Selective Adsorption and Separation of Xylene Isomers and Ethylbenzene with the Microporous Vanadium(IV) Terephthalate MIL‐47

Alaerts, Luc; Kirschhock, Christine; Maes, M.; Veen, Monique A. van der; Finsy, Vincent; Depla, Anouschka; Martens, Johan A.; Baron, Gino V.; Jacobs, Pierre; Denayer, Joeri; Vos, Dirk De

doi:10.1002/anie.200700056

Cited by 516 publications

(403 citation statements)

References 34 publications

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“…It has been shown that these compounds are good candidates for adsorption and catalytic processes [5][6][7]. The hybrid nature of the materials fuelled expectations that it will be possible to discover new behaviours in separation and catalysis.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and adsorption properties of ZIF-76 isomorphs

Peralta

Chaplais

Simon‐Masseron

et al. 2012

Microporous and Mesoporous Materials

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:ZIF-76, Zn(Im) x (5-ClbIm) y (Im=imidazolate,, is, among the known ZIF structures, one of the few materials that combine a relatively large pore aperture with a large pore volume. Moreover, it is thermally stable up to 400 °C and can be stored under ambient atmosphere without undergoing a measurable degradation. ZIF-76, therefore, appears to be an interesting material for applications in adsorption and separation.The published synthesis protocol leads to very low yields and is, thus, not applicable on a larger scale [1]. In this work, we have succeeded in preparing ZIF-76 in suitable yields by changing the solvent and adding NaOH to the synthesis mixture. The addition of the base increases the yield and leads to smaller crystal sizes, by favoring nucleation over crystal growth. By using the same synthesis strategy, four new isomorphs of ZIF-76 were obtained, with different substituents on the benzimidazole ligand (Me, Br and NO 2 ) and different metal sources (Co and Zn). All the samples were tested in the adsorption and separation of CO 2 /CH 4 in order to highlight the influence of the linker and of the metal center on the adsorption/separation properties.

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Section: Introductionmentioning

confidence: 99%

Synthesis and adsorption properties of ZIF-76 isomorphs

Peralta

Chaplais

Simon‐Masseron

et al. 2012

Microporous and Mesoporous Materials

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“…The few studies found in the literature show promising results. Alaerts et al [33] demonstrates the first successful use of MOF as selective adsorbent for this difficult task. Vapor-phase experiments carried out by Finsy et al, showed that the selectivity of MIL-47 increases with the degree of pore filling, due to efficient packing effects [34].…”

Section: Introductionmentioning

confidence: 99%

Modeling adsorption equilibria of xylene isomers in a microporous metal–organic framework

Bárcia

Nicolau

Gallegos

et al. 2012

Microporous and Mesoporous Materials

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a b s t r a c tSingle and multicomponent adsorption equilibria of xylene isomers: o-xylene (o-x), m-xylene (m-x), pxylene (p-x) and ethylbenzene (eb) was investigated on the three dimensional microporous metal-organic framework Zn(BDC)(Dabco) 0.5 (BDC = 1,4-benzenedicarboxylate, Dabco = 1,4-diazabicyclo[2.2.2]-octane), MOF 1, in the range of temperatures between 398 and 448 K and partial pressures up to 0.1 bar. The equilibrium data show that a significant amount (around 34 g/100g ads at 398 K) of xylene isomers can be adsorbed in MOF 1. The affinity to the adsorbent measured by the Henry's constants to decreases in the order o-x > m-x > eb > p-x for all temperatures. The zero coverage adsorption enthalpies are all similar and range from 77.4 (eb) to 79.8 kJ/mol (o-x). The Dual-Site Langmuir model (DSL) was used for the interpretation and correlation of the experimental data. The parameters obtained from the pure component isotherms fitting were also used to predict the multicomponent equilibrium data by an extended DSL model. A good agreement was obtained between the predictions and the experimental data. It was also demonstrated that the DSL model is also capable to explain the increase in the isosteric heat of sorption with increasing coverage.

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“…[1][2][3][4][5][6][7][8] The major applications currently being considered for these compounds involve gas storage, [9][10][11][12] catalysis, [13][14][15][16][17][18] separations, [19][20][21][22][23][24] as carriers for nano-materials 25,26 and drug delivery, 27,28 etc. For these applications, their high surface areas and unique pore structures are likely to offer many potential advantages over existing compounds.…”

Section: Introductionmentioning

confidence: 99%

Facile Syntheses of Metal-organic Framework Cu₃(BTC)₂(H₂O)₃under Ultrasound

Khan¹,

Jhung

2009

Bulletin of the Korean Chemical Society

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Cu-BTC[Cu3(BTC)2(H2O)3, BTC = 1,3,5-benzenetricarboxylate], one of the most well-known metal-organic framework materials (MOF), has been synthesized under atmospheric pressure and room temperature by using ultrasound. The Cu-BTC can be obtained in 1 min in the presence of DMF (N,N-dimethylformamide), suggesting the possibility of continuous production of Cu-BTC. Moreover, the surface area and pore volume show that the concentration of DMF is important for the synthesis of Cu-BTC having high porosity. The morphology and phase also depend on the concentration of DMF : Cu-BTC cannot be obtained at room temperature in the absence of DMF and aggregated Cu-BTC (with low surface area) is produced in the presence of high concentration of DMF. It seems that the deprotonation of benzenetricarboxylic acid by base (such as DMF) is inevitable for the room temperature syntheses.

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Selective Adsorption and Separation of Xylene Isomers and Ethylbenzene with the Microporous Vanadium(IV) Terephthalate MIL‐47

Cited by 516 publications

References 34 publications

Synthesis and adsorption properties of ZIF-76 isomorphs

Synthesis and adsorption properties of ZIF-76 isomorphs

Modeling adsorption equilibria of xylene isomers in a microporous metal–organic framework

Facile Syntheses of Metal-organic Framework Cu₃(BTC)₂(H₂O)₃under Ultrasound

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Selective Adsorption and Separation of Xylene Isomers and Ethylbenzene with the Microporous Vanadium(IV) Terephthalate MIL‐47

Cited by 516 publications

References 34 publications

Synthesis and adsorption properties of ZIF-76 isomorphs

Synthesis and adsorption properties of ZIF-76 isomorphs

Modeling adsorption equilibria of xylene isomers in a microporous metal–organic framework

Facile Syntheses of Metal-organic Framework Cu3(BTC)2(H2O)3under Ultrasound

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Product

Resources

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Facile Syntheses of Metal-organic Framework Cu₃(BTC)₂(H₂O)₃under Ultrasound