Integration of CO₂ Capture and Electrochemical Conversion

ACS Energy Letters, Год журнала: 2023, Номер 8(6), С. 2840 - 2857

Опубликована: Июнь 1, 2023

Integration of CO2 capture and conversion through electrochemical processes has emerged in recent years, offering a distinct advantage over the traditional independent methods by obviating costly media recovery compression steps. This review aims to provide comprehensive overview this promising research area. State-of-the-art studies strategies involving processes, coupling single electrolytic cell, integration into two cells for are discussed. Furthermore, energy production costs three alternative assessed compared highlight benefits systems. In addition, our personal perspectives on challenges opportunities emerging field, including achieving high faradic efficiency low cell voltage, seawater exploration, membrane-less configuration high-durability applications, presented.

Язык: Английский

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Unveiling the power of defect engineering in MOF-808 to enhance efficient carbon dioxide adsorption and separation by harnessing the potential of DFT analysis

Chemical Engineering Journal, Год журнала: 2024, Номер 494, С. 153049 - 153049

Опубликована: Июнь 12, 2024

Язык: Английский

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

Chemical Society Reviews, Год журнала: 2024, Номер 53(17), С. 8563 - 8631

Опубликована: Янв. 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.

Язык: Английский

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Accelerating the net-zero economy with CO2-hydrogenated formic acid production: Process development and pilot plant demonstration

Joule, Год журнала: 2024, Номер 8(3), С. 693 - 713

Опубликована: Янв. 30, 2024

A process capable of large-scale formic acid (FA) production via CO2 hydrogenation is presented. This study provides the key strategies for use in developing a viable continuous operation. Based on proposed strategies, pilot-scale with capacity 10 kg/day was constructed. The operability demonstrated pilot plant operation >100 h, achieving conversion rate 82% and producing FA high purity >92 wt %. Techno-economic analysis life cycle assessment results validated simulation model indicate that significantly reduces level global warming impact by 42% while cutting cost 37%, compared conventional FA. contents this provide comprehensive manual utilization solution, showing economic profitability as well environmental reduction.

Язык: Английский

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Direct Air Capture and Integrated Conversion of Carbon Dioxide into Cyclic Carbonates with Basic Organic Salts

ACS Sustainable Chemistry & Engineering, Год журнала: 2023, Номер 11(26), С. 9613 - 9619

Опубликована: Июнь 23, 2023

Direct air capture and integrated conversion is a very attractive strategy to reduce CO2 concentration in the atmosphere. However, existing capturing processes are technologically challenging due costs of low CO2. The efficient valorization captured could help overcome many techno-economic limitations. Here, we present novel economical methodology for direct that able efficiently convert from into cyclic carbonates. new approach employs commercially available basic ionic liquids, works without need sophisticated expensive co-catalysts or sorbents under mild reaction conditions. atmospheric was by IL solution (0.98 molCO2/molIL) and, subsequently, completely converted carbonates using epoxides halohydrins potentially derived biomass as substrates. A mechanism evaluated, which helped identify relevant intermediates based on halohydrins, consequently, 100% selectivity obtained methodology.

Язык: Английский

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Materials for Direct Air Capture and Integrated CO₂ Conversion: Advancement, Challenges, and Prospects

ACS Materials Au, Год журнала: 2023, Номер 3(6), С. 576 - 583

Опубликована: Авг. 31, 2023

Direct air capture and integrated CO2 conversion (DACC) technologies have emerged as promising approaches to mitigate the increasing concentration of carbon dioxide (CO2) in Earth's atmosphere. This Perspective provides a comprehensive overview recent advancements materials for capturing converting atmospheric CO2. It highlights crucial role achieving efficient selective well catalysts conversion. The paper discusses performance, limitations, prospects various context sustainable mitigation strategies. Furthermore, it explores multiple roles DACC can play stabilizing

Язык: Английский

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On the origin of carbon sources in the electrochemical upgrade of CO2 from carbon capture solutions

Joule, Год журнала: 2023, Номер 7(6), С. 1260 - 1276

Опубликована: Июнь 1, 2023

Язык: Английский

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Uncovering the Active Species in Amine-Mediated CO₂ Reduction to CO on Ag

ACS Catalysis, Год журнала: 2023, Номер 13(18), С. 12322 - 12337

Опубликована: Сен. 6, 2023

Electrochemical reactive capture of CO2, which integrates CO2 with its conversion directly from amine and other solutions, is growing interest to enable net zero eventually negative greenhouse gas emissions. While integration has been proposed mitigate certain energy penalties inefficiencies that accrue when are decoupled, introduces considerable complexity the electrochemical process due number possible reactant participants, especially in an aqueous-based solution. Moreover, influence amine-based sorbents on reduction (CO2R) mechanisms not well-understood, making rational design elusive at present. In this work, we reveal governing parameters active species amine-mediated as essential initial step toward improving these processes. We first demonstrate critical partial pressure stream resulting solution pH, affects speciation Faradaic efficiency CO production Ag. by considering amines different pKa propensities form amine-CO2 adduct carbamate, show dissolved for CO2R amine-containing enabling some solutions have comparable selectivity kinetics amine-free bicarbonate solutions. As a result, can serve reservoir inorganic carbon replenish it consumed during CO2R, alleviating mass transfer/transport limitations without participating electrochemically.

Язык: Английский

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N-Heterocyclic Carbene Moiety in Highly Porous Organic Hollow Nanofibers for Efficient CO₂ Conversions: A Comparative Experimental and Theoretical Study

ACS Catalysis, Год журнала: 2024, Номер 14(2), С. 718 - 727

Опубликована: Янв. 2, 2024

Global warming and climate change are two severe environmental dangers brought on by the steady rise in carbon dioxide (CO2) concentration atmosphere. Thus, order to reduce this problem, it is essential find an efficient material for high CO2 capture that can simultaneously exhibit good catalytic activity utilization into useful chemicals. Herein, we report synthesis of N-heterocyclic carbene-based porous organic polymers (NHC-01 NHC-02) using Friedel–Crafts reaction with imidazolium salt bi-phenyl. Among polymers, NHC-01 exhibited outstanding stability, flexibility, BET surface area (1298 m2 g–1). displayed a uptake capacity 2.85 mmol g–1 under 1.0 bar pressure at 273 K. NHC-01/02 has been utilized as metal-free organocatalyst conversion due its area, absorption capacity, bears NHC moiety network. selectively reduced methanol via hydrosilylation complete silane atmospheric pressure. Furthermore, catalyst also shows toward N-formylation reductive cyclization reactions, which showed yields up least four cycles. The mechanisms studied theoretical simulation density functional theory (DFT), intermediates have appropriate free energy level promote low barrier.

Язык: Английский

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Lignin-based porous carbon adsorbents for CO₂ capture

Chemical Society Reviews, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

A major driver of global climate change is the rising concentration atmospheric CO

Язык: Английский

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