Reactive capture and electrochemical conversion of CO₂ with ionic liquids and deep eutectic solvents

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(17), P. 8563 - 8631

Published: Jan. 1, 2024

Ionic liquids (ILs) and deep eutectic solvents (DESs) have tremendous potential for reactive capture of CO 2 , due to their highly properties, including a wide electrochemical stability window, low volatility, high solubility.

Language: Английский

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Thermo‐ and Photocatalytic Activation of CO₂ in Ionic Liquids Nanodomains

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(31)

Published: March 13, 2023

Ionic liquids (ILs) are considered to be potential material devices for CO2 capturing and conversion energy-adducts. They form a cage (confined-space) around the catalyst providing an ionic nano-container environment which serves as physical-chemical barrier that selectively controls diffusion of reactants, intermediates, products catalytic active sites via their hydrophobicity contact ion pairs. Hence, electronic properties catalysts in ILs can tuned by proper choice IL-cations anions strongly influence residence time/diffusion nano-environment. On other hand, provide driving force towards photocatalytic redox process increase photoreduction. By combining with semiconductor, unique solid semiconductor-liquid commodities generated lower activation energy modulating semiconductor surface. This mini-review provides brief overview recent advances IL assisted thermal hydrocarbons, formic acid, methanol, dimethyl carbonate, cyclic carbonates well its photo-conversion solar fuels.

Language: Английский

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Linking Electric Double Layer Formation to Electrocatalytic Activity

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(24), P. 16222 - 16239

Published: Dec. 5, 2023

Electric double layers form at electrode–electrolyte interfaces and often play defining roles in governing electrochemical reaction rates selectivity. While layer formation has remained an active area of research for more than a century, most frameworks used to predict electric properties, such as local ion concentrations, potential gradients, reactant chemical potentials, remain rooted classical Gouy–Chapman–Stern theory, which neglects ion–ion interactions assumes nonreactive interfaces. Yet, recent findings from the surface forces electrocatalysis communities have highlighted how emergence fundamentally alters mechanisms interface properties. Notably, studies with ionic liquids show that correlations clustering can substantially alter selectivity, especially concentrated electrolytes. Further, emerging suggest structures dynamics significantly change potentials where electrocatalytic reactions occur. Here, we provide our perspective on impact properties contribute modulating systems, under conditions high concentrations large applied cause deviations electrolyte theory. We also summarize growing questions opportunities further explore drastically conclude these open door using study achieve conversion by engineering

Language: Английский

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Mechanism-Guided Catalyst Design for CO₂ Hydrogenation to Formate and Methanol

Accounts of Materials Research, Journal Year: 2023, Volume and Issue: 4(9), P. 746 - 757

Published: July 26, 2023

ConspectusCO2 to formate/formic acid and methanol has emerged as a promising method for utilizing CO2 in chemical fuel synthesis, well reducing emissions when H2 is produced through renewable energy sources. This reaction requires the activation of two chemically distinct molecules, H2, along with selective formation desired product. Creating efficient catalysts that surpass limitations existing remains significant challenge. Historically, development largely depended on trial error until successful outcomes are achieved. However, recent advances material synthesis well-defined structures, kinetics analysis, situ characterization techniques, computational studies have facilitated systematic understanding catalytic reactions enabled mechanism-guided catalyst development. innovative approach empowered researchers strategically design effective optimize target reaction, particularly rate-determining step, while tackling other limitations, such selectivity stability.This Account provides an overview our efforts hydrogenation engineering, which primarily divided into sections: (i) formic acid/formate (ii) production. For acid, we first discuss structure–activity correlation various metal/support systems, including different metal particle sizes, types support, crystalline morphologies support. These highlight crucial role electron-rich sites splitting adequate number weak basic activation, inform improved unique architectures. Notably, encapsulated cluster enhance utilization species synergistic interaction between active support material. The encapsulation strategy can also be applied inexpensive elements Ni, facilitating highly catalysts.Our primary focus CO2-to-methanol durable oxide-based catalysts. We identify critical limitation oxide their poor capability, based comprehensive review classical state-of-the-art Consequently, principal concept involves coupling promoters, provide high functionality, enable adsorption synthesis. An essential synthetic doping promoters surface Specifically, atomically dispersed significantly improve yield by maximizing interfacial synergy catalyst. A remarkable incorporation hydrogen dispenser, conductive carbon, promoter multicomponent composite dramatically enhances delivery from via long-range spillover, resulting accelerated overcomes conventional metal/oxide constrain movement across conclude discussing underlying implications these observations offering perspectives future research opportunities.

Language: Английский

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New Insights on Catalytic Valorization of Carbon Dioxide by Conventional and Intensified Processes

Industrial & Engineering Chemistry Research, Journal Year: 2023, Volume and Issue: 62(14), P. 5714 - 5749

Published: April 3, 2023

Carbon capture is an emerging technology that often mentioned as a potential solution to the global warming crisis. However, most of captured carbon now treated waste, discarded, and not used in any meaningful way. On other hand, from sustainable development point view, CO2 valorization could be very appealing approach offers economic when this compound recycled into valuable chemical products. In regard, state-of-the-art review encompasses wide range different processes achieve conversion large variety It does focus solely on specific reaction or method, but rather brings aspects together provide far more complete portrait subject. Several methods approaches are discussed, namely thermochemical, electrochemical, photochemical, photoelectrochemical, biochemical, plasma-assisted conversion. The current state valorization, well alternatives stimulating prospects, was examined, while bearing mind realities limit application such technologies. Special emphasis placed optimization conditions materials ensure best possible production environmentally friendly compounds CO2. This also highlights challenges related at industrial scale, which important directing further research domain assessing prospects these Due growing number published papers subject, limited offering perspective, we thus believe will addition guide all researchers involved field for political leaders interested investing developing promising new

Language: Английский

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Advancements and Challenges in Reductive Conversion of Carbon Dioxide via Thermo-/Photocatalysis

The Journal of Organic Chemistry, Journal Year: 2022, Volume and Issue: 88(8), P. 4942 - 4964

Published: Nov. 7, 2022

Carbon dioxide (CO2) is the major greenhouse gas and also an abundant renewable carbon resource. Therefore, its chemical conversion utilization are of great attraction for sustainable development. Especially, reductive CO2 with energy input has become a current hotspot due to ability access fuels various important chemicals. Nowadays, controllable hydrogenation formic acid alcohols using H2 resources been regarded as appealing solution hydrogen storage accumulation. In addition, photocatalytic reduction CO provides potential way utilize this efficiently. Besides direct hydrogenation, functionalization integrates subsequent C–X (X = N, S, C, O) bond formation indirect transformation strategies, enlarging diverse products derived from promoting into new stage. Perspective, progress challenges conversion, including functionalization, reduction, summarized discussed along key issues future trends/directions in field. We hope Perspective can evoke intense interest inspire much innovation promise valorization.

Language: Английский

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Protic Brønsted acidic ionic liquids with variable acidity for efficient conversion of xylose and hemicellulose to furfural

Fuel, Journal Year: 2023, Volume and Issue: 339, P. 127334 - 127334

Published: Jan. 6, 2023

Language: Английский

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Criteria and cutting-edge catalysts for CO₂ electrochemical reduction at the industrial scale

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 83, P. 102819 - 102819

Published: May 1, 2024

Converting waste or hazardous chemicals into valuable products is a paramount consideration from economic, environmental, and sustainability standpoints. Diverse strategies are under exploration to convert CO₂ fine chemicals, encompassing electrocatalysis, thermo- photo-catalysis, chemical fixation. Amid these avenues, the electrochemical reduction reaction (CO₂RR) emerges as exceptionally promising, driven by its manifold advantages growing accessibility of renewable electricity sources. While CO₂RR has witnessed substantial advancements, most endeavors remain in proof-of-concept phase, necessitating improved catalytic efficiency stability enable industrialization. Realizing industrial viability technology mandates meticulous myriad electrocatalyst-related factors. This review delves critical criteria recent materials with potential drive at an scale. These factors, akin other processes, closely relate activity, product selectivity, catalyst/system stability, catalyst cost. In this context, we investigated that define electrocatalysts industrially feasible, considering factors such Faradaic efficiency, current density, energy overpotential, choice materials. Furthermore, highlight prime examples demonstrating high for process categorize them based on products. To offer comprehensive perspective, also discusses fundamental principles CO₂RR, covering physicochemical properties CO₂, cell configurations, electrolyte compositions, role electrocatalysts. We address economic significance various

Language: Английский

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Highly Efficient Catalyzing and Separation System for CO₂ Hydrogenation to Formic Acid in Formate-Based Ionic Liquids

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

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Homogeneous catalytic hydrogenation of CO₂ – amino acid-based capture and utilization

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review highlights recent advances in CO 2 capture using amino acids and its hydrogenation via homogeneous metal catalysts. The key findings are discussed, challenges toward efficient, selective robust integrated processes highlighted.

Language: Английский

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