A novel water-stable MOF Zn(Py)(Atz) as heterogeneous catalyst for chemical conversion of CO2 with various epoxides under mild conditions

Lan, Jianwen; Qu, Yan; Zhang, Xiao; Ma, Haoran; Xu, Ping; Sun, Jianmin

doi:10.1016/j.jcou.2019.09.019

Cited by 79 publications

(41 citation statements)

References 46 publications

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“…The synthesis and crystal structure of Zn 2 (Pydc)(Ata) 2 ( 1 ) was first reported by Sun et al [ 38 ]. Compound 1 features uncoordinated pyridyl and amino groups on the pore surface that can serve as recognition sites for interactions with guest molecules and is highly stable up to 400 °C and tolerant of acidic (pH ≥ 2) and basic (pH ≤ 14) aqueous solution conditions, which attracted our interest for the investigation of its application for selective gas separation.…”

Section: Resultsmentioning

confidence: 99%

“…The method for the small scale synthesis of 1 in a autoclave can be found in reference [ 38 ] and is summarized here. To a 25 mL autoclave were added 148.7 mg (0.5 mmol) of Zn(NO 3 ) 2 ·6H 2 O, 42.0 mg (0.5 mmol) of HAta, 83.6 mg (0.5 mmol) of H 2 Pydc, followed by a stir bar.…”

Section: Methodsmentioning

confidence: 99%

“…Then the stir bar was removed and the autoclave was heated to 100 °C and kept at this temperature for 72 h. When cooled to room temperature, slightly yellow crystals were obtained. Then the crystals were collected by filtration, washed with DMF (3 mL × 2) and dried under vacuum at 60 °C for 24 h. According to [ 38 ], the obtained solid product has a composition of Zn 2 (Pydc)(Ata) 2 ·DMF·2H 2 O. Only by heating at 200 °C under high vacuum can the solvent guest molecules in the pores be removed.…”

Section: Methodsmentioning

confidence: 99%

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Gram-Scale Synthesis of an Ultrastable Microporous Metal-Organic Framework for Efficient Adsorptive Separation of C2H2/CO2 and C2H2/CH4

Jiang

Sun

et al. 2021

Molecules

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A highly water and thermally stable metal-organic framework (MOF) Zn2(Pydc)(Ata)2 (1, H2Pydc = 3,5-pyridinedicarboxylic acid; HAta = 3-amino-1,2,4-triazole) was synthesized on a large scale using inexpensive commercially available ligands for efficient separation of C2H2 from CH4 and CO2. Compound 1 could take up 47.2 mL/g of C2H2 under ambient conditions but only 33.0 mL/g of CO2 and 19.1 mL/g of CH4. The calculated ideal absorbed solution theory (IAST) selectivities for equimolar C2H2/CO2 and C2H2/CH4 were 5.1 and 21.5, respectively, comparable to those many popular MOFs. The Qst values for C2H2, CO2, and CH4 at a near-zero loading in 1 were 43.1, 32.1, and 22.5 kJ mol−1, respectively. The practical separation performance for C2H2/CO2 mixtures was further confirmed by column breakthrough experiments.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Gram-Scale Synthesis of an Ultrastable Microporous Metal-Organic Framework for Efficient Adsorptive Separation of C2H2/CO2 and C2H2/CH4

Jiang

Sun

et al. 2021

Molecules

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“…The heterogeneous catalysts have higher catalytic performance, easier separation, and higher reusability than homogeneous ones [27,28]. It is well reported that heterogeneous catalysts based on metal-organic frameworks (MOFs) can efficiently proceed the topic reaction (Scheme 1) [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50]. Porous MOFs composed of metal ions and ligands have been widely used as catalysts for many chemical reactions due to their crystalline nature, tunable structure, highly specific surface area, good thermal stability, and easier mass transfer of reactants [45,[51][52][53].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Performance of CPM-200-In/Mg in the Cycloaddition of CO2 and Epoxides

Choe

Park

2021

Catalysts

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Crystalline porous materials (CPM)-200-In and CPM-200-In/Mg metal-organic frameworks (MOFs) were synthesized by a solvothermal method and were characterized by using powder X-ray diffraction (PXRD), FT-IR, Brunauer–Emmett–Teller (BET), temperature programmed desorption (TPD), TGA, XPS, and SEM-EDS. They were used as heterogeneous catalysts for the cycloaddition of CO2 with epoxides and found to be highly efficient toward the cycloaddition reaction at moderate reaction conditions under solvent-free conditions. The catalyst was easily separated by a simple filtration and can be reused up to five consecutive times without any considerable decrease of its initial activity. CPM-200-In/Mg showed excellent catalytic performance in the cycloaddition reaction due to the synergistic role of the acidic sites and basic sites. A plausible reaction mechanism for the CPM-200-In/Mg MOF catalyzed cycloaddition reaction is proposed based on the experimental results and our previously reported DFT (Density Functional Theory) studies.

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“…In order to create a cost-effective and efficient catalyst for VOC oxidation, scientists are investigating such metals as Cr [ 10 , 11 ], Zn [ 12 ], Fe, Co [ 13 , 14 , 15 ], Cu [ 16 , 17 ], Mn [ 18 ], and others. One of the widely studied metals is chromium, which not only possesses efficient redox properties but is also economically attractive due to the low cost [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Thermal Stability, and Catalytic Activity of Compounds Formed in CaO-SiO2-Cr(NO3)3-H2O System

et al. 2020

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In this work, the thermal stability, microstructure, and catalytic activity in oxidation reactions of calcium silicate hydrates formed in the CaO-SiO2-Cr(NO3)3-H2O system under hydrothermal conditions were examined in detail. Dry primary mixture with a molar ratio of CaO/SiO2 = 1.5 was mixed with Cr(NO3)3 solution (c = 10 g Cr3+/dm3) to reach a solution/solid ratio of the suspension of 10.0:1. Hydrothermal synthesis was carried out in unstirred suspensions at 175 °C for 16 h. It was determined that, after treatment, semicrystalline calcium silicate hydrates C-S-H(I) and/or C-S-H(II) with incorporated Cr3+ ions (100 mg/g) were formed. The results of in situ X-ray diffraction and simultaneous thermal analyses showed that the products were stable until 500 °C, while, at higher temperatures, they recrystallized to calcium chromate (CaCrO4, 550 °C) and wollastonite (800–850 °C). It was determined that both the surface area and the shape of the dominant pore changed during calcination. Propanol oxidation experiments showed that synthetic semicrystalline calcium silicate hydrates with intercalated chromium ions are able to exchange oxygen during the heterogeneous oxidation process. The obtained results were confirmed by XRD, STA, FT-IR, TEM, SEM, and BET methods, and by propanol oxidation experiments.

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A novel water-stable MOF Zn(Py)(Atz) as heterogeneous catalyst for chemical conversion of CO2 with various epoxides under mild conditions

Cited by 79 publications

References 46 publications

Gram-Scale Synthesis of an Ultrastable Microporous Metal-Organic Framework for Efficient Adsorptive Separation of C2H2/CO2 and C2H2/CH4

Gram-Scale Synthesis of an Ultrastable Microporous Metal-Organic Framework for Efficient Adsorptive Separation of C2H2/CO2 and C2H2/CH4

Catalytic Performance of CPM-200-In/Mg in the Cycloaddition of CO2 and Epoxides

Microstructure, Thermal Stability, and Catalytic Activity of Compounds Formed in CaO-SiO2-Cr(NO3)3-H2O System

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