Addressing the Carbonate Issue: Electrocatalysts for Acidic CO₂ Reduction Reaction

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: May 9, 2024

Abstract Electrochemical CO 2 reduction reaction (CO RR) powered by renewable energy provides a promising route to conversion and utilization. However, the widely used neutral/alkaline electrolyte consumes large amount of produce (bi)carbonate byproducts, leading significant challenges at device level, thereby impeding further deployment this reaction. Conducting RR in acidic electrolytes offers solution address “carbonate issue”; however, it presents inherent difficulties due competitive hydrogen evolution reaction, necessitating concerted efforts toward advanced catalyst electrode designs achieve high selectivity activity. This review encompasses recent developments RR, from mechanism elucidation design engineering. begins discussing mechanistic understanding pathway, laying foundation for RR. Subsequently, an in‐depth analysis advancements catalysts is provided, highlighting heterogeneous catalysts, surface immobilized molecular enhancement. Furthermore, progress made device‐level applications summarized, aiming develop high‐performance systems. Finally, existing future directions are outlined, emphasizing need improved selectivity, activity, stability, scalability.

Language: Английский

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Advancements in Amorphous Oxides for Electrocatalytic Carbon Dioxide Reduction

Materials Today Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 100065 - 100065

Published: Sept. 1, 2024

Language: Английский

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Advancements in Understanding Catalyst Reconstruction During Electrochemical CO₂ Reduction

Exploration, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

ABSTRACT Electrochemical CO 2 reduction reaction (CO RR) has received great attention to solve ‐ induced global warming and carbon neutrality. It is essential enhance the electrochemical RR selectivity, activity, long‐term stability for sustainable manufacturing of specific chemicals via RR. To produce multi‐carbon (C 2+ ) chemicals, Cu‐based heterogeneous catalysts have been developed in terms defect engineering, morphological design, facet control. Despite substantial efforts design efficient catalysts, there exist inevitable structural changes with continuous dissolution redeposition during This reconstruction modifies as‐synthesized into an unpredictable structure leads active site. Here, we review RR, which occurs process. includes fundamental principles effect microenvironment on We offer research progress about electrocatalysts, analysis methodologies track reconstruction, insight improve provide perspective understand harness development catalysts.

Language: Английский

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Accelerating acidic CO₂ electroreduction: strategies beyond catalysts

Chemical Science, Journal Year: 2024, Volume and Issue: 15(37), P. 15087 - 15108

Published: Jan. 1, 2024

This review emphasizes the fundamentals of CO 2 RR in neutral, alkaline, and acidic electrolytes thoroughly discusses current challenges strategies for beyond catalyst itself.

Language: Английский

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Development of catalysts and reactor designs for CO₂ electroreduction towards C₂₊ products

Energy Materials, Journal Year: 2025, Volume and Issue: 5(5)

Published: Feb. 25, 2025

Recent research on the electrocatalytic CO2 reduction reaction (eCO2RR) has garnered significant attention given its capability to address environmental issues associated with emissions while harnessing clean energy produce high-value-added products. Compared C1 products, C2+ products provide greater densities and are highly sought after as chemical feedstocks. However, formation of C-C bond is challenging due competition H-H C-H bonds. Therefore, elevate selectivity yield fuels, it essential develop more advanced electrocatalysts optimize design electrochemical cell configurations. Of materials investigated for CO2RR, Cu-based stand out their wide availability, affordability, compatibility. Moreover, catalysts exhibit promising capabilities in adsorption activation, facilitating compounds via coupling. This review examines recent both cells electroreduction compounds, introducing core principles eCO2RR pathways involved generating A key focus categorization catalyst designs, including defect engineering, surface modification, nanostructure tandem catalysis. By analyzing studies catalysts, we aim elucidate mechanisms behind enhanced compounds. Additionally, various types electrolytic discussed. Lastly, prospects limitations utilizing highlighted future research.

Language: Английский

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Production of Lactic Acid Directly from CO₂ by a Bioelectro-Hybrid System

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Electrochemical CO2 reduction (ECO2R) is a pivotal strategy for addressing global carbon emissions while producing valuable chemicals. Despite their promise, conventional ECO2R processes are limited to simple C1 and C2 compounds. In this study, we present bioelectro-hybrid system the direct conversion of gaseous into l-lactic acid (l-LA), versatile precursor biodegradable polylactic acid. This integrates electrolyzer with metabolically engineered Escherichia coli, enabling efficient bioconversion formic (FA), derived from CO2, l-LA under ambient conditions. A physiologically compatible catholyte was employed facilitate continuous FA production also serving as medium microbes' viability. By optimizing composition, pH, nitrogen sources, current density electrolyzer, produced efficiently. Operating at optimal ensured stable supply maximized microbial efficiency. work presents potential scalable platform sustainable utilization high-value chemicals, advancing technologies biorefinery applications.

Language: Английский

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Cu MOF-based electrocatalysts for CO2 reduction to multi-carbon products

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The latest progress of Cu MOF-based electrocatalysts (Cu-based MOFs, Cu-based MOF composites, and derivatives) for the CO 2 RR to C 2+ products was discussed with a focus on strategies mechanisms enhancing catalytic performance.

Language: Английский

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Beyond CO2 reduction: Electrochemical C–N coupling reaction for organonitrogen compound production

Current Opinion in Electrochemistry, Journal Year: 2024, Volume and Issue: 46, P. 101491 - 101491

Published: March 22, 2024

Language: Английский

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Cation‐Infused Bilayer Ionomer Coating Enables High Partial Current Density Toward Multi Carbon Products in CO₂ Electrolysis

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(39)

Published: July 20, 2024

Abstract Electrochemical CO 2 reduction (eCO R) stands as a pivotal technology for carbon recycling by converting into value‐added products. While significant strides have been made in generating multi‐carbon (C 2+ ) products like ethylene H 4 and ethanol 5 OH) at industrial‐scale current densities with high Faradaic efficiency (FE), cathode flooding (bi)carbonate salt accumulation remain fundamental concern an alkaline electrolyte. In this work, ion‐conducting polymers are used to tailor the micro‐environment mitigating precipitation thus, enhancing local availability. The impact of cation anion exchange ionomer layers, specifically Nafion Sustainion XA‐9 examined on overall eCO R performance. use ultra‐thin bilayer configuration significantly reduces ≈58% compared commercial membrane (AEM). Alongside, infusion improves C─C bond formation inducing favorable selective C formation. This cation‐infused (CIBLI) achieves partial density ≈284 mA cm −2 toward maintaining stable performance 24 hours (h). scalable approach directly deposited CIBLI offers minimal conversion energy 117 GJ/ ton (EE) 29% 350 one‐step conversion.

Language: Английский

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Microenvironment Manipulation Strategies for Acidic CO₂ Electrolysis

ChemElectroChem, Journal Year: 2024, Volume and Issue: 11(21)

Published: Oct. 17, 2024

Abstract The electrochemical reduction of CO 2 (CO RR) has gained significant attention due to its potential reduce carbon emissions and produce valuable fuels chemicals. RR is typically carried out in neutral or alkaline conditions, while challenges such as the crossover salt precipitate can hinder practical application. Conducting acidic media presents a promising method address these issues, although it faces problem low efficiency poor catalysis stability. Regulating interface/surface microenvironment near catalysts crucial minimize competitive hydrogen evolution reaction enhance activity long‐term This review outlines recent advancements RR, emphasizing various engineering strategies for optimizing kinetics including electrolyte composition manipulation, catalyst design, electrode modification cell configuration optimization. Additionally, addresses into developing cost‐effective systems.

Language: Английский

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