Multiscale CO₂ Electrocatalysis to C₂₊ Products: Reaction Mechanisms, Catalyst Design, and Device Fabrication

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(17), P. 10530 - 10583

Published: Aug. 17, 2023

Electrosynthesis of value-added chemicals, directly from CO2, could foster achievement carbon neutral through an alternative electrical approach to the energy-intensive thermochemical industry for utilization. Progress in this area, based on electrogeneration multicarbon products CO2 electroreduction, however, lags far behind that C1 products. Reaction routes are complicated and kinetics slow with scale up high levels required commercialization, posing significant problems. In review, we identify summarize state-of-art progress synthesis a multiscale perspective discuss current hurdles be resolved generation reduction including atomistic mechanisms, nanoscale electrocatalysts, microscale electrodes, macroscale electrolyzers guidelines future research. The review ends cross-scale links discrepancies between different approaches extensions performance stability issues arise industrial environment.

Language: Английский

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Electrocatalytic CO₂ Reduction to C₂₊ Products in Flow Cells

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(5)

Published: Aug. 31, 2023

Abstract Electrocatalytic CO 2 reduction into value‐added fuels and chemicals by renewable electric energy is one of the important strategies to address global shortage carbon emission. Though classical H‐type electrolytic cell can quickly screen high‐efficiency catalysts, low current density limited mass transfer process essentially impede its industrial applications. The cells based on electrolyte flow system (flow cells) have shown great potential for devices, due higher density, improved local concentration, better efficiency. design optimization are significance further accelerate industrialization electrocatalytic reaction (CO RR). In this review, progress RR C 2+ products concerned. Firstly, main events in development outlined. Second, principles products, architectures, types summarized. Third, optimizing generate reviewed detail, including cathode, anode, ion exchange membrane, electrolyte. Finally, preliminary attempts, challenges, research prospects toward discussed.

Language: Английский

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Defective Metal Oxides: Lessons from CO₂RR and Applications in NO_xRR

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(28)

Published: Feb. 23, 2023

Abstract Sluggish reaction kinetics and the undesired side reactions (hydrogen evolution self‐reduction) are main bottlenecks of electrochemical conversion reactions, such as carbon dioxide nitrate reduction (CO 2 RR NO 3 RR). To date, conventional strategies to overcome these challenges involve electronic structure modification modulation charge‐transfer behavior. Nonetheless, key aspects surface modification, focused on boosting intrinsic activity active sites catalyst surface, yet be fully understood. Engingeering oxygen vacancies (OVs) can tune surface/bulk improve electrocatalysts. The continuous breakthroughs significant progress in last decade position engineering OVs a potential technique for advancing electrocatalysis. Motivated by this, state‐of‐the‐art findings roles both CO presented. review starts with description approaches constructing techniques characterizing OVs. This is followed an overview mechanistic understanding detailed discussion RR. Then, insights into mechanism based early highlighted. Finally, designing RR/NO electrocatalysts perspectives studying OV provided.

Language: Английский

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Green Conversion of Carbon Dioxide and Sustainable Fuel Synthesis

Fire, Journal Year: 2023, Volume and Issue: 6(3), P. 128 - 128

Published: March 22, 2023

Carbon capture and use may provide motivation for the global problem of mitigating warming from substantial industrial emitters. Captured CO2 be transformed into a range products such as methanol renewable energy sources. Polymers, cement, heterogeneous catalysts varying chemical synthesis are examples commercial goods. Because some these components converted power, is feedstock excellent transporter. By employing collected atmosphere primary hydrocarbon source, carbon-neutral fuel created. The subsequently burned, released like byproduct combustion process. There no net carbon dioxide emitted or withdrawn environment during this process, hence name fuel. In world with net-zero emissions, anthroposphere will have attained its hold-up capacity in response to particular average temperature increase, 1.5 °C. As result, each atom removed subsurface (lithosphere) must returned it, it expelled atmosphere. removal technologies, biofuels sequestration direct air capture, required lower high concentration if Paris Agreement’s ambitious climate targets realized. scenario, consumption expected contribute displacement fossil fuels. This article includes conceptual study an evaluation technology that enables industry net-zero-CO2-emissions environment. These based on novel processes, along “green” hydrogen, biomass. It also shed light innovative methods green transformation getting sustainable, environmentally friendly energy.

Language: Английский

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A comprehensive review of electrochemical reduction of CO2 to methanol: Technical and design aspects

Journal of CO2 Utilization, Journal Year: 2023, Volume and Issue: 71, P. 102477 - 102477

Published: April 24, 2023

The electrochemical reduction of CO2 (ERC) is a promising utilization technology that can convert into wide variety fuels and chemicals via reactions. Among the various products be produced from ERC, methanol potential liquid product utilized as fuel an intermediate feedstock for chemical production. Recently, many researchers have shown interest in ERC process selective development production has been done both experimental studies, particularly electrocatalyst design development, analysis to overcome challenges such low solubility, selectivity, inefficient catalysts, mass transfer limitations, high overpotentials, commercialization. This review aims present progress studies on ERC. An overview conversion involving hydrogenation, photoelectrochemical first described. Then, key factors affecting electrocatalyst, electrolyte, operating conditions, are analyzed. Furthermore, modeling analyses discussed consider commercialization form methanol. Finally, suggestions future research given final section this review.

Language: Английский

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Plasma Catalysis for Hydrogen Production: A Bright Future for Decarbonization

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(9), P. 6749 - 6798

Published: April 16, 2024

Thermal approaches have played a dominant role in driving chemical reactions within the chemicals and fuels industries, benefiting from ongoing enhancements efficiency via heat integration, catalyst development, process intensification. Nevertheless, these traditional thermal remain heavily reliant on fossil fuels, there exists an urgent demand for implementation of renewable energy technologies to synthesize commodity chemicals, specialty chemicals. Nonthermal plasmas gained considerable attention recent years as promising solution, prospects combining with suitable catalysts become even more appealing. Moreover, evolution nonthermal plasma catalysis generation clean hydrogen could be transformative reducing greenhouse gas emissions. This comprehensive review highlights influential contributions production, discusses advancements, provides future researchers aiming advance production hydrogen.

Language: Английский

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Development of highly stable Ni-doped zeolitic imidazole framework (ZIF-67) based catalyst for CO2 methanation reaction

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 57, P. 1474 - 1485

Published: Jan. 21, 2024

Language: Английский

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Unveiling Key Descriptors of Ionomer Materials for Enhanced Electrochemical CO₂ Reduction

ACS Energy Letters, Journal Year: 2025, Volume and Issue: 10(1), P. 620 - 628

Published: Jan. 3, 2025

Polymeric ionomers near the catalyst surface of CO2 reduction reaction (CO2RR) electrodes affect their efficiency; however, multifaceted properties complicate structure–activity relationship elucidation. Here, we synthesized polycarbazole-based anion-exchange (QPC) bearing varying functionalized side chains to explore this relationship. Comprehensive analysis in physicochemical properties, electrochemical activity, and operando ATR-SEIRAS revealed that functional group modification significantly influenced intrinsic ionomer thereby affecting Ag microenvironments interfacial water structures, kinetics protonation step for CO2RR hydrogen evolution (HER). Notably, QPC-trimethyl phosphonium (TMP) induced favorable having a high proportion strong H-bonded with low Stark tuning slopes, which inhibit HER promote CO2RR. A CO Faradaic efficiency (>90%) was maintained using QPC-TMP membrane electrode assembly, even under concentrations (100–15%) elevated temperatures (28–72 °C). These findings suggest catalytic environment can be optimized by fine-tuning structure, contributing advancement high-performance ionomers.

Language: Английский

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Electrocatalytic conversion of CO2 into selective carbonaceous fuels using metal-organic frameworks: An overview of recent progress and perspectives

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 44, P. 102538 - 102538

Published: Jan. 21, 2025

Language: Английский

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Exploring the influence of cell configurations on Cu catalyst reconstruction during CO2 electroreduction

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Sept. 27, 2024

Language: Английский

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