Advances and challenges in the electrochemical reduction of carbon dioxide

Chemical Science, Journal Year: 2024, Volume and Issue: 15(21), P. 7870 - 7907

Published: Jan. 1, 2024

This review highlights the structure–activity relationship of ECO 2 RR, provides a detailed summary advanced materials by analyzing electrocatalytic applications and reaction mechanisms, discusses challenges in both devices.

Language: Английский

---

Observation on Microenvironment Changes of Dynamic Catalysts in Acidic CO₂ Reduction

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(8), P. 5333 - 5342

Published: Feb. 19, 2024

Electrochemical CO2 reduction reaction (CO2RR) in acid can solve alkalinity issues while highly corrosive and reductive acidic electrolytes usually cause catalyst degradation. Inhibiting degradation is crucial for the stability of CO2RR. Here, we reveal microenvironment changes dynamic Bi-based catalysts develop a pulse chronoamperometry (CA) strategy to improve In situ fluorescence mappings show that local pH from neutral acid, Raman spectra evolution interfacial water structures microenvironment. We propose surface charge properties affect competitive adsorption K+ protons, thereby causing differences CO2RR intermediate adsorption. also CA reactivate catalysts, improved by 2 orders magnitude 100 h operation, which higher than most reports on This work gives insights how affecting CO2RR, provides guidance designing stable electrolytes.

Language: Английский

---

Stabilizing the oxidation state of catalysts for effective electrochemical carbon dioxide conversion

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(12), P. 6295 - 6321

Published: Jan. 1, 2024

Developing sophisticated strategies to stabilize oxidative metal catalysts based on the correlation between dynamic oxidation state and product profile is favorable for efficient electrochemical CO 2 conversion.

Language: Английский

---

Beyond Leverage in Activity and Stability toward CO₂ Electroreduction to Formate over a Bismuth Catalyst

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(10), P. 8050 - 8061

Published: May 8, 2024

The direct production of formate from CO2 over Bi-based catalysts offers a promising route for producing important chemicals using renewable electricity. Nevertheless, limited by the unstable structure and states under electrochemical conditions, electroreduction to is still facing trade-off between activity stability, especially at high current densities. Herein, we reported metal–carbon interfacial modulation strategy synthesize cross-linked defective carbon-modified Bi nanoparticle (Bi-DC) catalyst with stable spatial unique CO2-philic hydrophobic interface. As result, Bi-DC featured remarkable ability in near neutral electrolyte (1 M KHCO3) was even comparable CO2-to-formate strongly basic systems, along partial density formation rate −378 mA cm–2 7 mmol h–1, respectively. Also, it achieved electrolysis 120 h 0.4 A membrane electrode assembly reactor operated stably an industrial large 5 A. carbon species promoted reconstruction dispersion active component Bi, together confinement effect that facilitated long-term electrolysis.

Language: Английский

---

Effects of Ionic Interferents on Electrocatalytic Nitrate Reduction: Mechanistic Insight

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(29), P. 12823 - 12845

Published: July 2, 2024

Nitrate, a prevalent water pollutant, poses substantial public health concerns and environmental risks. Electrochemical reduction of nitrate (eNO

Language: Английский

---

Reconstructed Bismuth Oxide through in situ Carbonation by Carbonate‐containing Electrolyte for Highly Active Electrocatalytic CO₂ Reduction to Formate

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(9)

Published: Dec. 26, 2023

The catalyst-reconstruction makes it challenging to clarify the practical active sites and unveil actual reaction mechanism during CO

Language: Английский

---

Recent Progress and Perspective in Pure Water‐Fed Anion Exchange Membrane Water Electrolyzers

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(35)

Published: July 9, 2024

Abstract Although anion exchange membrane water electrolyzer (AEMWE) is an emerging device in the green hydrogen production industry, use of alkaline electrolyte tackles practicality due to issues lowering system efficiency and environmental impacts. State‐of‐the‐art technology using pure as advancing overcome current challenges AEMWE. In particular, development this requires a comprehensive evaluation techno‐economic aspects, aiming balance innovation with cost considerations. This involves critical advanced catalysts, membranes, devices designed for efficiency, well assessing their economic viability amidst prevailing technological challenges. review delves into timely technical developing water‐fed AEMWE, highlights progress research prospects, suggests opportunities AEMWE technology. also emphasizes importance characterization techniques effective analysis context.

Language: Английский

---

Ligand‐Hybridization Activates Lattice‐Hydroxyl‐Groups of NiCo(OH)_x Nanowires for Efficient Electrosynthesis

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(41)

Published: July 13, 2024

Electrochemical dehydrogenation of hydroxides plays a crucial role in the formation high-valence metal active sites toward 5-hydroxymethylfurfural oxidation reaction (HMFOR) to produce value-added chemical 2,5-furandicarboxylic (FDCA). Herein, we construct benzoic acid ligand-hybridized NiCo(OH)

Language: Английский

---

Tandem Acidic CO₂ Electrolysis Coupled with Syngas Fermentation: A Two-Stage Process for Producing Medium-Chain Fatty Acids

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(17), P. 7445 - 7456

Published: April 15, 2024

The tandem application of CO2 electrolysis with syngas fermentation holds promise for achieving heightened production rates and improved product quality. However, the significant impact composition on mixed culture-based microbial chain elongation remains unclear. Additionally, effective methods generating an adjustable from acidic are currently lacking. This study successfully demonstrated medium-chain fatty acids through fermentation. CO could serve as sole energy source or electron donor (when cofed acetate) caproate generation. Furthermore, results gas diffusion electrode structure engineering highlighted that use carbon black, either alone in combination graphite, enabled consistent generation (pH 1). black layer significantly selectivity, increasing 0% to 43.5% (0.05 M K+) further 92.4% (0.5 K+). enhancement performance was attributed promotion K+ accumulation, stabilizing catalytically active sites, rather than creating a localized alkaline environment CO2-to-CO conversion. research contributes advancement hybrid technology sustainable reduction chemical production.

Language: Английский

---

Toward Durable CO₂ Electroreduction with Cu‐Based Catalysts via Understanding Their Deactivation Modes

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(31)

Published: June 7, 2024

Abstract The technology of CO 2 electrochemical reduction (CO ER) provides a means to convert , waste greenhouse gas, into value‐added chemicals. Copper is the most studied element that capable catalyzing ER obtain multicarbon products, such as ethylene, ethanol, acetate, etc., at an appreciable rate. Under operating condition ER, catalytic performance Cu decays because several factors alters surface properties Cu. In this review, these cause degradation Cu‐based catalysts are categorized generalized deactivation modes, applicable all electrocatalytic systems. fundamental principles each mode and associated effects on discussed in detail. Structure‐ composition‐activity relationship developed from recent situ/operando characterization studies presented evidence related modes operation. With aim address catalyst design reaction environment engineering rationales suggested. Finally, perspectives remarks built upon advances provided attempts improve durability catalysts.

Language: Английский

---