Dataset Information

Rapid Production of Metal-Organic Frameworks Based Separators in Industrial-Level Efficiency.

ABSTRACT: Metal-organic framework (MOF) based mixed matrix membranes (MMMs) have received significant attention in applications such as gas separation, sensing, and energy storage. However, the mass production of MOF-based MMMs with retained porosity remains a longstanding challenge. Herein, an in situ heat-assisted solvent-evaporation method is described to facilely produce MOF-based MMMs. This method can be extended into various MOFs and polymers with minimum reaction time of 5 min. Thus-obtained MMMs with high uniformity, excellent robustness, well-tuned loading, and thickness can be massively produced in industrial-level efficiency (?4 m in a batch experiment). Furthermore, they can be readily applied as powerful separators for Li-S cell with high specific capacity (1163.7 mAh g^-1) and a capacity retention of 500.7 mAh g^-1 after 700 cycles at 0.5 C (0.08% fading per cycle). This work may overcome the longstanding challenge of processing MOFs into MMMs and largely facilitate the industrialization process of MOFs.

SUBMITTER: Gao GK

PROVIDER: S-EPMC7740102 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Rapid Production of Metal-Organic Frameworks Based Separators in Industrial-Level Efficiency.

Gao Guang-Kuo GK Wang Yi-Rong YR Zhu Hong-Jing HJ Chen Yifa Y Yang Ru-Xin RX Jiang Cheng C Ma Huiyuan H Lan Ya-Qian YQ

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 20201106 24

Metal-organic framework (MOF) based mixed matrix membranes (MMMs) have received significant attention in applications such as gas separation, sensing, and energy storage. However, the mass production of MOF-based MMMs with retained porosity remains a longstanding challenge. Herein, an in situ heat-assisted solvent-evaporation method is described to facilely produce MOF-based MMMs. This method can be extended into various MOFs and polymers with minimum reaction time of 5 min. Thus-obtained MMMs w ...[more]

PMID: 33344128

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Project description:Despite the known impacts on climate change of carbon dioxide emissions, the continued use of fossil fuels for energy generation leading to the emission of carbon dioxide (CO2) into the atmosphere is evident. Therefore, innovation to address and reduce CO2 emissions from industrial operations remains an urgent and crucial priority. A viable strategy in the area is postcombustion capture mainly through absorption by aqueous alkanolamines, which focuses on the separation of CO2 from flue gas, despite its limitations. Within this context, porous materials, particularly metal-organic frameworks (MOFs), have arisen as favorable alternatives owing to their significant adsorption capacity, selectivity, and reduced regeneration energy demands. This research evaluates the engineering insights into tailored MOFs for enhanced CO2 capture, focusing on three series of MOFs (ZIF, UiO-66, and BTC) to investigate the effects of organic ligands, functional groups, and metal ions. The evaluation encompassed a range of aspects including adsorption isotherms of pure gases [CO2 and nitrogen (N2)] and mixed gas mixture (CO2 and N2 with 15:85% ratio), along with utilization of the ideal adsorbed solution theory (IAST) to simulate multicomponent gas adsorption isotherms. Moreover, the reliability of IAST for mixed gas adsorption prediction has been investigated in detail. The research offers valuable insights into the correlation between the characteristics of MOFs and their effectiveness in gas separation and how these characteristics contribute to the differences between IAST predictions and experimental results. The findings enhance the understanding of how to enhance MOF characteristics in order to reduce CO2 emissions and also highlight the need for advanced models that consider thermodynamic nonidealities to accurately predict the behavior of mixed gas adsorption in MOFs. As a result, the incorporation of MOFs with enhanced predictability and reliability into CO2 capture industrial processes is facilitated.

Dataset Information

Rapid Production of Metal-Organic Frameworks Based Separators in Industrial-Level Efficiency.

Publications

Rapid Production of Metal-Organic Frameworks Based Separators in Industrial-Level Efficiency.

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