Advances in Metal-Organic Frameworks MIL-101(Cr)

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(16), P. 9396 - 9396

Published: Aug. 20, 2022

MIL-101(Cr) is one of the most well-studied chromium-based metal–organic frameworks, which consists metal chromium ion and terephthalic acid ligand. It has an ultra-high specific surface area, large pore size, good thermal/chemical/water stability, contains unsaturated Lewis sites in its structure. Due to physicochemical properties structural characteristics, a wide range applications aqueous phase adsorption, gas storage separation, catalysis. In this review, latest synthesis research progress adsorption catalysis are reviewed.

Language: Английский

---

Stable Dicationic Covalent Organic Frameworks Manifesting Notable Structure-Enhanced CO₂ Capture and Conversion

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(19), P. 13021 - 13033

Published: Sept. 21, 2023

Covalent organic frameworks (COFs) are a class of promising porous crystalline materials for both capturing and converting CO2 into high-value-added products. However, long synthesis time the need cocatalyst restrict its potential conversion. Herein, bipyridine-based TAPT-BP-COF with high crystallinity as skeleton is rapidly synthesized within only 1 h by aid supercritical (scCO2) activation. Then, production dicationic TAPT-BP2+-COF accomplished quaternization reaction. The capture capacity improved 55.6% due to CO2-philic groups (imine triazine groups), polar (−OH), charged skeleton, suitable pore size, thus ensuring sufficient around catalytic active sites. Additionally, outstanding structure-enhanced conversion performance observed presence synergistic effect between –OH Br– in skeleton. rate-determining step cycloaddition significantly accelerated without any solvents cocatalysts compared individual [OH-BP]2+[Br]2– (BP2+ moiety). Specifically, efficiently generates cyclic carbonate heterogeneously catalyzing CO2-epoxide yield 99.3% has excellent stability that can be reused ten times significant activity reduction. This work provides novel perspective targeted design rapid COF-based catalysts efficiency durability

Language: Английский

---

Recent research progress of metal-organic frameworks (MOFs) based catalysts for CO2 cycloaddition reaction

Molecular Catalysis, Journal Year: 2023, Volume and Issue: 550, P. 113608 - 113608

Published: Oct. 7, 2023

Language: Английский

---

CO₂ Cycloaddition under Ambient Conditions over Cu–Fe Bimetallic Metal–Organic Frameworks

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(34), P. 13722 - 13730

Published: Aug. 4, 2023

Carbon dioxide cycloaddition into fine chemicals is prospective technology to solve energy crisis and environmental issues. However, high temperature pressure are usually required in the conventional reactions of CO2 with epoxides. Moreover, metal active sites play a vital role cycloaddition, but it still unclear. Herein, we select isostructural MOF-919-Cu-Fe MOF-919-Cu-Al as models promote performance clarify effects type on cycloaddition. The exposed Fe Cu Lewis acid reaches over 99.9% conversion selectivity at room 1 bar atmosphere, 3.0- 52.6-fold higher than those Al (33.8%) 1H-pyrazole-4-carboxylic acid, Fe, mixed system (1.9%), respectively. proposed mechanism demonstrated that Fe3+ facilitate ring opening epoxide activation boost reaction. This work provides new insight tune catalytic MOFs achieve for fixation.

Language: Английский

---

A magnetic pore-confined catalyst with ionic liquids supported on MOFs for the synthesis of aryl-oxazolidinones: design, performance, and recyclability

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 481, P. 148678 - 148678

Published: Jan. 11, 2024

Language: Английский

---

Implanting multi-functional ionic liquids into MOF nodes for boosting CO2 cycloaddition under solventless and cocatalyst-free conditions

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151657 - 151657

Published: April 25, 2024

Language: Английский

---

Synchronous activation for boosting CO2 cycloaddition over the DABCO-derived ionic liquid confined in MIL-101(Cr) nanocages

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112137 - 112137

Published: Feb. 5, 2024

Language: Английский

---

Ionic Liquid-Functionalized Metal–Organic Frameworks/Covalent–Organic Frameworks for CO₂ Capture and Conversion

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(8), P. 3443 - 3464

Published: Feb. 14, 2024

CO2 capture and conversion have garnered worldwide attention in view of the objective sustainable development carbon neutrality. Recently, ionic liquid-functionalized metal–organic frameworks (MOFs) or covalent–organic (COFs) (MOFs/COFs) offer a rising platform for effective separation from specific gas mixture into value-added chemicals. Benefiting synergistic effect offered by ILs MOFs/COFs, IL-MOFs/COFs exhibit better exceptional adsorption/catalytic performance than pristine MOFs/COFs ILs. Herein, review intends to establish primary database recently emerging conversion, covering functionalization strategies, interaction between representative applications, aiding rational design optimization novel with properties real-world application. Along this line, different systems (CO2/N2, CO2/CH4, CO2/C2H2) further multiproducts (cyclic carbonate, hydrocarbon, alcohol, others), along mechanism insight such processes are summarized discussed. Furthermore, challenges prospects topical fields been elaborated.

Language: Английский

---

Boosting catalytic performance for CO2 cycloaddition under mild condition via amine grafting on MIL-101-SO3H catalyst

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(1), P. 111852 - 111852

Published: Jan. 2, 2024

Language: Английский

---

Pyrazolium ionic liquids with multiple active sites immobilized on mesoporous MCM-41 for chemical fixation of CO₂ under mild conditions

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(19), P. 11448 - 11462

Published: Jan. 1, 2024

Novel dicationic pyrazolium ILs supported on MCM-41 were rationally fabricated. The optimized C 6 Pz–APTES/MCM-41 catalyst achieves superior catalytic performance toward the CO 2 cycloaddition by integrating HBDs (C3/C5–H) and mesoporous structures.

Language: Английский

---