Design of catalysts for selective CO2 hydrogenation

Nature Synthesis, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Language: Английский

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MOFs-based porous liquids for CO2 capture and utilization

Green Energy & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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In-situ restructuring of Ni-based metal organic frameworks for photocatalytic CO2 hydrogenation

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 15, 2025

As the global quest for sustainable energy keeps rising, exploring novel efficient and practical photocatalysts remains a research industrial urge. Particularly, metal organic frameworks were proven to contribute various stages of carbon cycle, from CO2 capture its conversion. Herein, we report photo-methanation activity three isostructural, nickel-based incorporating additional niobium, iron, aluminum sites, having demonstrated exceptional abilities thin air in previous reports. The niobium version exhibits highest performance, with CH4 conversion rate order 750–7500 µmol*gcatalyst−1*h−1 between 180 °C 240 °C, achieving 97% selectivity under light irradiation atmospheric pressure. in-depth characterization this framework before after catalysis reveals occurrence an in-situ restructuring process, whereas active surface species are formed photocatalytic conditions, thus providing comprehensive structure-performance correlations development photocatalysts. This study correlates structure photohydrogenation performance series isostructural Ni-based MOFs. Comparative situ restructuring, yielding different sites.

Language: Английский

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Use of Ce doping to modulate the interfacial electric field and enhance the photocatalytic performance of BiOCl/UiO-66 heterojunctions

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 115479 - 115479

Published: Jan. 16, 2025

Language: Английский

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Modified UiO‐66 and Its Applications in Environmental and Energy Fields

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Comprehensive Summary UiO‐66, a prototypical and stable zirconium‐based metal‐organic framework (MOF), consists of zirconium‐oxide clusters (Zr 6 O 4 (OH) ) benzene‐1,4‐dicarboxylate (BDC) organic linkers. It exhibits abundant active sites, high specific surface area, tunable pore structure, exceptional chemical thermal stability, making it highly advantageous for various practical applications. The integration functional components within UiO‐66 has been shown to optimize its electronic properties coordination environment, thereby enhancing multifunctionality catalytic performance. This review highlights the analysis structural characteristics explores modification strategies such as introduction linkers, selection metal nodes, defect engineering, doping with external components, discusses applications in environmental remediation energy‐related fields. Key Scientists

Language: Английский

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A Novel Ti₁₂‐Based Metal‐Organic Framework for Photocatalytic Hydrogen Evolution

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract A new microporous titanium‐based metal‐organic framework (Ti‐MOF), labeled as MIP‐209(Ti) (MIP: Materials from Institute of Porous Paris), features nitro terephthalate ligands and Ti 12 O 15 oxo‐clusters, revealed by continuous rotation electron diffraction (cRED). can be obtained using two different (1, 4‐BDC 2− ) derivatives such NO 2 ‐BDC 2Cl‐BDC in an eco‐friendly solvent, suggesting the isostructural versatility ‐MOFs. Alternatively, its Ti‐oxo‐cluster tuned, similarly to MIP‐177(Ti)‐LT bearing same sub‐unit. Typically, low percentage Cr 3+ doping (≤5 at%) favorably enhances water stability. MIP‐209(Ti‐Cr)‐NO shows a significant hydrogen production rate, with good reusability stability under simulated solar light irradiation. Compared benchmark Ti‐MOF IEF‐11, 5 at% has fourfold enhancement photocatalytic evolution splitting reaction (HER) during h presence methanol (5 812 µ mol/g cat against 1 391 ), well as, without any noble metal co‐catalyst, sixfold overall (OWS) (681 325 H , respectively, 94 53 respectively). This work represents leap forward synthesis Ti‐MOFs their practical applications.

Language: Английский

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Accelerated production of active oxygen species in MOFs-based porous ionic liquids: Greatly enhancing catalytic oxidation

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133315 - 133315

Published: April 1, 2025

Language: Английский

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Solar‐Assisted CO2 Methanation via Photocatalytic Sabatier Reaction by Calcined Titanium‐based Organic Framework Supported RuOx Nanoparticles

ChemCatChem, Journal Year: 2024, Volume and Issue: 16(22)

Published: Aug. 10, 2024

Abstract CO 2 reduction by sunlight under mild reaction conditions is a research area of increasing interest expected to favor decarbonization and produce fuels chemicals in the circular economy. We hereby report on development series titanium oxide‐based solids produced calcination MIL‐125(Ti)‐NH decorated with RuO x nanoparticles (1 wt %) material at temperatures from 350 650 °C used as photocatalysts for methanation simulated irradiation (45 mW/cm ) <200 1.5 atm total pressure. The synthesized highest photoactivity (4.73 mmol g −1 CH 4 22 h an apparent quantum yield 400, 500 750 nm 0.76, 0.65 0.54 %, respectively), comparing favorably activities other MOF‐based materials reported so far. Insights into material's photocatalytic performance study possible pathways during were obtained electrochemical impedance, electron spin resonance, photoluminescence situ FT‐IR spectroscopies together transient photocurrent hydrogen temperature programed desorption measurements. showed possibility using precursors develop metal oxide enhanced solar‐driven gaseous photomethanation.

Language: Английский

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Photothermal Catalytic Degradation of VOCs: Mode，System and Application

Chemistry - An Asian Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 28, 2024

Human production and living processes emit excessive VOCs into the atmosphere, posing significant threats to both human health environment. The photothermal catalytic oxidation process is an organic combination of photocatalysis thermocatalysis. Utilizing degradation can achieve better activity at lower temperatures, resulting in more rapid thorough these compounds. Photothermal catalysis has been increasingly applied treatment atmospheric due its many advantages. A brief introduction on three modes presented. Depending main driving force reactions, they be categorized thermal-assisted (TAPC), photo-assisted thermal (PATC) photo-driven (PDTC). commonly used catalyst design methods reactor types for are also briefly introduced. This paper then focuses recent developments specific applications different their corresponding principles. Finally, problems challenges facing VOC through this method summarized, along with prospects future research.

Language: Английский

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Employing facile molten-salt strategy towards erbium ornamentation over CuInS2 for upgrading visible-light-driven hydrogen production and Cr(VI) reduction

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114788 - 114788

Published: Nov. 13, 2024

Language: Английский

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