Recent progress in metal-organic frameworks (MOFs) for CO2 capture at different pressures

Mahajan, Surabhi; Lahtinen, Manu

doi:10.1016/j.jece.2022.108930

Cited by 57 publications

(32 citation statements)

References 306 publications

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“…With this in mind, we turned our attention to the ligand ( L , Figure ), whose capabilities for spin crossover properties − and anion−π interactions have been well known. Besides, this bent ligand has been exploited for the construction and design of novel metal–organic frameworks (MOF S ) − and documented independently by the group Du et al as cocrystals with a series of organic carboxylic acids.…”

Section: Introductionmentioning

confidence: 99%

Inorganic Anion-Mediated Supramolecular Entities of 4-Amino-3,5-Bis(4-Pyridyl)-1,2,4-Triazole Salts Assisted by the Interplay of Noncovalent Interactions

Mahajan

Marttinen

Forsblom

et al. 2023

Crystal Growth & Design

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The development of new families of synthetic molecular systems projecting neutral, bi-, or multi-H-bonding donor units is significant to acquire the desired selectivity within the fascinating area of anion recognition. Here, we illustrate the reaction between a neutral 4-amino-3,5-bis(4-pyridyl)-1,2,4-triazole ligand (L) with acidic solutions containing either chloride, bromide, nitrate, phosphate, iodide, sulfate, hexafluorosilicate, fluoride, tetrafluoroborate or perchlorate anions, yielding 16 new anion-mediated supramolecular entities, H2LCl2 (1), H2LBr2 (2), H2L(NO3)2 (3), HL(H2PO4) (4), H2L(H2PO4)2 (5), [H2L]2I4 (6), H2L(NO3)2 (7), H2L(SO4)·H2O (8), H2LSiF6 (9), H2LSiF6·2H2O (10), H2L(HF2)2 (11), H3LI3 (12), H3L(BF4)3 (13), H3L(ClO4)3 (14), H3L(ClO4)3·2H2O (15), and H3LH3O(SiF6)2·2H2O (16), thoroughly examined by elemental analyses, Fourier transform-attenuated total reflectance-infrared (FT-ATR-IR), thermal analysis, powder diffraction, and single-crystal X-ray diffraction. We identified the propensity of H2PO4 – into a cyclic hexameric cluster (H2PO4 –)6 stabilized by a bent ligand L via a combination of functionalities such as an amino group, pyridyl terminals, and a triazolyl core. Additionally, we also found the anion–water clusters ranging from a cyclic tetramer [(SO4)2–(H2O)2]4– and an octameric cluster [(SiF6)4–(H2O)4]∞ 8– to an acyclic tetramer [(ClO4 –)2(H2O)2]. As shown by the study, subtle modulation in the crystallization environment offers the possibility to yield entirely distinctive forms of molecular salts comprising both anhydrous and a few hydrates with different protonated numbers (mono-, di- or triprotonated). A systematic study indicates that the molecular salts obtained from different anions construct diverse supramolecular extended architectures (e.g., bricklayer, columns, zig-zag, stair-steps, wave-like, helical, double chain, and criss-cross orientation) self-assembled by a combination of noncovalent interactions, constituting distinct H-bonded geometry patterns, essentially depending on the molecular conformation of the bent ligand and the type of the anion utilized (linear, spherical, triangular, tetrahedral, and octahedral) in the preparation of salts.

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Section: Introductionmentioning

confidence: 99%

Inorganic Anion-Mediated Supramolecular Entities of 4-Amino-3,5-Bis(4-Pyridyl)-1,2,4-Triazole Salts Assisted by the Interplay of Noncovalent Interactions

Mahajan

Marttinen

Forsblom

et al. 2023

Crystal Growth & Design

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“…Countless solid adsorbents, including carbon (Tabarkhoon et al 2023), zeolites (Cheung andHedin 2014, Al -Naddaf et al 2020), amine-functionalized porous (Yang et al 2021), and metal-organic frameworks (Mahajan andLahtinen 2022, Younas et al 2020), have been thoroughly researched to adsorb CO2. Due to their potent capacity to chemisorbed low CO2 concentration from wet flue gas, aminefunctionalized porous materials have undergone the greatest research among these adsorbents (Gaikwad et al 2021, Alkadhem, Elgzoly and Onaizi 2020, Li et al 2022.…”

Section: Chemisorption Methodsmentioning

confidence: 99%

Advanced Indoor CO2 Capture Technologies: A Comprehensive Review and Future Perspectives

Yuan

Song

Yang

et al. 2023

Preprint

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The prevalence of indoor air pollution, primarily stemming from human activities, has led to increasing concerns regarding elevated CO2 concentrations in indoor environments. Prolonged exposure to such environments has been linked to reduced productivity, headaches, nausea, and more severe health risks, such as Sick Building Syndrome. Consequently, the development of efficient methods to reduce CO2 concentrations in indoor air is of utmost importance. This review offers a comprehensive analysis of cutting-edge indoor CO2 capture technologies, delving into the adsorption performance of solvents produced via various techniques. Our findings highlight the emergence of innovative materials that significantly enhance the indoor adsorption process; nevertheless, further investigation into reaction kinetics and stability remains imperative for continued progress. Among the methods assessed, Thermal Swing Adsorption and Wet Impregnation demonstrate superior suitability for indoor CO2 capture applications. Importantly, this review also emphasizes the potential of novel ventilation strategies, incorporating both internal ventilation and CO2 capture devices, to not only reduce indoor CO2 concentrations but also promote energy efficiency in buildings.

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“…89 For example, within the MOF-74 family, a decrease in the CO 2 capture is observed under wet conditions, due to competition for adsorption sites between CO 2 and H 2 O. 90 After understanding more about the water adsorption properties of MFM-300(Sc), kinetic CO 2 adsorption experiments were carried out at different relative humidities (10, 20, 35 and 60%), increasing CO 2 uptakes at 10 and 20 RH% (Fig. 6(c) and (d)).…”

Section: Water (H 2 O)mentioning

confidence: 99%

“…89 For example, within the MOF-74 family, a decrease in the CO 2 capture is observed under wet conditions, due to competition for adsorption sites between CO 2 and H 2 O. 90…”

Section: Gas/vapour Capture and Separationmentioning

confidence: 99%

MFM-300(Sc): a chemically stable Sc(iii)-based MOF material for multiple applications

Ibarra

López-Cervantes

Obeso³

et al. 2023

Chem. Commun.

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Recent progress in metal-organic frameworks (MOFs) for CO2 capture at different pressures

Cited by 57 publications

References 306 publications

Inorganic Anion-Mediated Supramolecular Entities of 4-Amino-3,5-Bis(4-Pyridyl)-1,2,4-Triazole Salts Assisted by the Interplay of Noncovalent Interactions

Inorganic Anion-Mediated Supramolecular Entities of 4-Amino-3,5-Bis(4-Pyridyl)-1,2,4-Triazole Salts Assisted by the Interplay of Noncovalent Interactions

Advanced Indoor CO2 Capture Technologies: A Comprehensive Review and Future Perspectives

MFM-300(Sc): a chemically stable Sc(iii)-based MOF material for multiple applications

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