Zn-based batteries for sustainable energy storage: strategies and mechanisms

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(10), P. 4877 - 4925

Published: Jan. 1, 2024

This review systematically summarizes various redox mechanisms in Zn-based batteries and design strategies to improve their electrochemical performance, which provides a reference for future development of high-performance batteries.

Language: Английский

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CO₂ Electrolyzers

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3648 - 3693

Published: March 22, 2024

CO2 electrolyzers have progressed rapidly in energy efficiency and catalyst selectivity toward valuable chemical feedstocks fuels, such as syngas, ethylene, ethanol, methane. However, each component within these complex systems influences the overall performance, further advances needed to realize commercialization will require an approach that considers whole process, with electrochemical cell at center. Beyond boundaries, electrolyzer must integrate upstream feeds downstream separation processes a way minimizes product intensity presents viable use cases. Here we begin by describing sources, their intensities, impurities. We then focus on cell, most common system architectures, systems. evaluate savings feasibility of alternative approaches including integration capture, direct conversion flue gas two-step via carbon monoxide. pathways minimize separations produce concentrated streams compatible existing sectors. Applying this comprehensive upstream-to-downstream approach, highlight promising routes, outlook, for reduction.

Language: Английский

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Electrocatalytic synthesis of C–N coupling compounds from CO₂ and nitrogenous species

SusMat, Journal Year: 2024, Volume and Issue: 4(2)

Published: March 12, 2024

Abstract The electrocatalytic synthesis of C–N coupling compounds from CO 2 and nitrogenous species not only offers an effective avenue to achieve carbon neutrality reduce environmental pollution, but also establishes a route synthesize valuable chemicals, such as urea, amide, amine. This innovative approach expands the application range product categories beyond simple carbonaceous in reduction, which is becoming rapidly advancing field. review summarizes research progress urea synthesis, using N , NO − 3 species, explores emerging trends electrosynthesis amide amine nitrogen species. Additionally, future opportunities this field are highlighted, including amino acids other containing bonds, anodic reactions water oxidation, catalytic mechanism corresponding reactions. critical captures insights aimed at accelerating development electrochemical reactions, confirming superiority method over traditional techniques.

Language: Английский

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Palladium-Copper bimetallic catalysts for electroreduction of CO2 and nitrogenous species

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 509, P. 215802 - 215802

Published: March 26, 2024

Language: Английский

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A Bismuth‐Based Zeolitic Organic Framework with Coordination‐Linked Metal Cages for Efficient Electrocatalytic CO₂ Reduction to HCOOH

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(45)

Published: Sept. 18, 2023

Zeolitic metal-organic frameworks (ZMOFs) have emerged as one of the most promsing catalysts for energy conversion, but they suffer from either weak bonding between cubes (MOCs) that decrease their stability during catalysis processes or low activity due to inadequate active sites. In this work, through ligand-directing strategy, we successfully obtain an unprecedented bismuth-based ZMOF (Bi-ZMOF) featuring a ACO topological crystal structure with strong coordination Bi-based cages. As result, it enables efficient reduction CO2 formic acid (HCOOH) Faradaic efficiency high 91 %. A combination in situ surface-enhanced infrared absorption spectroscopy and density functional theory calculation reveals Bi-N contributes facilitating charge transfer N Bi atoms, which stabilize intermediate boost HCOOH. This finding highlights importance environment metal sites on electrocatalytic reduction. We believe work will offer new clue rationally design zeolitic MOFs catalytic reaction.

Language: Английский

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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

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Strategies to Modulate the Copper Oxidation State Toward Selective C₂₊ Production in the Electrochemical CO₂ Reduction Reaction

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 12, 2024

Abstract The electrochemical reduction of CO 2 to form value‐added chemicals receives considerable attention in recent years. Copper (Cu) is recognized as the only element capable electro‐reducing into hydrocarbons with two or more carbon atoms (C 2+ ), but low product selectivity Cu‐based catalyst remains a major technological challenge overcome. Therefore, identification structural features catalysts great importance for highly selective production C products (ethylene, ethanol, n‐propanol, etc.), and oxidation state Cu species found critical performance. This review introduces efforts fine‐tune increase capture produce specific compounds, intention greatly expediting advance designs. It also points remaining challenges fruitful research directions development that can shape practical technology.

Language: Английский

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Seawater electrolysis for fuels and chemicals production: fundamentals, achievements, and perspectives

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(14), P. 7455 - 7488

Published: Jan. 1, 2024

Seawater electrolysis for the production of fuels and chemicals involved in onshore offshore plants powered by renewable energies offers a promising avenue unique advantages energy environmental sustainability. Nevertheless, seawater presents long-term challenges issues, such as complex composition, potential side reactions, deposition poisoning microorganisms metal ions, well corrosion, thus hindering rapid development technology. This review focuses on value-added (hydrogen beyond) fine through electrolysis, step towards sustainable carbon neutrality. The principle related are first introduced, redox reaction mechanisms summarized. Strategies operating anodes cathodes including application chloride- impurity-resistant electrocatalysts/membranes reviewed. We comprehensively summarize (hydrogen, monoxide, sulfur, ammonia,

Language: Английский

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Efficient Capture and Electroreduction of Dilute CO₂ into Highly Pure and Concentrated Formic Acid Aqueous Solution

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(20), P. 14349 - 14356

Published: May 14, 2024

High-purity CO2 rather than dilute (15 vol %, CO2/N2/O2 = 15:80:5, v/v/v) similar to the flue gas is currently used as feedstock for electroreduction of CO2, and liquid products are usually mixed up with cathode electrolyte, resulting in high product separation costs. In this work, we showed that a microporous conductive Bi-based metal–organic framework (Bi-HHTP, HHTP 2,3,6,7,10,11-hexahydroxytriphenylene) can not only efficiently capture from under humidity but also catalyze adsorbed into formic acid current density 80 mA cm–2 Faradaic efficiency 90% at very low cell voltage 2.6 V. Importantly, performance atmosphere was close high-purity atmosphere. This first catalyst maintain exceptional eCO2RR presence both O2 N2. Moreover, by using feedstock, 1 working electrode coating Bi-HHTP continuously produce 200 mM aqueous solution relative purity 100% least 30 h membrane assembly (MEA) electrolyzer. The does contain electrolytes, such highly concentrated pure be directly an electrolyte fuel cells. Comprehensive studies revealed might ascribed ability micropores on lower Gibbs free energy formation key intermediate *OCHO open Bi sites.

Language: Английский

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Advancements in Electrocatalytic Nitrogen Reduction: A Comprehensive Review of Single‐Atom Catalysts for Sustainable Ammonia Synthesis

Small, Journal Year: 2024, Volume and Issue: 20(32)

Published: March 22, 2024

Abstract Electrocatalytic nitrogen reduction technology seamlessly aligns with the principles of environmentally friendly chemical production. In this paper, a comprehensive review recent advancements in electrocatalytic NH 3 synthesis utilizing single‐atom catalysts (SACs) is offered. Into research and applications three categories SACs: noble metals (Ru, Au, Rh, Ag), transition (Fe, Mo, Cr, Co, Sn, Y, Nb), nonmetallic (B) context ammonia delved. In‐depth insights into material preparation methods, coordination patterns, characteristics reaction (NRR) are provided. The systematic comparison capabilities various SAC types offers framework for their integration NRR. Additionally, challenges, potential solutions, future prospects incorporating SACs endeavors discussed.

Language: Английский

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