From 2-methylimidazole to 1,2,3-triazole: a topological transformation of ZIF-8 and ZIF-67 by post-synthetic modification

Erkartal, Mustafa; Erkılıç, Ufuk; Tam, Benjamin; Usta, Hakan; Yazaydın, A. Özgür; Hupp, Joseph T.; Farha, Omar K.; Şen, Ünal

doi:10.1039/c6cc08746a

Cited by 69 publications

(60 citation statements)

References 36 publications

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“…SALE has been reported to drastically affect both the stability and the adsorption properties of the resulting frameworks . For instance, the Sen group has recently investigated the SALE of ZIF‐8 and ZIF‐67 with 1,2,3‐triazole and found that after the SALE reaction, the 2‐methylimidazole ligand was completely substituted with 1,2,3‐triazole, which resulted in the transformation of the topological transformation of the parent framework from an SOD network to a diamond (DIA) network . The resulting MOFs, Co‐triazolate (MET‐4) and Zn‐triazolate (MET‐6) were stable up to 250 °C, but they were less thermally stable than the parent ZIF‐67 and ZIF‐8, respectively.…”

Section: Strategies For Improving the Functionality Of Zifsmentioning

confidence: 99%

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

et al. 2017

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Zeolitic imidazolate frameworks (ZIFs), a subclass of metal-organic frameworks (MOFs) built with tetrahedral metal ions and imidazolates, offer permanent porosity and high thermal and chemical stabilities. While ZIFs possess some attractive physical and chemical properties, it remains important to enhance their functionality for practical application. Here, an overview of the extensive strategies which have been developed to improve the functionality of ZIFs is provided, including linker modifications, functional hybridization of ZIFs via the encapsulation of guest species (such as metal and metal oxide nanoparticles and biomolecules) into ZIFs, and hybridization with polymeric matrices to form mixed matrix membranes for industrial gas and liquid separations. Furthermore, the developed strategies for achieving size and shape control of ZIF nanocrystals are considered, which are important for optimizing the textural characteristics as well as the functional performance of ZIFs and their derived materials/hybrids. Moreover, the recent trends of using ZIFs as templates for the derivation of nanoporous hybrid materials, including carbon/metal, carbon/oxide, carbon/sulfide, and carbon/phosphide hybrids, are discussed. Finally, some perspectives on the potential future research directions and applications for ZIFs and ZIF-derived materials are offered.

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Section: Strategies For Improving the Functionality Of Zifsmentioning

confidence: 99%

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

et al. 2017

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“…MOFs materials have many advantages (large specific surface area, diversity of structure, adjustable pore size, unsaturated metal position and modifiable frameworks) and are used in many fields (gas storage and separation, optical materials, magnetic materials, catalytic materials, sensing material and biological materials) [4][5][6][7]. ZIF-8 has attracted extensive research interest because of its simple synthesis and various formulations, easy modification, and its potential applications in catalysis and gas separation [8][9][10]. Several researchers have reported the reason why ZIF-8 has high CO 2 adsorption performance.…”

Section: Introductionmentioning

confidence: 99%

Enhancement thermal stability and CO₂ adsorption property of ZIF-8 by pre-modification with polyaniline

Wang

Cui

Zhang

et al. 2020

Mater. Res. Express

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In this study, the thermal stability and CO 2 adsorption property of ZIF-8 were effectively improved by using parallel flow-drop solvothermal method. -NH 2 was successfully introduced into the surface of ZIF-8 and their structures by pre-modification with polyaniline. XRD analysis shown that the intensity of ZIF-8 characteristic peak increased with the increase doped content of polyaniline, but the crystal structure of ZIF-8 remained unchanged. FTIR analysis shown that the two new peaks at 1609 and 690 cm −1 can be attributed to the -NH 2 bonding of ZIF-8. TGA analysis shown that the thermal stability of NH 2 -ZIF-8 was 632.71°C. SEM analysis shown that the increase of CO 2 adsorption property was due to the increase of NH 2 -ZIF-8 cubic crystal system. It was found that BET surface area was 789.7 m 2 g −1 , micropore volume was 0.55 cm 3 g −1 , pore size was 0.99 nm by taking the molar ratio of metal ions to ligands being 1:2, and the molar ratios of polyaniline to metal ions being 12%.

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“…e thermal stability, CO 2 adsorption properties, and excellent selectivity are also important performance parameters for the practical application of ZIF-8 materials. e thermal stability of the reported MOF materials is mostly around 400°C and less than 500°C [11][12][13][14]. erefore, the thermal stability and CO 2 selectivity and adsorption properties of ZIF-8 materials should be further improved, expanding new application fields to meet the needs of the metallurgical industry and thermal power industry.…”

Section: Introductionmentioning

confidence: 99%

Effect of Lanthanum Doping on the Microstructure, Thermal Stability, and CO₂ Adsorption Property of ZIF-8

Sheng

Zhang

et al. 2019

Advances in Materials Science and Engineering

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The reaction materials La(NO3)3·6H2O, Zn(NO3)2·6H2O, and 2-methylimidazole were mixed in a certain proportion. A research process innovatively adopts the parallel flow-drop solvothermal method and a lanthanum-doping method to achieve the synthesis of metal organic frameworks. In this study, we successfully introduce lanthanum into the framework of ZIF-8 to stabilize the spatial structure and improve its performance. The structure and properties of La-ZIF-8 were characterized by the X-ray diffraction (XRD), scanning electron microscope (SEM), thermogravimetry analysis (TGA), and fourier transform infrared spectroscopy (FTIR). The relationship between microstructure stability and macroscopical properties is illustrated. The results show that the doping of lanthanum is beneficial for improving the thermal stability and CO2 adsorption property of ZIF-8 because of the improvement in the microstructure. The introduction of lanthanum to the ZIF-8 is also beneficial for forming porous frameworks and raising the thermal stability and CO2 adsorption properties. The crystallinity, structure, morphology, and thermal stability of La-ZIF-8 are optimal at the La content of 2 atom.%.

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From 2-methylimidazole to 1,2,3-triazole: a topological transformation of ZIF-8 and ZIF-67 by post-synthetic modification

Cited by 69 publications

References 36 publications

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

Enhancement thermal stability and CO₂ adsorption property of ZIF-8 by pre-modification with polyaniline

Effect of Lanthanum Doping on the Microstructure, Thermal Stability, and CO₂ Adsorption Property of ZIF-8

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From 2-methylimidazole to 1,2,3-triazole: a topological transformation of ZIF-8 and ZIF-67 by post-synthetic modification

Cited by 69 publications

References 36 publications

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

Enhancement thermal stability and CO2 adsorption property of ZIF-8 by pre-modification with polyaniline

Effect of Lanthanum Doping on the Microstructure, Thermal Stability, and CO2 Adsorption Property of ZIF-8

Contact Info

Product

Resources

About

Enhancement thermal stability and CO₂ adsorption property of ZIF-8 by pre-modification with polyaniline

Effect of Lanthanum Doping on the Microstructure, Thermal Stability, and CO₂ Adsorption Property of ZIF-8