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https://hdl.handle.net/2440/115750
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Type: | Journal article |
Title: | Synthesis and characterization of three amino-functionalized metal-organic frameworks based on the 2-aminoterephthalic ligand |
Author: | Yang, Y. Lin, R. Ge, L. Hou, L. Bernhardt, P. Rufford, T. Wang, S. Rudolph, V. Wang, Y. Zhu, Z. |
Citation: | Dalton Transactions: an international journal of inorganic chemistry, 2015; 44(17):8190-8197 |
Publisher: | Royal Society of Chemistry |
Issue Date: | 2015 |
ISSN: | 1477-9226 1477-9234 |
Statement of Responsibility: | Ying Yang, Rijia Lin, Lei Ge, Lei Hou, Paul Bernhardt, Thomas E. Rufford, Shaobin Wang, Victor Rudolph, Yaoyu Wang and Zhonghua Zhu |
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. |
Description: | Published on 26 March 2015 |
Rights: | This journal is © The Royal Society of Chemistry 2015 |
DOI: | 10.1039/c4dt03927k |
Grant ID: | http://purl.org/au-research/grants/arc/FT120100720 |
Published version: | http://dx.doi.org/10.1039/c4dt03927k |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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