Synthesis and characterization of three amino-functionalized metal-organic frameworks based on 2-aminoterphthalic ligand

Yang, Ying, Lin, Rijia, Ge, Lei, Hou, Lei, Bernhardt, Paul V., Rufford, Thomas, Wang, Shaobin, Rudolph, Victor, Wang, Yaoyu and Zhu, Zhonghua (2015) Synthesis and characterization of three amino-functionalized metal-organic frameworks based on 2-aminoterphthalic ligand. Dalton Transactions, 44 17: 8190-8197. doi:10.1039/c4dt03927k

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Author Yang, Ying
Lin, Rijia
Ge, Lei
Hou, Lei
Bernhardt, Paul V.
Rufford, Thomas
Wang, Shaobin
Rudolph, Victor
Wang, Yaoyu
Zhu, Zhonghua
Title Synthesis and characterization of three amino-functionalized metal-organic frameworks based on 2-aminoterphthalic ligand
Journal name Dalton Transactions   Check publisher's open access policy
ISSN 1477-9234
1477-9226
Publication date 2015-05-07
Year available 2015
Sub-type Article (original research)
DOI 10.1039/c4dt03927k
Open Access Status File (Publisher version)
Volume 44
Issue 17
Start page 8190
End page 8197
Total pages 8
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2016
Language eng
Formatted 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.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2016 Collection
 
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Created: Fri, 01 May 2015, 23:13:10 EST by Dr Thomas Rufford on behalf of School of Chemical Engineering