Microwave synthesis and characterization of MOF-74 (M=Ni, Mg) for gas separation

Wu, Xiaofei; Bao, Zongbi; Yuan, Bin; Wang, Jun; Sun, Yingqiang; Luo, Hongmei; Deng, Shuguang

doi:10.1016/j.micromeso.2013.06.023

Cited by 225 publications

(132 citation statements)

References 57 publications

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“…The feed flow rate was 5 cm Figure 2 shows X-ray diffraction pattern of Mg-MOF-74 crystals produced in this study after solvent exchange in methanol and drying at room temperature. The formation of Mg-MOF-74 was confirmed by the presence of the characteristic peaks at 6.7°, 11.7°and 18°of MOF-74 in each XRD pattern 21,31 . In addition, the broad peaks observed in XRD pattern for the synthesis with DMF only (F1) suggests that nano-crystals are produced.…”

Section: Single Gas Permeation Measurementsmentioning

confidence: 87%

“…Due to the high affinity for CO2 of Mg-MOF-74, adsorption studies have shown the material to be highly selective for CO2 over CH4 21 . However, studies of the diffusion kinetics of CH4 and CO2 through the MOF show that CH4 travels through the pores 5 times faster 20 .…”

Section: Single Gas Permeation Measurementsmentioning

confidence: 99%

“…The M-MOF-74 series (where M represents a metal ion such as Ni 2+ ) has garnered sizable research interest due to high CO2 uptakes during adsorption [20][21][22] . The magnesium based Mg-MOF-74 has demonstrated the highest CO2 uptake at low to moderate pressures of any solid adsorbent 23 .…”

Section: Introductionmentioning

confidence: 99%

“…Methodologies developed to crystal size control including microwave and ultrasonic syntheses 21,22,32 and room temperature precipitation. The size of Zn-MOF-74 crystals were altered by changing the water/ethanol ratio of a reaction solution containing a sodium hydroxide additive in a solvothermal synthesis, with crystal sizes of 1 and 5 µm obtained 33 .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Controlling the size and shape of Mg-MOF-74 crystals to optimise film synthesis on alumina substrates

Campbell

Tokay

2017

Microporous and Mesoporous Materials

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Section: Single Gas Permeation Measurementsmentioning

confidence: 87%

Section: Single Gas Permeation Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Controlling the size and shape of Mg-MOF-74 crystals to optimise film synthesis on alumina substrates

Campbell

Tokay

2017

Microporous and Mesoporous Materials

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“…Recent studies have developed novel and efficient methods for the alternative synthesis of MOFs. [2] These methods include microwave-assisted, [3] mechanochemical, [4] electrochemical, [5] ionothermal, [6] and near-critical water-based [7] strategies. These solvent-minimization and time-saving approaches exhibit valuable advantages for the effective synthesis of various MOFs.…”

Section: Introductionmentioning

confidence: 99%

The Metal–Organic Framework MIL‐53(Al) Constructed from Multiple Metal Sources: Alumina, Aluminum Hydroxide, and Boehmite

et al. 2015

Chemistry A European J

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Three aluminum compounds, namely alumina, aluminum hydroxide, and boehmite, are probed as the metal sources for the hydrothermal synthesis of a typical metal-organic framework MIL-53(Al). The process exhibits enhanced synthetic efficiency without the generation of strongly acidic byproducts. The time-course monitoring of conversion from different aluminum sources into MIL-53(Al) is achieved by multiple characterization that reveals a similar but differentiated crystallinity, porosity, and morphology relative to typical MIL-53(Al) prepared from water-soluble aluminum salts. Moreover, the prepared MIL-53(Al) constructed with the three insoluble aluminum sources exhibit an improved thermal stability of up to nearly 600 °C and enhanced yields. Alumina and boehmite are more preferable than aluminum hydroxide in terms of product porosity, yield, and reaction time. The adsorption performances of a typical environmental endocrine disruptor, dimethyl phthalate, on the prepared MIL-53(Al) samples are also investigated. The improved structural stability of MIL-53(Al) prepared from these alternative aluminum sources enables double-enhanced adsorption performance (up to 206 mg g(-1)) relative to the conventionally obtained MIL-53(Al).

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Metal–Organic Framework Materials for the Separation and Purification of Light Hydrocarbons

2019

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The separation and purification of light hydrocarbons (LHs) mixtures is one of the most significantly important but energy demanding processes in the petrochemical industry. As an alternative technology to energy intensive traditional separation methods, such as distillation, absorption, extraction, etc., adsorptive separation using selective solid adsorbents could potentially not only lower energy cost but also offer higher efficiency. The need to develop solid materials for the efficiently selective adsorption of LHs molecules, under mild conditions, is therefore of paramount importance and urgency. Metal–organic frameworks (MOFs), emerging as a relatively new class of porous organic–inorganic hybrid materials, have shown promise for addressing this challenging task due to their unparalleled features. Herein, recent advances of using MOFs as separating agents for the separation and purification of LHs, including the purification of CH4, and the separations of alkynes/alkenes, alkanes/alkenes, C5–C6–C7 normal/isoalkanes, and C8 alkylaromatics, are summarized. The relationships among the structural and compositional features of the newly synthesized MOF materials and their separation properties and mechanisms are highlighted. Finally, the existing challenges and possible research directions related to the further exploration of porous MOFs in this very active field are also discussed.

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Microwave synthesis and characterization of MOF-74 (M=Ni, Mg) for gas separation

Cited by 225 publications

References 57 publications

Controlling the size and shape of Mg-MOF-74 crystals to optimise film synthesis on alumina substrates

Controlling the size and shape of Mg-MOF-74 crystals to optimise film synthesis on alumina substrates

The Metal–Organic Framework MIL‐53(Al) Constructed from Multiple Metal Sources: Alumina, Aluminum Hydroxide, and Boehmite

Metal–Organic Framework Materials for the Separation and Purification of Light Hydrocarbons

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