Tuning 1-hexene/n-hexane adsorption on MOF-74 via constructing Co-Mg bimetallic frameworks

“…Sun et al . (2019b) synthesized a series of bimetallic, Co x Mg 1− x –MOF-74 ( x = 0–1.0) using a facile solvothermal method. The samples were thoroughly characterized by XRD, N 2 adsorption, TG-DSC, SEM, EDS, FT-IR, and XPS.…”

Section: Adsorption Separation Of Liquid-phase Alkane/alkene Mixturesmentioning

confidence: 99%

Section: Adsorption Separation Of Liquid-phase Alkane/alkene Mixturesmentioning

confidence: 99%

“…Specifically, nearroom temperature solution calorimetry with different solvents and low-temperature heat capacity measurements were integrated to reveal the enthalpy, entropy, and free energy evolutions for MOFs with ultrahigh porosity, simplest structure, and true polymorphism. In addition, from a chemical engineering perspective, we briefly introduce the ongoing research on molecular guest-MOF interactions in the Sun group at the East China University of Science and Technology and the Wu group at Washington State University, in which we performed a series studies using MOF as sorbents for adsorptive separation of petroleum compounds, such as alkane/alkene mixtures and organosulfur species (Sun et al, 2019a(Sun et al, , 2019b.…”

Section: Introductionmentioning

confidence: 99%

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Recent advances in experimental thermodynamics of metal–organic frameworks

Sun

2019

Powder Diffr.

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This mini review summarizes recent advances in experimental thermodynamics of metal–organic frameworks (MOFs). Taking advantage of the development in mechanochemistry, near-room temperature solution calorimetry, and low-temperature heat capacity measurements, the energetic landscape, entropy trends, and Gibbs free energy evolutions of MOFs with true polymorphism [Zn(MeIm)2, Zn(EtIm)2, and Zn(CF3Im)2] as framework topology varies were thoroughly explored by integrated calorimetric and computational methodologies. In addition, the formation enthalpies of MOFs with ultrahigh porosity (MOF-177 and UMCM-1) and the simplest structure (metal formates) have been determined. The studies summarized below highlight the complex interplays among interrelated compositional, chemical, and topological (structural) factors in the determination of the thermodynamic parameters of MOFs.

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“…3,13,17 Indeed, successful adsorptive separation largely relies on the performance of adsorbents employed. During the past several decades, a variety of porous materials, including aluminosilicate zeolites, 12,18,19 carbon molecular sieves, 20,21 and metal -organic frameworks (MOFs), 22,23 have been extensively explored, tested and applied for adsorptive separation of olefin/paraffin mixtures. Synthetic zeolites remain the most popularly utilized adsorbents in various industrial processes due to their high energetic and structrual stability, and low cost.…”

Section: Introductionmentioning

confidence: 99%

In Situ Hydrothermal Conversion of Silica Gel Precursors to Binderless Zeolite X Pellets for Enhanced Olefin Adsorption

et al.

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Binderless zeolite X pellets were "one-pot" synthesized via in situ hydrothermal conversion of silica gel precursors in sodium aluminate solution. The conversion and crystallization kinetics were investigated as a function of synthesis time with a spectrum of techniques. It is found that four-membered (4R) and six-membered rings (6R) are formed by linking diffused Al species with dissolved Si species during the aging period, while the zeolite X frameworks are constructed via reorganization of β cages with double six-membered rings (D6R) in crystallization process. Furthermore, GCMC simulation was conducted to elucidate 1-hexene adsorption in zeolite X as ion species and exchange degree vary, in which adsorption capacity and guest -host interaction energy were evaluated. Incorporation of Mg2+ and Ca2+ enables higher adsorption capacity, while introduction of Co2+, Ni2+, Cu2+ and Zn2+ boosts adsorption and enhances interaction energy.

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Tuning 1-hexene/n-hexane adsorption on MOF-74 via constructing Co-Mg bimetallic frameworks

Cited by 65 publications

References 51 publications

Molecular simulation of energy storage of R1234yf, R1234ze(z), R32, and their mixtures in Co-MOF-74 materials

Molecular simulation of energy storage of R1234yf, R1234ze(z), R32, and their mixtures in Co-MOF-74 materials

Recent advances in experimental thermodynamics of metal–organic frameworks

In Situ Hydrothermal Conversion of Silica Gel Precursors to Binderless Zeolite X Pellets for Enhanced Olefin Adsorption

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