Nanoscale Engineering of P‐Block Metal‐Based Catalysts Toward Industrial‐Scale Electrochemical Reduction of CO₂

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(34)

Published: July 27, 2023

Abstract The efficient conversion of CO 2 to value‐added products represents one the most attractive solutions mitigate climate change and tackle associated environmental issues. In particular, electrochemical reduction fuels chemicals has garnered tremendous interest over last decades. Among all from reduction, formic acid is considered economically vital products. P‐block metals (especially Bi, Sn, In, Pb) have been extensively investigated recognized as catalytic materials for electroreduction formate. Despite remarkable progress, future implementation this technology at industrial‐scale hinges on ability solve remaining roadblocks. review, current research status, challenges, prospects p‐block metal‐based catalysts primarily formate are comprehensively reviewed. rational design nanostructure engineering these metal optimization their performances discussed in detail. Subsequently, recent progress development state‐of‐the‐art operando characterization techniques together with advanced cells uncover intrinsic catalysis mechanism discussed. Lastly, a perspective directions including tackling critical challenges realize its early industrial presented.

Language: Английский

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Developing electrochemical hydrogenation towards industrial application

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(21), P. 7305 - 7332

Published: Jan. 1, 2023

Electrochemical hydrogenation reactions hold the promise of more sustainable production routes for towards bulk and fine chemicals. Their broad applicability, reactor concepts, achieved milestones future perspectives are described herein.

Language: Английский

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Advanced Catalyst Design and Reactor Configuration Upgrade in Electrochemical Carbon Dioxide Conversion

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(52)

Published: Aug. 20, 2023

Abstract Electrochemical carbon dioxide reduction reaction (CO 2 RR) driven by renewable energy shows great promise in mitigating and potentially reversing the devastating effects of anthropogenic climate change environmental degradation. The simultaneous synthesis energy‐dense chemicals can meet global demand while decoupling emissions from economic growth. However, development CO RR technology faces challenges catalyst discovery device optimization that hinder their industrial implementation. In this contribution, a comprehensive overview current state research is provided, starting with background motivation for technology, followed fundamentals evaluated metrics. Then underlying design principles electrocatalysts are discussed, emphasizing structure–performance correlations advanced electrochemical assembly cells increase selectivity throughput. Finally, review looks to future identifies opportunities innovation mechanism discovery, material screening strategies, assemblies move toward carbon‐neutral society.

Language: Английский

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Carbon Capture, Utilization, and Storage (CCUS) Technologies: Evaluating the Effectiveness of Advanced CCUS Solutions for Reducing CO2 Emissions

Results in Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: unknown, P. 100381 - 100381

Published: Dec. 1, 2024

Language: Английский

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Electrochemical CO₂ reduction integrated with membrane/adsorption‐based CO₂ capture in gas‐diffusion electrodes and electrolytes

EcoEnergy, Journal Year: 2024, Volume and Issue: 2(1), P. 3 - 21

Published: Jan. 26, 2024

Abstract Electrochemical CO 2 reduction reaction (CO RR) has attracted much attention in the last decade, owing to its unique advantages such as operation at ambient conditions, coupling with renewable electricity, and producing a wide range of products commodities. The majority RR studies are focused on pure feed, while real waste streams, flue gas or biogas, concentration does not exceed 40%. Therefore, economic feasibility carbon footprint greatly limited by purification steps before electrolysis ($70–100 per ton for /N separation). In recent years, have exhibited importance this matter integrating capture electroreduction single unit. Mostly, solutions electrolytes been under attention, promising results achieved significantly improve overall economy RR. focus capture‐electroreduction integration can go beyond solution/electrolyte‐based (e.g., amine ionic liquids) other processes solid adsorption membrane‐based processes, more efficient options, be potentially integrated gas‐diffusion electrode design. This article aims review efforts provides new perspectives material selection design membrane‐ adsorption‐based capture‐reduction integration, addition analysis integration.

Language: Английский

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Hollow fiber gas-diffusion electrodes with tailored crystal facets for tuning syngas production in electrochemical CO2 reduction

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151651 - 151651

Published: April 24, 2024

Language: Английский

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Steering CO Selectivity in CO₂ Electroreduction over Silver Microtubular Gas-Diffusion Electrodes via Surface Reconstruction

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(11), P. 10096 - 10105

Published: May 10, 2024

An efficient gas diffusion electrode (GDE) is crucial for enhancing mass transport involving gas-phase CO2 conversion in the electrochemical reduction reaction (CO2RR). Microtubular hollow fiber GDE (HFGDE) with a porous hierarchical wall has garnered significant attention, which can modulate triple-phase zone and improve performance of CO2RR. Simultaneously, engineering nano/microstructure surfaces electrocatalysts have been demonstrated to effectively enhance selectivity activity Here, we developed microparticle Ag-based HFGDE via an situ oxidation–reduction method. Both CO showed enhancement over pristine thermal reduced Ag without surface reconstruction. At −1.2 V vs RHE, faradaic efficiency 94%, partial current density 83.4 mA cm–2, surpassing that treatment electrodes, only 26% 12.3 cm–2. The distinctive reconstruction on electrocatalyst could be attributed decreasing activation energy barrier rate-limiting step initial electron/proton transfer. This work represents facile strategy as advanced materials conversion.

Language: Английский

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Tuning flow-through cu-based hollow fiber gas-diffusion electrode for high-efficiency carbon monoxide (CO) electroreduction to C2+products

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 330, P. 122589 - 122589

Published: March 8, 2023

Electrochemical carbon monoxide reduction (CORR) to C2+ products has advantages over electrochemical CO2 conversion (CO2RR) as issues such carbonation, and loss during CO2RR are omitted in CORR due the stability of CO alkaline solutions. Facing common challenges CO2RR, suffers more from mass transport resistance intrinsically lower aqueous solubility. Therefore gas-diffusion electrodes (GDEs) desired boost formation triple phases active sites obtain higher reaction rates. Herein, for first time Cu-based hollow fiber GDEs (HFGDEs) tuned products. By growing a layer Cu nanocubes catalyst on HFGDEs, non-selective pristine copper HFGDE became highly selective (FE>90%), with ethylene main product (FE>65%), owing dominant (100) facet high selectivity. In addition, ultra-high partial current density > 470 mA cm−2 at − 0.8 V vs. RHE 5.0 M KOH was obtained, abundant porosity surface area available triple-phase microtubular their enhanced transport. The exhibited one highest densities achieved production, indicating promises flow-through configuration other or gas-phase reactions low

Language: Английский

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Recent advances in nanoscale engineering of Pd-based electrocatalysts for selective CO2 electroreduction to formic acid/formate

Energy Materials, Journal Year: 2024, Volume and Issue: 4(3), P. 400027 - 400027

Published: Jan. 1, 2024

Electrochemical conversion of carbon dioxide (CO2) into high-value chemicals and fuels driven by electricity derived from renewable energy has been recognized as a promising strategy to achieve neutrality create sustainable energy. Particularly the viewpoint product values economic viability, selective CO2 reduction formic acid/formate shown great promise. Palladium (Pd) demonstrated only metal that can produce perfectly near equilibrium potential; yet, it still suffers CO poisoning, poor stability competitive pathway at high overpotentials. Herein, recent progress Pd-based electrocatalysts for electroreduction their mechanistic understanding are reviewed. First, fundamentals electrochemical reaction on Pd presented. Then, advances in rational design nanoscale engineering strategies further improving activity selectivity product, including size control, morphology shape alloying, heteroatom doping, surface-strain engineering, phase discussed perspectives both experimental computational aspects. Finally, we discuss pertinent challenges describe future prospects opportunities terms development electrocatalysts, electrolyzers characterization techniques this research field.

Language: Английский

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Single-Pass Electrooxidation of Glycerol on Bismuth-Modified Platinum Electrodes as an Anodic Process Coupled to the Continuous CO₂ Electroreduction toward Formate

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(9), P. 3671 - 3679

Published: Feb. 21, 2024

CO2 electroreduction has emerged as a promising strategy for reducing emissions while simultaneously generating valuable products, particularly formic acid/formate. To further enhance the sustainability of this process, traditional oxygen evolution reaction at anode can be replaced by more interesting like glycerol oxidation to high value-added in covalorization approach. In study, effect presence bismuth (Bi) atom supplier (Bi2O3 particles) anolyte solution during electrooxidation process on platinum (Pt) electrodes coupled with formate is investigated first time, operating continuous mode single pass through reactor. The results reveal that cathode, significant HCOO– production, Faradaic efficiencies reaching 93%, and modest energy consumption 208 kW h·kmol–1 were obtained using Bi gas diffusion electrodes. On other hand, anode, Bi2O3 particles leads alteration distribution high-value-added products obtained. For instance, demonstrates remarkable dihydroxyacetone (DHA) production 283 μmol·m–2·s–1, surpassing nonmodified Pt performance system offers pathway simultaneous coproduction from both glycerol.

Language: Английский

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