Industrial carbon dioxide capture and utilization: state of the art and future challenges

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(23), P. 8584 - 8686

Published: Jan. 1, 2020

This review covers the sustainable development of advanced improvements in CO₂capture and utilization.

Language: Английский

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Electrocatalysis for CO₂conversion: from fundamentals to value-added products

Chemical Society Reviews, Journal Year: 2021, Volume and Issue: 50(8), P. 4993 - 5061

Published: Jan. 1, 2021

This timely and comprehensive review mainly summarizes advances in heterogeneous electroreduction of CO₂: from fundamentals to value-added products.

Language: Английский

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Advances and Challenges for the Electrochemical Reduction of CO₂ to CO: From Fundamentals to Industrialization

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(38), P. 20627 - 20648

Published: April 17, 2021

Abstract The electrochemical carbon dioxide reduction reaction (CO 2 RR) provides an attractive approach to convert renewable electricity into fuels and feedstocks in the form of chemical bonds. Among different CO RR pathways, conversion is considered one most promising candidate reactions because its high technological economic feasibility. Integrating catalyst electrolyte design with understanding catalytic mechanism will yield scientific insights promote this technology towards industrial implementation. Herein, we give overview recent advances challenges for selective CO. Multidimensional engineering are also summarized. Furthermore, studies on large‐scale production highlighted facilitate industrialization . To conclude, remaining future directions application generate highlighted.

Language: Английский

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Heterogeneous Single‐Atom Catalysts for Electrochemical CO₂ Reduction Reaction

Advanced Materials, Journal Year: 2020, Volume and Issue: 32(34)

Published: July 9, 2020

The electrochemical CO2 reduction reaction (CO2 RR) is of great importance to tackle the rising concentration in atmosphere. RR can be driven by renewable energy sources, producing precious chemicals and fuels, with implementation this process largely relying on development low-cost efficient electrocatalysts. Recently, a range heterogeneous potentially single-atom catalysts (SACs) containing non-precious metals coordinated earth-abundant elements have emerged as promising candidates for RR. Unfortunately, real catalytically active centers key factors that govern catalytic performance these SACs remain ambiguous. Here, ambiguity addressed developing fundamental understanding RR-to-CO SACs, CO accounts major product from SACs. mechanism, rate-determining steps, control activity selectivity are analyzed both experimental theoretical studies. Then, synthesis, characterization, discussed. Finally, challenges future pathways highlighted hope guiding design promote understand

Language: Английский

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Competition between CO₂ Reduction and Hydrogen Evolution on a Gold Electrode under Well-Defined Mass Transport Conditions

Journal of the American Chemical Society, Journal Year: 2020, Volume and Issue: 142(9), P. 4154 - 4161

Published: Feb. 10, 2020

Gold is one of the most selective catalysts for electrochemical reduction CO2 (CO2RR) to CO. However, concomitant hydrogen evolution reaction (HER) remains unavoidable under aqueous conditions. In this work, a rotating ring disk electrode (RRDE) setup has been developed study quantitatively role mass transport in competition between these two reactions on Au surface 0.1 M bicarbonate electrolyte. Interestingly, while faradaic selectivity CO formation was found increase with enhanced (from 67% 83%), effect not due an enhancement CO2RR rate. Remarkably, inhibition competing HER from water increasing rotation rate responsible selectivity. This can be explained by observation that, electrode, improves more alkaline pH. As result, decrease local alkalinity near suppresses reduction. Our shows that controlling pH conditions tune rate, turn regulating and general operating potential window (-0.4 -1 V vs RHE).

Language: Английский

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Gas diffusion electrodes (GDEs) for electrochemical reduction of carbon dioxide, carbon monoxide, and dinitrogen to value-added products: a review

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(4), P. 1959 - 2008

Published: Jan. 1, 2021

Opportunities, challenges and design criteria associated with Gas diffusion electrodes (GDEs) for various electrochemical applications.

Language: Английский

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Catalyst–electrolyte interface chemistry for electrochemical CO₂ reduction

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(18), P. 6632 - 6665

Published: Jan. 1, 2020

The electrochemical reduction of CO2 stores intermittent renewable energy in valuable raw materials, such as chemicals and transportation fuels, while minimizing carbon emissions promoting carbon-neutral cycles. Recent technoeconomic reports suggested economically feasible target products electroreduction the relative influence key performance parameters faradaic efficiency (FE), current density, overpotential practical industrial-scale applications. Furthermore, fundamental factors, available reaction pathways, shared intermediates, competing hydrogen evolution reaction, scaling relations intermediate binding energies, mass transport limitations, should be considered relation to performance. Intensive research efforts have been devoted designing developing advanced electrocatalysts improving mechanistic understanding. More recently, focus was extended catalyst environment, because interfacial region can delicately modulate catalytic activity provide effective solutions challenges that were not fully addressed material development studies. Herein, we discuss importance catalyst-electrolyte interfaces operational based on kinetic equations. extensively review previous studies controlling organic modulators, electrolyte ions, electrode structures, well three-phase boundary at interface. modulates electrocatalytic properties via electronic modification, stabilization, proton delivery regulation, structure reactant concentration control, regulation. We understanding interface its effect activity.

Language: Английский

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Role of the Carbon-Based Gas Diffusion Layer on Flooding in a Gas Diffusion Electrode Cell for Electrochemical CO₂ Reduction

ACS Energy Letters, Journal Year: 2020, Volume and Issue: 6(1), P. 33 - 40

Published: Nov. 25, 2020

The deployment of gas diffusion electrodes (GDEs) for the electrochemical CO2 reduction reaction (CO2RR) has enabled current densities an order magnitude greater than those aqueous H cells. gains in production, however, have come with stability challenges due to rapid flooding GDEs, which frustrate both laboratory experiments and scale-up prospects. Here, we investigate role carbon layers (GDLs) advent during CO2RR, finding that applied potential plays a central observed instabilities. Electrochemical characterization GDLs without catalysts suggests high overpotential required CO2RR initiates hydrogen evolution on GDL support. These potentials impact wetting characteristics hydrophobic GDL, resulting is independent CO2RR. Findings from this work can be extended any using carbon-based GDEs (CORR or N2RR) cathodic overpotentials less −0.65 V versus reversible electrode.

Language: Английский

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Designing CO₂ reduction electrode materials by morphology and interface engineering

Energy & Environmental Science, Journal Year: 2020, Volume and Issue: 13(8), P. 2275 - 2309

Published: Jan. 1, 2020

This review discusses how morphology and interface engineering promote electrocatalytic CO₂ reduction, providing general design principles to fabricate advanced electrode catalysts.

Language: Английский

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Recent Progress of Vacancy Engineering for Electrochemical Energy Conversion Related Applications

Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 31(9)

Published: Dec. 6, 2020

Abstract Efficient electrocatalysts are key requirements for the development of ecofriendly electrochemical energy‐related technologies and devices. It is widely recognized that introduction vacancies becoming an important valid strategy to promote electrocatalytic performances designed nanomaterials. In this review, significance (i.e., cationic vacancies, anionic mixed vacancies) on improvement via three main functionalities, including tuning electronic structure, regulating active sites, improving electrical conductivity, systematically discussed. Recent achievements in vacancy engineering various hotspot processes comprehensively summarized, with focus oxygen reduction reaction (ORR), evolution (OER), hydrogen (HER), nitrogen (NRR), CO 2 (CO RR), their further applications overall water‐splitting zinc–air battery The recent other also summarized. Finally, challenges prospects regulate different reactions

Language: Английский

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