Synthesis and characterization of three amino-functionalized metal–organic frameworks based on the 2-aminoterephthalic ligand
Article
Article Title | Synthesis and characterization of three amino-functionalized metal–organic frameworks based on the 2-aminoterephthalic ligand |
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ERA Journal ID | 1539 |
Article Category | Article |
Authors | Yang, Ying (Author), Lin, Rijia (Author), Ge, Lei (Author), Hou, Lei (Author), Bernhardt, Paul (Author), Rufford, Thomas E. (Author), Wang, Shaobin (Author), Rudolph, Victor (Author), Wang, Yaoyu (Author) and Zhu, Zhonghua (Author) |
Journal Title | Dalton Transactions: an international journal of inorganic chemistry |
Journal Citation | 44 (17), pp. 8190-8197 |
Number of Pages | 8 |
Year | 2015 |
Place of Publication | United Kingdom |
ISSN | 1477-9226 |
1477-9234 | |
Digital Object Identifier (DOI) | https://doi.org/10.1039/C4DT03927K |
Web Address (URL) | http://pubs.rsc.org/en/content/articlelanding/2015/dt/c4dt03927k/unauth#!divAbstract |
Abstract | The incorporation of Lewis base sites and open metal cation sites into metal-organic frameworks (MOFs) is a potential route to improve selective CO2 adsorption from gas mixtures. In this study, three novel amino-functionalized metal-organic frameworks (MOFs): Mg-ABDC [Mg3(ABDC)3(DMF)4], Co-ABDC [Co3(ABDC)3(DMF)4] and Sr-ABDC [Sr(ABDC)(DMF)] (ABDC = 2-aminoterephthalate) were synthesized by solvothermal reactions of 2-aminoterephthalic acid (H2ABDC) 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 N2 sorption. The CO2 and N2 equilibrium adsorption capacities were measured at different temperatures (0 and 25 °C). The CO2/N2 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 CO2 adsorption (>30 kJ mol-1). The Sr-ABDC displays good thermal stability but had a low adsorption capacity resulting from narrow pore apertures. © The Royal Society of Chemistry 2015. |
Keywords | adsorption; chelation; cobalt; crystal structure; crystalline materials; gravimetric analysis; metals; organometallics; single crystals; thermogravimetric analysis; X ray diffraction 2-aminoterephthalic acids; equilibrium adsorption capacity; metalorganic frameworks (MOFs); single-crystal structure analysis; synthesis and characterizations; thermal gravimetric analysis; three-dimensional motifs; two-dimensional layered structures; cobalt compounds |
ANZSRC Field of Research 2020 | 400401. Carbon capture engineering (excl. sequestration) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Northwest University, China | |
Curtin University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3z3z/synthesis-and-characterization-of-three-amino-functionalized-metal-organic-frameworks-based-on-the-2-aminoterephthalic-ligand
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