Design of catalysts for selective CO2 hydrogenation

Nature Synthesis, Год журнала: 2025, Номер unknown

Опубликована: Фев. 27, 2025

Язык: Английский

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Hydrogenation of CO ₂ for sustainable fuel and chemical production

Science, Год журнала: 2025, Номер 387(6737)

Опубликована: Фев. 27, 2025

Catalytic carbon dioxide (CO2) hydrogenation is a potential route for producing sustainable fuels and chemicals, but existing catalysts need improvement. In particular, identifying active sites understanding the interaction between components dynamic behavior of participant species remain unclear. This fundamental knowledge essential design more efficient stable catalysts. Because nature site (metal, oxide, carbide) main factor that determines catalytic activity catalysts, this Review focuses on various types heterogeneous have been recently reported in literature as CO2 conversion to C1 [carbon monoxide (CO), methanol (CH3OH), methane (CH4)], higher hydrocarbons. We focus establishing key connections active-site structures selectivity, regardless catalyst composition.

Язык: Английский

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Plasma-assisted synthesis of porous bismuth nanosheets for electrocatalytic CO2-to-formate reduction

Journal of Energy Chemistry, Год журнала: 2024, Номер 94, С. 19 - 28

Опубликована: Фев. 28, 2024

The electrochemical carbon dioxide reduction (eCO2RR) to formate, driven by clean energy, is a promising approach for producing renewable chemicals and high-value fuels. Despite its potential, further development faces challenges due limitations in electrocatalytic activity durability, especially non-noble metal-based catalysts. Here, naturally abundant bismuth-based nanosheets that can effectively drive CO2-to-formate are prepared using the plasma-activated Bi2Se3 followed process. Thus-obtained Bi (P-BiNS) feature ultrathin structures high surface areas. Such nanostructures ensure P-BiNS with outstanding eCO2RR catalytic performance, highlighted current density of over 80 mA cm−2 formate Faradic efficiency >90%. Furthermore, catalysts demonstrate excellent durability stability without deactivation following 50 h operation. selectivity production also studied functional theory (DFT) calculations, validating importance efficacy stabilization intermediates (OCHO*) on surfaces. This study provides facile plasma-assisted developing high-performance low-cost electrocatalysts.

Язык: Английский

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Fe2O3@ZrO2 catalyst derived from MOF-on-MOF for direct CO2 hydrogenation to light olefins

Chemical Engineering Journal, Год журнала: 2024, Номер 494, С. 152926 - 152926

Опубликована: Июнь 7, 2024

Язык: Английский

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The electronic interaction of encapsulating graphene layers with FeCo alloy promotes efficient CO2 Hydrogenation to light olefins

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Год журнала: 2025, Номер 68, С. 366 - 375

Опубликована: Янв. 1, 2025

Язык: Английский

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Sun-simulated-driven production of high-purity methanol from carbon dioxide

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Янв. 20, 2025

CO2 conversion to CH3OH under mild conditions is of particular interest yet rather challenging. Both electro- and thermo-catalytic reduction can only produce in low concentration (typically mixed with water), requiring energy-intensive purification processes. Here we design a sun-simulated-driven tandem catalytic system comprising electroreduction syngas, further photothermal into high-purity (volume fraction > 97%). We construct self-supporting electrocatalyst featuring dual active sites Ni single atoms encapsulated Co nanoparticles, which could syngas constant H2:CO ratio ~2 via solar-powered electroreduction. The generated subsequently fed the module, 1 sun-light irradiation, rate 0.238 gCH3OH gcat–1 h–1. This work demonstrates feasible sustainable route for directly converting CH3OH. Here, authors report <97%).

Язык: Английский

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Reaction Mechanisms and Applications of Single Atom Catalysts for Thermal-Catalytic Carbon Dioxide Hydrogenation Toward Oxygenates

ACS Catalysis, Год журнала: 2024, Номер 14(21), С. 16434 - 16458

Опубликована: Окт. 23, 2024

Thermo-catalytic CO2 hydrogenation to high-value oxygenates has been regarded as one of the most powerful strategies that can potentially alleviate excessive emissions. However, due high chemical stability and variability pathways, it is still challenging achieve highly active selective hydrogenation. Single atom catalysts (SACs) with ultrahigh metal utilization efficiency extraordinary electronic features have displayed growing importance for thermo-catalytic multiple developed improve performances. Here, we review breakthroughs in developing SACs efficient toward common (CO, HCOOH, CH3OH, CH3CH2OH) following order: first, an analysis reaction mechanisms thermodynamics challenges reactions; second, a summary SAs designed by dividing them into two categories single- dual-sites; third, discussion support effects focus on approaches regulating strong metal–support interaction (MSI). Summarily, current future perspectives develop higher-performance are presented. We expect this bring more design inspiration trigger innovation catalytic evolution materials eventually benefit achievement carbon-neutrality goal.

Язык: Английский

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Construction of Highly Active Fe₅C₂–FeCo Interfacial Sites for Oriented Synthesis of Light Olefins from CO₂ Hydrogenation

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 1112 - 1122

Опубликована: Янв. 3, 2025

The hydrogenation of CO2 into high-value chemistry is seen as one the viable strategies for solving energy crisis future. Light olefins have attracted considerable attention basic feedstocks in industry. In this work, a series Fe–Co bimetallic active site catalysts were constructed by typical sol–gel strategy. synergistic regulation layout catalyst highly interfaces and exhibited high conversion (56.9%) CO2, low CO selectivity (3.6%), (40.5%) light olefins, remarkable yield (22.2%). results associated characterization analysis indicate that activity formed sites are fundamental reason olefins. introduction cobalt drive RWGS reaction forward (Le Chatelier's Principle), which further enhances conversion. addition, dynamic evolution physical phase structure, elemental composition valence, H2 adsorption ability, formation process during analyzed situ DRIFT spectra other characterizations, potential mechanism to proposed. This work provides an effective rational design strategy bimetals with promote efficient oriented synthesis

Язык: Английский

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Bio-aromatics: Revolutionizing the integrated biomass and plastic waste valorization for high-value aromatic hydrocarbons via bifunctional catalytic pathways of bio-syngas conversion

Biomass and Bioenergy, Год журнала: 2025, Номер 196, С. 107736 - 107736

Опубликована: Фев. 23, 2025

Язык: Английский

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Advances in integrated catalysts for CO2 thermal hydrogenation to multicarbon products

Chem Catalysis, Год журнала: 2025, Номер unknown, С. 101264 - 101264

Опубликована: Фев. 1, 2025

Язык: Английский

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