption. The CO<inf>2</inf> and N<inf>2</inf> equilibrium adsorption capacities were measured at different temperatures (0 and 25 °C). The CO<inf>2</inf>/N<inf>2</inf> selectivities of the MOFs were 396 on Mg-ABDC, 326 on Co-ABDC and 18 on Sr-ABDC. Both Mg-ABDC and Co-ABDC exhibit high heat of CO<inf>2</inf> adsorption (>30 kJ mol<sup>-1</sup>). The Sr-ABDC displays good thermal stability but had a low adsorption capacity resulting from narrow pore apertures. 2015 Journal Article http://hdl.handle.net/20.500.11937/4626 10.1039/c4dt03927k Royal Society of Chemistry restricted |
| spellingShingle | Yang, Y. Lin, R. Ge, L. Hou, L. Bernhardt, P. Rufford, T. Wang, Shaobin Rudolph, V. Wang, Y. Zhu, Z. Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand |
| title | Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand |
| title_full | Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand |
| title_fullStr | Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand |
| title_full_unstemmed | Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand |
| title_short | Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand |
| title_sort | synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand |
| url | http://hdl.handle.net/20.500.11937/4626 |