Concentrated Formic Acid from CO₂ Electrolysis for Directly Driving Fuel Cell

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(13)

Published: Feb. 2, 2024

Abstract The production of formic acid via electrochemical CO 2 reduction may serve as a key link for the carbon cycle in economy, yet its practical feasibility is largely limited by quantity and concentration product. Here we demonstrate continuous at M an industrial‐level current densities (i.e., 200 mA cm −2 ) 300 h on membrane electrode assembly using scalable lattice‐distorted bismuth catalysts. optimized catalysts also enable Faradaic efficiency formate 94.2 % highest partial density 1.16 A , reaching rate 21.7 mmol −1 . To assess practicality this system, perform comprehensive techno‐economic analysis life assessment, showing that our approach can potentially substitute conventional methyl hydrolysis industrial production. Furthermore, resultant serves direct fuel air‐breathing cells, boasting power 55 mW exceptional thermal 20.1 %.

Language: Английский

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Shooting Three Birds with One Stone: Device Construction and Thermal Management for Simultaneous Photothermal Conversion Water Evaporation, Thermoelectric Generation and Photocatalytic Degradation

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(23)

Published: Jan. 28, 2024

Abstract It's a promising way to address the global freshwater crisis and energy shortage through solar‐driven devices with evaporate, degrade, generate electricity at same time. Low‐efficient light‐thermal conversions for multi‐usage limit application. This paper presents low‐cost melamine foam/TiO 2 /carbon black/bismuth (MF/TiO /CB/Bi) composite excellent activity simultaneously process photothermal water evaporation, pollutant degradation, thermoelectric output, namely‚ shooting three birds one stone. Under 1 sunlight light intensity, evaporation rate reach 4.235 kg m −2 h −1 , maximum electric power output of single module is 0.733 W . Meanwhile, Rhodamine B (RhB) solution 4.0 × 10 −4 mol L can be almost degraded within 60 min. Excellent performance benefits from enhanced adsorption by chemicals, 3D structure accepting more incident light, hydrophilic group reducing enthalpy. Combined simulation experiment, relationship between heat distribution thicknesses studied. When less than 1.98 cm, lateral temperature higher ambient temperature, thus additional cannot obtained. work provides facile novel method construction conversion materials multi‐functional, as new useful attempt solve fresh energy, well environmental pollution.

Language: Английский

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Plasma-assisted synthesis of porous bismuth nanosheets for electrocatalytic CO2-to-formate reduction

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 94, P. 19 - 28

Published: Feb. 28, 2024

The electrochemical carbon dioxide reduction (eCO2RR) to formate, driven by clean energy, is a promising approach for producing renewable chemicals and high-value fuels. Despite its potential, further development faces challenges due limitations in electrocatalytic activity durability, especially non-noble metal-based catalysts. Here, naturally abundant bismuth-based nanosheets that can effectively drive CO2-to-formate are prepared using the plasma-activated Bi2Se3 followed process. Thus-obtained Bi (P-BiNS) feature ultrathin structures high surface areas. Such nanostructures ensure P-BiNS with outstanding eCO2RR catalytic performance, highlighted current density of over 80 mA cm−2 formate Faradic efficiency >90%. Furthermore, catalysts demonstrate excellent durability stability without deactivation following 50 h operation. selectivity production also studied functional theory (DFT) calculations, validating importance efficacy stabilization intermediates (OCHO*) on surfaces. This study provides facile plasma-assisted developing high-performance low-cost electrocatalysts.

Language: Английский

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High‐Performance Bi‐Based Catalysts for CO₂ Reduction: In Situ Formation of Bi/Bi₂O₂CO₃ and Enhanced Formate Production

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract The unavoidable self‐reduction of Bismuth (Bi)‐based catalysts to zero‐valence Bi often results in detrimental adsorption OCHO * , leading unsatisfactory selectivity HCOOH the electroreduction carbon dioxide (CO 2 ). A novel Bi‐tannin (Bi‐TA) complex is developed, which undergoes situ reconstruction into a Bi/Bi₂O₂CO₃ phase during CO reduction. This reconstructed catalyst exhibits high activity and selectivity, achieving Faradaic Efficiency (FE) for formate production exceeding 90%, peaking at 96%. Operando spectroscopic theoretical analyses reveal that δ+ active site significantly enhances formation intermediate, crucial production. study offers promising approach overcoming limitations Bi‐based reduction formate.

Language: Английский

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Facile preparation of 2D nanomaterials by chelating agent-assisted electrodeposition for efficient electrochemical oxidation of biomass-derived aldehydes coupled with CO2 reduction

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125146 - 125146

Published: Feb. 1, 2025

Language: Английский

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In-situ electrochemical transformation of F-modified metallic bismuth for highly-efficient CO2 electroreduction and Zn-CO2 battery

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153105 - 153105

Published: June 13, 2024

Language: Английский

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Lattice-dislocated bismuth nanowires formed by in-situ chemical etching on copper foam for enhanced electrocatalytic CO2 reduction

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 349, P. 127926 - 127926

Published: May 11, 2024

Language: Английский

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Boosting and stabilizing the electrocatalytic reduction of carbon dioxide on Bi2O2CO3 via surface modification with p-aminobenzoic acid

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124451 - 124451

Published: July 27, 2024

Language: Английский

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A Regenerable Bi‐based Catalyst for Efficient and Stable Electrochemical CO2 Reduction to Formate at Industrial Current Densities

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(50)

Published: Aug. 22, 2024

Renewable electricity shows immense potential as a driving force for the carbon dioxide reduction reaction (CO

Language: Английский

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Copper as an Electron Hunter for Enhancing Bi₂O₂CO₃ Electrocatalytic CO₂ Conversion to Formate

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: July 17, 2024

Cu-doped Bi

Language: Английский

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