期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 111, 期 -, 页码 346-355出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2022.04.016
关键词
Bimetallic; Metal organic frameworks; Microwave; Adsorption; UTSA-16
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Korea government (MSIT) [NRF-2021R1F1A1045789]
- Cooperative R&D between Industry, Academy, and Research Institute- Korea Ministry of SMEs and Startups [S3059861, S3108563]
- Korea Petrochemical Ind. Co. LTD (KPIC) company
- Financial Program for Self-Directed Research Capacity in 2022, Chang-won National University
- Korea Technology & Information Promotion Agency for SMEs (TIPA) [S3059861, S3108563] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A series of bimetallic MOFs with different metal ratios were synthesized using microwave irradiation. The optimal ratio achieved improved CO2 adsorption capacity and selectivity over N-2. The bimetallic MOFs showed consistent CO2 capture performance after exposure to acid gases and cyclic experiments.
A series of bimetallic UTSA-16 (Zn, X; X = Mg, Mn, and Cu) metal organic frameworks (MOFs) with different metal ratios was synthesized using a microwave irradiation method. Synthesis at an optimal Zn-to-metal ratio of 7:2 achieved a 9-18% increase in the CO2 adsorption capacity and an enhanced adsorption selectivity of CO2 over N-2 compared to those of the parent UTSA-16 (Zn). Bimetallic UTSA-16 powders, with ratios of 7:2, were pelletized for a stability study that exposed the pellets to acid gases (NO2 and SO2) in a humid air condition; additionally, they underwent adsorption-desorption cyclic experiments. The results showed that the CO2 capture performance was consistent after exposure to NO2 gas in humid air and adsorption-desorption cycling with temperature swing. The morphological properties of the bimetallic MOFs were characterized using scanning electron microscopy, Brunauer - Emmett - Teller analysis, Fourier transform infrared spectroscopy, and X-ray diffraction. The characterization data showed that the bimetallic UTSA-16 (Zn, X) MOFs exhibited good crystallinity and morphology, similar to the original UTSA-16 (Zn) MOF. (C) 2022 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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