A novel metal-organic framework for high storage and separation of acetylene at room temperature

Duan, Xing; Wang, Huizhen; Ji, Zhenguo; Cui, Yuanjing; Yang, Yu; Qian, Guodong

doi:10.1016/j.jssc.2016.06.015

Cited by 37 publications

(15 citation statements)

References 32 publications

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“…3 Recently, there has been an increasing interest in the study of MOFs for acetylene storage, 4 and the introduction of organic functional groups is an efficient approach to increase the gas binding within pores. MOFs incorporating −OH, 5 −NH 2 , 6 −CONH–, 7 –C≡C–, 8 R—CO—R, 9 −R, 10 −OR, 11 pyridine-, 12 pyrimidine-, 13 pyrazine-, 13 pyridazine-, 13 and naphthalene 14 groups have been tested for acetylene adsorption. However, molecular insights into the precise role of these moieties on the binding of acetylene is largely lacking, thus restricting the design of improved materials.…”

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confidence: 99%

Optimal Binding of Acetylene to a Nitro-Decorated Metal–Organic Framework

et al. 2018

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We report the first example of crystallographic observation of acetylene binding to −NO2 groups in a metal–organic framework (MOF). Functionalization of MFM-102 with −NO2 groups on phenyl groups leads to a 15% reduction in BET surface area in MFM-102-NO2. However, this is coupled to a 28% increase in acetylene adsorption to 192 cm3 g–1 at 298 K and 1 bar, comparable to other leading porous materials. Neutron diffraction and inelastic scattering experiments reveal the role of −NO2 groups, in cooperation with open metal sites, in the binding of acetylene in MFM-102-NO2.

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confidence: 99%

Optimal Binding of Acetylene to a Nitro-Decorated Metal–Organic Framework

et al. 2018

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“…On the other hand, hydrocarbon-selective MOFs require additional processing and purification steps since CO2 is coadsorbed by the adsorbent. 36,50,51 (Table S11). While uptake ratios provide an excellent indication of preferential affinity, the selectivity for a particular component of a gas mixture can be quantified by Ideal Adsorbed Solution Theory (IAST) calculations.…”

Section: Selectivity Of Muf-16 Towards Co2 and Gas Separationsmentioning

confidence: 99%

Selective Capture of Carbon Dioxide from Hydrocarbons Using a Metal-Organic Framework: Relevance to the Purification of Natural Gas and Acetylene

Qazvini¹,

Telfer²

2020

Preprint

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Efficient and sustainable methods for carbon dioxide (CO2) capture are essential. Its atmospheric concentration must be reduced to meet climate change targets, and its removal from sources such as chemical feedstocks is vital. While mature technologies involving chemical reactions that absorb CO2 exist, they have many drawbacks. Porous materials with void spaces that are complementary in size and electrostatic potential to CO2 offer an alternative. In these materials, the molecular CO2 guests are trapped by noncovalent interactions, hence they can be recycled by releasing the CO2 with a low energy penalty. Capacity and selectivity are the twin challenges for such porous adsorbents. Here, we show how a metal-organic framework, termed MUF-16 (MUF = Massey University Framework), is a universal adsorbent for CO2 that sequesters large quantities of CO2 from a broad palette of gas streams with record selectivities over competing gases. The crystallographically-determined position of the CO2 molecules captured in the framework pores illustrate how complementary noncovalent interactions envelop CO2 while repelling other guest molecules. The low affinity of the pore environment for other gases underpins the strikingly high selectivity of MUF-16 for CO2 over methane, nitrogen, hydrogen, acetylene, ethylene, ethane, propylene and propane. Breakthrough gas separations under dynamic conditions benefit from short time lags in the elution of the weakly-adsorbed component to deliver a repertoire of high-purity products. MUF-16 is an inexpensive, robust, recyclable adsorbent that is universally applicable to the removal of CO2 from sources such as natural gas, syngas, flue gas and chemical feedstocks.

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“…In recent years, metal-organic frameworks (MOFs) have attracted wide research attention because of their high surface area, permanent porosity, special tunable topology, and designable chemical functionality [2][3][4]. MOFs have been exploited in applications as diverse as gas storage/separation [5][6][7][8][9], heterogenerous catalysis [4,[10][11][12][13][14], and pollutant adsorption [15][16][17][18][19]. Although MOFs are promising new materials for different applications, most of MOFs are microporous materials.…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Anionic Organic Dyes from Aqueous Solution with Cu‐Organic Frameworks

Sun

Duan

2019

Chem Eng & Technol

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Cu-metal-organic frameworks (Cu-MOFs) were synthesized in one step using copper acetate, glutamic acid, and small-molecular organic amines at room temperature. Organic amines served as modulators to modify the structure of Cu-MOFs. Characterization results proved that the addition of modulators changes the surface morphology. Batch adsorption data indicated high adsorption capacities for anionic organic dyes with glutamic-Cu-triethylamine (Glu-Cu-TA), higher than that of most MOFs reported. An acid pH was the optimum adsorption parameter. The easy regeneration of recycled Cu-MOFs suggested there were weak intermolecular interactions between Cu-MOFs and dyes. The main adsorption forces included electrostatic interaction, ion exchange, p-p complexation, and hydrogen bonds.

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A novel metal-organic framework for high storage and separation of acetylene at room temperature

Cited by 37 publications

References 32 publications

Optimal Binding of Acetylene to a Nitro-Decorated Metal–Organic Framework

Optimal Binding of Acetylene to a Nitro-Decorated Metal–Organic Framework

Selective Capture of Carbon Dioxide from Hydrocarbons Using a Metal-Organic Framework: Relevance to the Purification of Natural Gas and Acetylene

Efficient Removal of Anionic Organic Dyes from Aqueous Solution with Cu‐Organic Frameworks

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