Correlating vibrational properties with temperature and pressure dependent CO2 adsorption in zeolitic imidazolate frameworks

Kontos, Athanassios G.; Romanos, George E.; Veziri, Charitomeni M.; Gotzias, Anastasios; Arfanis, Michalis K.; Kouvelos, Evangelos P.; Likodimos, V.; Karanikolos, Georgios N.; Falaras, Polycarpos

doi:10.1016/j.apsusc.2020.147058

Cited by 16 publications

(15 citation statements)

References 46 publications

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“…For the amino-decorated channel, the activated 1 is expected to favor the adsorption of CO 2 . Therefore, the CO 2 adsorption behavior was evaluated at 273 and 298 K. As shown in Figure a, the activated 1 shows a moderately high CO 2 uptake of 78.6 cm 3 /g at 273 K and 46.6 cm 3 /g at 298 K under 1 atm, which is superior to some reported MOFs, such as IITKGP-5a(Zn) (72.8 cm 3 /g at 273 K), ZIF-69 (70 cm 3 /g at 273 K), UiO-66 (39.2 cm 3 /g at 298 K), and MOF-5 (38.1 cm 3 /g at 298 K) . In order to qualify the binding strength between CO 2 with the framework, the isosteric enthalpy of adsorption ( Q st ) for CO 2 was calculated by virial analysis based on the adsorption isotherms at 273 and 298 K. As shown in Figure b, the Q st value of CO 2 at zero loading is 22.54 kJ/mol.…”

Section: Resultsmentioning

confidence: 91%

An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO₂

Zhou

Liu

Alexandrov

et al. 2021

Crystal Growth & Design

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Efficient capture and conversion of CO2 are important in energy utilization and environmental protection. A new porous metal–organic framework [Zn4O(NH2-bpdc)3(bpe)0.5(H2O)]·10DMF [NH2-H2bpdc = 2-amino-biphenyl-4,4′-dicarboxylic acid, bpe = 1,2-bi(4-pyridyl)ethylene] has been synthesized based on an amino-tagged organic linker and tetranuclear {Zn4O} SBU. This compound exhibits an unusual self-catenated underlying net of topological type hxg-d-7- R-3c. The framework shows excellent thermal stability for the high connectivity and consists of abundant exposed metal sites and coordination-free amino groups, which make it an efficient heterogeneous catalyst for the cycloaddition of CO2 with epoxides under mild conditions.

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Section: Resultsmentioning

confidence: 91%

An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO₂

Zhou

Liu

Alexandrov

et al. 2021

Crystal Growth & Design

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“…2-Nitroimidazole (nIm), a nitro-functionalized imidazole connector, has been extensively employed to prepare Zeolitic Imidazolate Frameworks (ZIFs) [24][25][26][27]. On one hand, the nitro group has the higher dipole moment, which is conducive to formation of dipole-quadrupole interactions with CO 2 molecules [28].…”

Section: Introductionmentioning

confidence: 99%

A 2D Porous Pb-MOF Based on 2-Nitroimidazole: CO <sub>2</sub> Adsorption, Electronic Structure and Luminescence

Wang

Song

et al. 2021

SSRN Journal

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A new porous metal-organic framework, [Pb 5 (Ac) 7 (nIm) 3 ] n (1), has been successfully synthesized by employing 2-nitroimidazole ligand and Pb 2+ ion. 1 contains novel the ribbon-shaped Pb-O SBU and reveals a 2D porous framework with a 1D tubular channel. Moreover, 1 shows moderate adsorption uptake towards CO 2 and luminescence properties from intraligand charge transfer. We further con rmed nitro group and metal ion are important adsorption sites by GCMC simulations, and the electronic structures of 1 was investigated.

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“…CelloZIF-L and CelloZIF-8 exhibited CO2 adsorption capacity of 0.58-1.1 mmol•g -1 and 0.33-0.57 mmol•g -1 , respectively [120] . ZIF-68 and ZIF-69 exhibited a CO2 adsorption capacity of 7.5 and 5.5 mmol•g -1 , respectively, at 20 bar [121] .…”

Section: Defectsmentioning

confidence: 98%

“…This observation is due to the cushion-like pore of ZIF-L (Figure 3). The vibrational properties of ZIFs materials such as ZIF-68 and ZIF-69 [121] . The high CO2 uptake causes high free-breathing vibrations of the ligands, causing the large ZIF pores [121] .…”

Section: Effect Of Zifs' Properties: Structure Porosity Guest Molecul...mentioning

confidence: 99%

A Review on Removal of Carbon Dioxide (CO2) using Zeolitic Imidazolate Frameworks: Adsorption and Conversion via Catalysis

Abdelhamid

2022

Preprint

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Carbon dioxide (CO2) is one of the culprit causes of global climatic changes. Furthermore, the efficient separation of CO2 from other gaseous mixtures using ZIFs-based materials is vital for several processes such as flue gas separation, gas sweetening, and natural gas processing. Zeolitic imidazolate frameworks (ZIFs)-based materials are emerging adsorbents and catalysts for CO2 gas removal via adsorption and conversion into valuable chemicals. ZIFs-based adsorbents with high adsorption/conversion efficiencies and tunable properties can be achieved by judicious synthesis and fabrication methods. We reviewed ZIF-based materials for CO2 removal via adsorption and catalysis (e.g., cycloaddition, carboxylation, hydrogenation, N-formylation, electrocatalysis, and photocatalysis). In addition, recent development methods such as membrane synthesis and ways to improve the gas separation performance of ZIF membranes were highlighted. The prospective point of view to promote industrial applications and commercialization of ZIF-based materials was briefly discussed. Once challenges such as low performance and reproducibility for ZIFs-based materials are solved, scalability and cost-effectiveness should not become issues.

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Correlating vibrational properties with temperature and pressure dependent CO2 adsorption in zeolitic imidazolate frameworks

Cited by 16 publications

References 46 publications

An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO₂

An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO₂

A 2D Porous Pb-MOF Based on 2-Nitroimidazole: CO <sub>2</sub> Adsorption, Electronic Structure and Luminescence

A Review on Removal of Carbon Dioxide (CO2) using Zeolitic Imidazolate Frameworks: Adsorption and Conversion via Catalysis

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Correlating vibrational properties with temperature and pressure dependent CO2 adsorption in zeolitic imidazolate frameworks

Cited by 16 publications

References 46 publications

An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO2

An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO2

A 2D Porous Pb-MOF Based on 2-Nitroimidazole: CO <sub>2</sub> Adsorption, Electronic Structure and Luminescence

A Review on Removal of Carbon Dioxide (CO2) using Zeolitic Imidazolate Frameworks: Adsorption and Conversion via Catalysis

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Product

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An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO₂

An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO₂