Waste and Biomass Valorization, Год журнала: 2025, Номер unknown
Опубликована: Апрель 14, 2025
Язык: Английский
Advanced Materials, Год журнала: 2024, Номер 36(38)
Опубликована: Июль 23, 2024
Abstract Atomically dispersed active sites in a photocatalyst offer unique advantages such as locally tuned electronic structures, quantum size effects, and maximum utilization of atomic species. Among these, asymmetric dual‐sites are particular interest because their charge distribution generates local built‐in electric potential to enhance separation transfer. Moreover, the dual provide flexibility for tuning complex multielectron multireaction pathways, CO 2 reduction reactions. The coordination opens new possibilities engineering structure–activity–selectivity relationship. This comprehensive overview discusses efficient sustainable photocatalysis processes photocatalytic reduction, focusing on strategic active‐site design future challenges. It serves timely reference development conversion processes, specifically exploring here exemplified by into valuable chemicals.
Язык: Английский
Процитировано
32
Chemical Engineering Journal, Год журнала: 2024, Номер 487, С. 150369 - 150369
Опубликована: Март 12, 2024
Язык: Английский
Процитировано
28
Results in Surfaces and Interfaces, Год журнала: 2024, Номер unknown, С. 100381 - 100381
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
24
Chemical Society Reviews, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
The thermocatalytic conversion of CO2 with green or blue hydrogen into valuable energy and commodity chemicals such as alcohols, olefins, aromatics emerges one the most promising strategies for mitigating global warming concerns in future. This process can follow either a CO2-modified Fischer-Tropsch synthesis route methanol-mediated route, latter being favored its high product selectivity beyond Anderson-Schulz-Flory distribution. Despite progress CO2-led over bifunctional metal/zeolite catalysts, challenges persist developing catalysts both activity due to complexity hydrogenation reaction networks difficulty controlling C-O bond activation C-C coupling on multiple active sites within zeolites. Moreover, different construction proximity modes bifunctionality involving redox-based metallic acidic zeolite have been explored, which not systematically reviewed derive reliable structure-reactivity relationships. To bridge this "knowledge gap", review, we will provide comprehensive critical overview contemporary research zeolite-confined metal alcohol zeolite-based tandem/cascade catalytic systems C2+ hydrocarbons via route. Accordingly, special emphasis be placed evaluating how confinement effects "redox-acid" influence outcomes, particularly regarding selectivity, has also analyzed from mechanistic standpoint. review examine synergistic interactions among various catalyst components that govern catalysis, offering insights rational design new improved systems. By discussing current recognizing future opportunities using aims contribute advancement sustainable efficient processes valorization.
Язык: Английский
Процитировано
2
Discover Nano, Год журнала: 2025, Номер 20(1)
Опубликована: Фев. 11, 2025
Population growth, urbanization, industrialization, and increased socioeconomic activities have escalated carbon dioxide (CO2) formation concentration in the atmosphere. Increased generation release of CO2 into atmosphere exacerbates global warming impedes environmental sustainability. One strategies to combat unpleasant impact is conversion useful products. This study reviews benefits, drawbacks, recommendations for effectively utilizing conventional, hybrid, novel technologies converting energy chemical The deficiencies noticed with chemical, thermal, biological, catalytic (CTs) necessitated use hybrid such as biochemical, electrochemical, photocatalytic, plasma chemical. posits that development deployment CTs like bio-electrochemical, photo-electrochemical, artificial photosynthesis will advance research domain revolutionize product formation. transformation renewable fuels methane, syngas, C2 products methanol, formic acid, dimethyl carbonate, oxygenates, formaldehyde, hydrocarbons is, eco-friendly, reduces air pollution, mitigates climate change, supports security, provides valuable feedstocks industries. recommends optimization process parameters reactor design configurations, funding, provision regulatory framework support, partnerships among academia, industry players, government agencies achieve cost reduction, reduce impacts, drawbacks associated CTs.
Язык: Английский
Процитировано
2
ChemElectroChem, Год журнала: 2024, Номер 11(9)
Опубликована: Янв. 29, 2024
Abstract The ionic solvents, including both liquids (ILs) and deep eutectic solvents (DES), are deeply studied for their potential in the carbon dioxide (CO 2 ) capture its further electrochemical conversion using different electrocatalysts. aim of this review is to present critically compare role ILs DES activation CO reduction reaction RR) suppression hydrogen evolution (HER). Therefore, most relevant advances use these RR, either as neat medium or electrolyte molecular have been summarized discussed. A special focus has made on comparing current density, overpotential, faradaic efficiency products selectivity RR presence relaying those results with chemical composition. Herein, recent strategies reported literature based enhancing electrocatalytic reviewed, some new perspectives immobilized at electrode surface
Язык: Английский
Процитировано
11
Carbon Future, Год журнала: 2024, Номер 1(2), С. 9200011 - 9200011
Опубликована: Апрель 1, 2024
Conversion of carbon dioxide (CO2) to C1 products such as monoxide (CO) is a critical step towards valorization. The conversion has been largely carried out through the reverse water gas shift (RWGS) reaction using noble metal catalysts or copper-based nanostructures. Similarities in electronic structures between beta phase molybdenum carbides (β-Mo2C) and platinum-group metals make them promising alternatives traditional catalysts. In this work, we studied effect oxide supports (MOx, M = Al, Ce, Mg, Si, Ti) on formation catalytic properties β-Mo2C nanoparticle The β-Mo2C/SiO2 catalyst exhibited mass activity 372 μmolCO2 g-1Mo2C s-1 at 400 °C 1109 s-1 at 600 for CO2. also maintained selectivity showed structural stability on-stream study. enhanced performance could be attributed size nanocatalysts (4.7 nm), whereas related interaction with SiO2 low H2:CO2 feed ratio. This work highlights application amorphous silica preparing carbide nanocatalysts. rich defects surface vacancies support greatly facilitate high-rate highly selective processes valorization
Язык: Английский
Процитировано
10
ChemSusChem, Год журнала: 2024, Номер unknown
Опубликована: Апрель 15, 2024
Over the past decades, CO
Язык: Английский
Процитировано
10
Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112790 - 112790
Опубликована: Апрель 18, 2024
Язык: Английский
Процитировано
9
The Canadian Journal of Chemical Engineering, Год журнала: 2025, Номер unknown
Опубликована: Янв. 5, 2025
Abstract The work is dedicated to the encapsulation of active ruthenium species for hydrogenation carbon dioxide formic acid in porous hollow spheres silica. were obtained via a sol–gel‐based reaction with 1‐dodecyl amine and cetyltrimethylammonium bromide as templates form both void nanospaces shells sphere support. metallic encapsulated through immersion or incipient wetness impregnation method methanolic solution species, following activation process under solvothermal conditions. results transmission electron microscopy (TEM) X‐ray diffraction (XRD) measurements indicate that highly dispersed effectively by adding an aqueous ammonia during process, improvement catalytic activity yield was observed presence catalyst prepared appropriate amount ammonia. dramatically improved ruthenium‐encapsulated due including on surface spheres.
Язык: Английский
Процитировано
1