Selectivity control by zeolites during methanol-mediated CO₂ hydrogenation processes

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

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Cobalt Catalysts Enable Selective Hydrogenation of CO₂ toward Diverse Products: Recent Progress and Perspective

The Journal of Physical Chemistry Letters, Год журнала: 2021, Номер 12(43), С. 10486 - 10496

Опубликована: Окт. 22, 2021

Selective hydrogenation of carbon dioxide (CO2) into value-added chemicals has aroused great interest. The chemical inertness CO2 and diverse reaction pathways usually require the construction enabled catalysts. To date, cobalt (Co) catalysts characteristic metallic and/or divalent Co components show potential for hydrogenation. better regulate hydrogenation, it is necessary to summarize current progress selective CO2. In this Perspective, first, methane over sites introduced. Second, methanol C2+ alcohols discussed by constructing mixed-valent sites. Third, light olefins C5+ liquid fuels cobalt-containing hybrid Fourth, paths are illustrated. Finally, challenges prospects cobalt-based nanocatalysts proposed.

Язык: Английский

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Distance for Communication between Metal and Acid Sites for Syngas Conversion

ACS Catalysis, Год журнала: 2022, Номер 12(15), С. 8793 - 8801

Опубликована: Июль 8, 2022

Unraveling the proximity influence between different sites in tandem catalysis is particularly challenging. Herein, we evaluate distance effect on communication metal and acid a methanol-mediated syngas conversion system. A series of catalysts composed ZnZrOx zeolites with levels from millimeter scale to nanoscale were evaluated olefins (STO), gasoline (STG), aromatics (STA) reactions. The requirements are dependent diffusivity reaction intermediates formation mechanism products. STO STG reactions follow simple mechanism, which not sensitive as long gaseous methanol could fast diffuse sites. Whereas synergistic for evidenced, i.e., dehydro-aromatization step must be promoted by intimate contact eliminate surface hydrogen species recombinative desorption.

Язык: Английский

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Catalytic Conversion of CO₂ over Atomically Precise Gold-Based Cluster Catalysts

ACS Catalysis, Год журнала: 2022, Номер 12(17), С. 10638 - 10653

Опубликована: Авг. 16, 2022

There are obstacles with using conventional nanoparticle catalysts for developing atomic-by-atom tailoring of active sites in the heterogeneous catalysis field. However, atomically precise metal clusters formulas and crystallographically determined structures, which may build a bridge between single atoms nanoparticles, become possible to unravel respective contributions every atom cluster its overall catalytic performances structure–property relationship at an atomic-precision level. In this Review, we will first describe recent advances CO2 electronic reduction catalyzed by Au-based including pure gold alloys. We then put particular emphasis on chemical fixation into organic molecules, such as alkyne, epoxide, amine, over catalysts. Additionally, concisely introduce discovery selectivity hydrogenation toward C1 C2 products. Finally, provide our perspectives some issues conversion future research.

Язык: Английский

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Tuning product selectivity in CO₂hydrogenation over metal-based catalysts

Chemical Science, Год журнала: 2021, Номер 12(44), С. 14660 - 14673

Опубликована: Янв. 1, 2021

Conversion of CO

Язык: Английский

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Strong Interaction over Ru/Defects‐Rich Aluminium Oxide Boosts Photothermal CO₂ Methanation via Microchannel Flow‐Type System

Advanced Energy Materials, Год журнала: 2022, Номер 12(31)

Опубликована: Июль 5, 2022

Abstract The CO 2 methanation is an important component of the “power to gas” strategy, and Ru‐Al O 3 catalyst considered be a state‐of‐the‐art for this reaction. Conventional prepared by wet impregnation. Due weak interactions between Ru Al , construction controllable interface metal substrate still challenging. In work, UV pulse laser used controllably construct ultra‐small nanoparticles on defects‐rich 3‐x ‐L in situ grown foil (Ru‐Al ‐L) effective photothermal methanation. catkin‐like fluff efficiently traps light ensure adsorption ‐L. defects anchors Ru. A Strong‐Metal‐Support‐Interaction (SMSI) effect constructed exhibits remarkable catalytic performance (CH 4 yield 12.35 mol g −1 h ) closed batch system. Then innovative flow reactor established based one‐piece microchannel catalyst. Thanks local pressure edge microchannels, CH further enhanced 14.04 . Finally, outdoor setup demonstrates feasibility 18.00 mmol min ). This work provides novel perspectives multi‐level micro/nanostructures integrated catalysts

Язык: Английский

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Recent advances in thermocatalytic hydrogenation of carbon dioxide to light olefins and liquid fuels via modified Fischer-Tropsch pathway

Journal of CO2 Utilization, Год журнала: 2022, Номер 67, С. 102321 - 102321

Опубликована: Ноя. 10, 2022

With the rapid economic development, excessive use of fossil fuels and massive emission carbon dioxide (CO2), as a greenhouse gas, have aroused series environment issues. Direct CO2 hydrogenation to value-added chemicals using renewable energy is an effective strategy reduce dependence on fuels. Among these chemicals, light olefins liquid attracted attention both academic industry one most important in our daily life. Light can be produced from via modified Fischer-Tropsch synthesis (FTs) route or methanol-mediated process. Compared with process, FTs favorable for due its lower consumption higher conversion efficiency. Although great progress has been made fuels, designing efficient catalysts effectively control activation C-O bond growth C-C remains challenge. This review highlights research advances thermocatalytic pathway. The catalyst design, reaction mechanism, component, key factors affecting catalytic performance are summarized analyzed purpose this provide comprehensive view inspire development novel future.

Язык: Английский

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Unraveling the tunable selectivity on cobalt oxide and metallic cobalt sites for CO2 hydrogenation

Chemical Engineering Journal, Год журнала: 2022, Номер 446, С. 137217 - 137217

Опубликована: Май 27, 2022

Язык: Английский

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Stabilizing Cu2O for enhancing selectivity of CO2 electroreduction to C2H4 with the modification of Pd nanoparticles

Chemical Engineering Journal, Год журнала: 2022, Номер 452, С. 139358 - 139358

Опубликована: Сен. 22, 2022

Язык: Английский

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Direct CO2 hydrogenation to light olefins over ZnZrOx mixed with hierarchically hollow SAPO-34 with rice husk as green silicon source and template

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 315, С. 121572 - 121572

Опубликована: Июнь 2, 2022

Язык: Английский

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