Pure and mixed gas adsorption of CH4 and N2 on the metal–organic framework Basolite® A100 and a novel copper-based 1,2,4-triazolyl isophthalate MOF

Möllmer, Jens; Lange, Marcus; Möller, Andreas; Patzschke, Christin; Stein, Karolin; Lässig, Daniel; Lincke, Jörg; Gläser, Roger; Krautscheid, Harald; Staudt, Reiner

doi:10.1039/c2jm15734a

Cited by 116 publications

(89 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the goal of development and design of adsorbents focuses on the high CH 4 adsorption capacity, desired selectivities and excellent regeneration properties. In the literature, several available adsorbents such as carbon-base materials, 2-4 silica gels, 5 zeolites, [6][7][8][9] metal organic frameworks (MOFs) [10][11][12][13][14][15] and covalent organic frameworks(COFs) 16 have been prepared and applied into the separation of CH 4 /N 2 . Among these adsorbent materials, MOFs, as a relatively new class of inorganic and organic hybrid porous materials, are constructed by coordination chemistry of metal ion clusters and organic linkers.…”

Section: Introductionmentioning

confidence: 99%

Separation of CH₄/N₂mixtures in metal–organic frameworks with 1D micro-channels

Sun

Liu

et al. 2016

RSC Adv.

View full text Add to dashboard Cite

This work aims to study the features of CH4 and N2 adsorption inside 1D micro-channels and develop the best suitable MOF candidates for the adsorptive separation of CH4 against N2. For this purpose, four MOFs ([Ni3(HCOO)6], [Cu(INA)2], Al-BDC and Ni-MOF-74) with similar network topology and single 1D micro-channel have been systematically investigated via structure characterization and selective gas adsorption and separation. The selected MOFs are classified into three groups. Thereinto, Ni-MOF-74, with coordinatively unsaturated metal sites, is considered as strong polar adsorbent, whilst Al-BDC is treated as moderate polar adsorbent owing to the polar linkers. However, [Ni3(HCOO)6] and [Cu(INA)2] are regarded as apolar (weak polarity) adsorbents because of lack of any polar functional groups inside the frameworks. The adsorption potential of CH4 follows the trend Ni-MOF-74 > [Ni3(HCOO)6]> [Cu(INA)2] > Al-BDC, while Ni-MOF-74 > Al-BDC > [Ni3(HCOO)6] > [Cu(INA)2] for the potential of N2. This implies that pore size and electrostatic interactions have different contributions to the CH4 or N2-MOFs interactions, resulting in excellent CH4/N2 selectivity more than 6 on [Ni3(HCOO)6] and [Cu(INA)2].

show abstract

Section: Introductionmentioning

confidence: 99%

Separation of CH₄/N₂mixtures in metal–organic frameworks with 1D micro-channels

Sun

Liu

et al. 2016

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…A subsequent study of clinoptilolites by Yang and co-workers showed the strong effect of cation exchange on the adsorption properties, both in terms of equilibrium uptake and diffusivity [13]. The observed equilibrium selectivities in zeolites, titanosilicates, and MOFs are very modest, ranging between 2 and 5 (at T ≈ 300 K) [9,11,14,15].…”

Section: Introductionmentioning

confidence: 93%

“…The presence of impurities in natural gas or biogas reduces the efficiency of combustion, and renders transportation in compressed form more difficult [2]. While the separation of CO 2 /CH 4 mixtures has been widely studied, both for zeolites/zeotypes and metal-organic frameworks (MOFs) [3][4][5][6][7][8], the separation of methane from nitrogen and carbon monoxide has been investigated to a lesser extent [9][10][11]. Currently, the separation of CH 4 /N 2 mixtures, which is important for the purification of natural gas, is typically achieved by cryogenic distillation.…”

Section: Introductionmentioning

confidence: 99%

A DFT-D study of the interaction of methane, carbon monoxide, and nitrogen with cation-exchanged SAPO-34

Fischer¹,

Bell

2014

Zeitschrift Für Kristallographie - Crystalline Materials

View full text Add to dashboard Cite

Density-functional theory calculations including a semi-empirical dispersion correction (DFT-D) are employed to study the interaction of small guest molecules (CH 4 , CO, N 2 ) with the cation sites in the silicoaluminophosphate SAPO-34. Eight different cations from three different groups (alkali cations, alkaline earth cations, transition metals) are included in the study. For each case, the total interaction energy as well as the non-dispersive contribution to the interaction are analysed. Electron density difference plots are used to investigate the nature of this non-dispersive contribution in more detail. Despite a non-negligible contribution of polarisation interactions, the total interaction remains moderate in systems containing main group cations. In SAPOs exchanged with transition metals, orbital interactions between the cations and CO and N 2 lead to a very strong interaction, which makes these systems attractive as adsorbents for the selective adsorption of these species. A critical comparison with experimental heats of adsorption shows reasonable quantitative agreement for CO and N 2 , but a pronounced overestimation of the interaction strength for methane. While this does not affect the conclusions regarding the suitability of TM-exchanged SAPO-34 materials for gas separations, more elaborate computational approaches may be needed to improve the quantitative accuracy for this guest molecule.

show abstract

“…as a nodal metal atom coordinated to the ligand, 1,4-benzenedicarboxylic acid (BDC). Möllmer et al [9] studied gas adsorption isotherms of pure CH 4 , N 2 and their binary mixtures on A100 at 0, 25 and 46°C, respectively, up to a pressure of 15000 Torr. Calculation of the isosteric heats using Toth fitting parameters and the Clausius-Clapeyron equation yielded a heat of 19 kJ mol -1 for CH 4 adsorption and 16.2 kJ mol -1 for N 2 adsorption.…”

Section: Introductionmentioning

confidence: 99%

Adsorption microcalorimetry of small molecules on various metal–organic frameworks

Saha

Strickland

2016

J Therm Anal Calorim

View full text Add to dashboard Cite

Adsorption microcalorimetry of small molecules such as CO 2 , CH 4 , O 2 and NH 3 was studied on three commercially available metal-organic frameworks (MOFs), namely: Basolite TM A100, Basolite TM C300 and Basolite TM F300. All studies were conducted by interfacing a volumetric adsorption apparatus, Micromeritics ASAP 2020, with a differential scanning calorimeter, which runs isothermally. The CO 2 adsorption studies were performed on A100 and C300, at four different temperatures, and the uptakes increased with rise in temperature with significantly higher uptakes (approximately double) observed on C300. The differential heats on the A100 sample were confined in a low range of 18-36 kJ mol -1 and appeared to have similar profiles irrespective of the temperature. Comparably, low differential heats in the range of 21-27 kJ mol -1 were also observed for CO 2 adsorption on C300. However, unlike in A100, these heat profiles appeared to be relatively discrete and tend to decrease with increasing temperature. Adsorption of CH 4 on A100 showed increase in uptakes with temperature and very similar heats of adsorption profiles (16.5-19.5 kJ mol -1 ). O 2 adsorption studies on C300 indicated an increase in uptakes with temperature and scattered heat values (11.5-16.5 kJ mol -1 ) at all temperatures. NH 3 adsorption on F300 at 40°C using the ''two-isotherm'' method yielded an irreversible uptake of *4 mmol g -1 and an initial heat of 102 kJ mol -1 . Overall, it appears that MOFs have appreciable amount of adsorption capacity for small molecule adsorbates within a very low range of adsorption heats.

show abstract

Pure and mixed gas adsorption of CH4 and N2 on the metal–organic framework Basolite® A100 and a novel copper-based 1,2,4-triazolyl isophthalate MOF

Cited by 116 publications

References 65 publications

Separation of CH₄/N₂mixtures in metal–organic frameworks with 1D micro-channels

Separation of CH₄/N₂mixtures in metal–organic frameworks with 1D micro-channels

A DFT-D study of the interaction of methane, carbon monoxide, and nitrogen with cation-exchanged SAPO-34

Adsorption microcalorimetry of small molecules on various metal–organic frameworks

Contact Info

Product

Resources

About

Pure and mixed gas adsorption of CH4 and N2 on the metal–organic framework Basolite® A100 and a novel copper-based 1,2,4-triazolyl isophthalate MOF

Cited by 116 publications

References 65 publications

Separation of CH4/N2mixtures in metal–organic frameworks with 1D micro-channels

Separation of CH4/N2mixtures in metal–organic frameworks with 1D micro-channels

A DFT-D study of the interaction of methane, carbon monoxide, and nitrogen with cation-exchanged SAPO-34

Adsorption microcalorimetry of small molecules on various metal–organic frameworks

Contact Info

Product

Resources

About

Separation of CH₄/N₂mixtures in metal–organic frameworks with 1D micro-channels

Separation of CH₄/N₂mixtures in metal–organic frameworks with 1D micro-channels