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https://hdl.handle.net/2440/115124
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Type: | Journal article |
Title: | Synthesis, characterization, and CO₂ adsorption of three metal-organic frameworks (MOFs): MIL-53, MIL-96, and amino-MIL-53 |
Other Titles: | Synthesis, characterization, and CO(2) adsorption of three metal-organic frameworks (MOFs): MIL-53, MIL-96, and amino-MIL-53 |
Author: | Abid, H. Rada, Z. Shang, J. Wang, S. |
Citation: | Polyhedron, 2016; 120:103-111 |
Publisher: | Elsevier |
Issue Date: | 2016 |
ISSN: | 0277-5387 1873-3719 |
Statement of Responsibility: | Hussein Rasool Abid, Zana Hassan Rada, Jin Shang, Shaobin Wang |
Abstract: | In this study, MIL-53, MIL-96, and amino-MIL-53 were prepared, characterized, and tested for CO2adsorption. These metal-organic frameworks (MOFs) exhibit different characteristics, although MIL-53 and amino-MIL-53 have the same topology. The BET surface areas are 1519, 687, and 262 m2/g for MIL-53, MIL-96, and amino-MIL-53, respectively. They exhibit different thermal stability with MIL-53 having the highest stability which starts to decompose at 773 K, while amino-MIL-53 and MIL-96 show lower thermal stability, decomposing upon heating up to 650 and 570 K, respectively. Static adsorption of CO2at 1 bar and 273 K was conducted, showing CO2adsorption capacities of 64, 124, and 48 cc/g for MIL-53, MIL-96, and amino-MIL-53, respectively. The heat of adsorption for CO2was found to be 39, 28.6, and 28 kJ/mol for MIL-53, MIL-96, and amino-MIL-53, respectively. Dynamic adsorption experiment shows that MIL-53 achieves the highest working capacity among all three materials around 169 cc/g at 1 bar and room temperature (304 K). Amino-MIL-53 shows a dynamic adsorption capacity of 121 cc/g at the same conditions and MIL-96 demonstrates a dynamic adsorption of 98.2 cc/g at 1 bar and 298 K. The higher working capacity demonstrated by MIL-53 and amino-MIL-53 are attributed to their larger pore size, making them promising candidate adsorbents for practicing carbon capture in real-world applications. |
Keywords: | CO₂ adsorption; MIL-53; MIL-96; dynamic adsorption; amino-MIL-53 |
Description: | Available online 5 July 2016 |
Rights: | © 2016 Elsevier Ltd. All rights reserved. |
DOI: | 10.1016/j.poly.2016.06.034 |
Grant ID: | http://purl.org/au-research/grants/arc/DP2013000024 |
Published version: | http://dx.doi.org/10.1016/j.poly.2016.06.034 |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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