Crystal-Size Effects on Carbon Dioxide Capture of a Covalently Alkylamine-Tethered Metal-Organic Framework Constructed by a One-Step Self-Assembly

Kim, Yun Kyeong; Hyun, Sung-Min; Lee, Jae Hwa; Kim, Tae Kyung; Moon, Dohyun; Moon, Hoi Ri

doi:10.1038/srep19337

Cited by 25 publications

(15 citation statements)

References 32 publications

(34 reference statements)

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“…MOFs, polymers) with nitrogen-rich functionalities have been developed as solid adsorbents onto which N sources are attached. These materials have attracted further attention based on the development of simulation software that theoretically reveals the CO2 capture mechanism [48,49].…”

Section: Nfsa Synthesis Methodsmentioning

confidence: 99%

“…Of these, Al-MOF MIL-101(Al) showed the highest adsorption capacity of 7.5 mmol/g-sorbent at 25 °C and 100 kPa, due to its extremely high surface area, rich N sites, and exceptional thermal and hydrothermal stability [183]. Kim et al [49] synthesized alkylamine-containing MOFs using a one-step self-assembly process, and they showed similar features to the amine-loaded adsorbents. The adsorption capacity increased with temperature and reached 1.4 mmol/g-sorbent at 100 °C, attributed to active chemical interactions between the amine groups and CO2 molecules.…”

Section: Nitrogen-doped Carbon Materialsmentioning

confidence: 99%

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A review of N-functionalized solid adsorbents for post-combustion CO2 capture

et al. 2020

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Over the past decade, amine-loaded solid adsorbents for capturing CO2 from power plants have been widely studied. Various nitrogen (N) sources have been used for this purpose, and the current range of adsorbents, referred to here as N-functionalized solid adsorbent (NFSAs), are the subject of this review. The main synthesis methods of NFSAs are described and recent progress in the field discussed. Criteria for improving NFSA performance are highlighted with reference to a variety of solid supports, providing guidance on the selection of highly efficient, inexpensive adsorbents. A thorough assessment of adsorption mechanisms and factors influencing the adsorption process is given. The review concludes by exploring future research and development opportunities, as well as pathways for commercializing NFSAs.

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Section: Nfsa Synthesis Methodsmentioning

confidence: 99%

Section: Nitrogen-doped Carbon Materialsmentioning

confidence: 99%

A review of N-functionalized solid adsorbents for post-combustion CO2 capture

et al. 2020

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“…69 To achieve amine grafted MOFs, another strategy was to construct MOFs with amine group on organic ligands. 40,56,[68][69][70][71] By using the click reaction, (3,24)-connected rht-MOF (NTU-105-NH 2 ) constructed by dendritic amine-functionalized hexacarboxylate ligand containing triazole unit was synthesized. NTU-105-NH 2 exhibited the CO 2 capture capacity of 167 cm 3 g −1 (32.8 wt %) at 1 atm, which is comparable to NUT-105 without the NH 2 group on the ligand.…”

Section: Amine Functionalized Mofsmentioning

confidence: 99%

Trace Carbon Dioxide Capture by Metal–Organic Frameworks

Liu

Wei

Zhao

2018

ACS Sustainable Chem. Eng.

106

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Climate deterioration is closely related to the CO 2 concentration in atmosphere, which is considered one of the major environmental challenges we are facing today. It is urgent to take immediate actions to prevent further climate change. In comparison with post-combustion CO 2 capture technologies from flue gas, trace CO 2 capture directly from air is still a challenge but very important for both CO 2 control in atmosphere and air condition control in confined space. This review highlights recent research advances in the use of metal-organic frameworks (MOFs) for trace CO 2 capture, with the emphasis on employing amine functionalized MOFs and ultra-microporous MOFs. Herein, the reported strategies to enhance CO 2 adsorption capacity and selectivity by MOFs are categorized into three main directions, including the developments of MOFs with open metal sites, ultra-microporous MOFs, and amine functionalized MOFs. The mechanisms combined with trace CO 2 capture performance by these MOFs are discussed in detail, offering some promising adsorption solutions for future practical applications of MOF materials. In addition, the performance for CO 2 capture under humid conditions and the regenerability of these MOF adsorbents are revealed. In order to address major issues of capacity, selectivity and stability especially under humid conditions, precise construction and engineering of MOFs to achieve the optimized porous materials are needed.

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“…MOF materials have been widely used in the field of gas adsorption due to their high specific surface area, adjustable pore size, and pore surface, especially in the adsorption of carbon, sulfur, and nitrogen-containing gases [105,106,107]. The silica in the MOF/silica composites acts as a structure-directing agent to guide the growth of MOFs into a regular morphology and provides protection for MOFs to improve their stability [65].…”

Section: Application Of Mof/silica Compositementioning

confidence: 99%

Functional Metal Organic Framework/SiO2 Nanocomposites: From Versatile Synthesis to Advanced Applications

et al. 2019

Polymers

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Metal organic frameworks (MOFs), also called porous coordination polymers, have attracted extensive attention as molecular-level organic-inorganic hybrid supramolecular solid materials bridged by metal ions/clusters and organic ligands. Given their advantages, such as their high specific surface area, high porosity, and open active metal sites, MOFs offer great potential for gas storage, adsorption, catalysis, pollute removal, and biomedicine. However, the relatively weak stability and poor mechanical property of most MOFs have limited the practical application of such materials. Recently, the combination of MOFs with inorganic materials has been found to provide a possible strategy to solve such limitations. Silica, which has excellent chemical stability and mechanical properties, shows great advantages in compounding with MOFs to improve their properties and performance. It not only provides structured support for MOF materials but also improves the stability of materials through hydrophobic interaction or covalent bonding. This review summarizes the fabrication strategy, structural characteristics, and applications of MOF/silica composites, focusing on their application in chromatographic column separation, catalysis, biomedicine, and adsorption. The challenges of the application of MOF/SiO2 composites are addressed, and future developments are prospected.

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Crystal-Size Effects on Carbon Dioxide Capture of a Covalently Alkylamine-Tethered Metal-Organic Framework Constructed by a One-Step Self-Assembly

Cited by 25 publications

References 32 publications

A review of N-functionalized solid adsorbents for post-combustion CO2 capture

A review of N-functionalized solid adsorbents for post-combustion CO2 capture

Trace Carbon Dioxide Capture by Metal–Organic Frameworks

Functional Metal Organic Framework/SiO2 Nanocomposites: From Versatile Synthesis to Advanced Applications

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