Zinc Hollow-Fiber Penetration Electrode Promotes Ampere-Level CO₂ Electroreduction for Viable Applications

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 4259 - 4269

Опубликована: Фев. 25, 2025

Язык: Английский

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Advances and Challenges of Carbon‐Free Gas‐Diffusion Electrodes (GDEs) for Electrochemical CO₂ Reduction

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 26, 2024

Abstract Electrochemical CO 2 reduction reaction (CO RR) coupled with renewable electricity holds promises for efficient mitigation of carbon emission impacts on the environment and turning into valuable chemicals. One important task in RR development is design fabrication electrodes stable operation long term. Gas‐diffusion (GDEs) have been employed to continuously feed electrolyzers. Despite significant advances GDE tailoring properties, present GDEs often suffer from critical issue flooding due electrowetting carbon‐based substrates, which hinders transition industrial application. To address flooding, intrinsically hydrophobic polymeric substrates recently fabricated shown promising performances. Herein, challenges associated carbon‐free are reviewed RR. This review first briefly outlines electrolyzers basics. Through discussion around shortcomings conventional GDEs, most recent efforts resolve summarized. Subsequently, advances, advantages, elaborated. Finally, priorities future studies suggested, aim support advancement scale‐up extend them other electrochemical systems where gas electrolyte contact.

Язык: Английский

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Atomically dispersed catalysts: for the efficient and stable industrial electrosynthesis of H₂O₂

Energy & Environmental Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This review focuses on the sustainable synthesis of hydrogen peroxide (H 2 O ) via 2e − ORR. It emphasizes ADC design strategies. bridges fundamental research and industrial practices to drive advancement green chemical synthesis.

Язык: Английский

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Surface Amorphization of Bismuth for Efficient Acidic CO₂ Electrolysis

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

The electrochemical conversion of CO2 into valuable chemicals under acidic conditions provides a promising solution to challenges, such as carbon loss and catalyst instability caused by carbonate precipitation. However, electroreduction remains severely constrained intense competition from the hydrogen evolution reaction (HER) sluggish activation kinetics. Here, we report bismuth (Bi) nanoparticle with an amorphous surface layer (a-Bi), which demonstrates high catalytic activity selectivity toward formic acid (HCOOH) formation in electrolytes. achieves impressive Faradaic efficiencies for HCOOH production, exceeding 90% over wide current density range (-100 -1000 mA cm-2) corresponding potentials ranging -1.24 -1.75 V versus reversible electrode (vs RHE). Notably, partial reaches value more than -900 cm-2 at vs RHE. Furthermore, a-Bi exhibited stability 52 h production rates (-500 alongside single-pass efficiency approximately 85%. In situ spectroscopy theoretical simulation revealed that amorphization significantly enhances adsorption lowers hydrogenation barrier, thereby accelerating CO2RR kinetics while effectively suppressing HER. This work presents facile crystallization engineering strategy address critical advancing sustainability scalability processes.

Язык: Английский

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Creating Abundant Gas–Solid–Liquid Triple‐Phase Interfaces in Hierarchical Porous Structure for Efficient Electrochemical CO₂ Reduction

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Июнь 2, 2025

Abstract Gas–solid–liquid triple‐phase interfaces are essential for improving the performance of industrial carbon dioxide (CO 2 ) electrolyzers by facilitating mass transfer process. Yet there still lacks experimental approaches and theoretical understanding in creation stable at catalyst layer gas diffusion electrodes. Here, hierarchical porous CuS microtubes assembled interconnected hexagonal nanosheets exposing highly active (001) facet developed efficient electrochemical CO reduction reaction RR). We demonstrate how structure catalysts aided combined simulation results. Compared to nanoparticle‐assembled microtube counterpart, nanosheet‐assembled exhibit superior intrinsic toward production formate. More importantly, is found be selective formate creating abundant gas–solid–liquid interface. A significant drop selectivity an increase resistance observed when breaking tubular architecture. Simulation results further that electrolyte would quickly penetrate into due capillary force, which promotes formation on mesoporous wall as sites during RR.

Язык: Английский

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Copper(I) and cobalt(II) frameworks with a tetraphenylethene-imidazole ligand for electroreduction CO2 to CH4

CrystEngComm, Год журнала: 2024, Номер 26(45), С. 6465 - 6471

Опубликована: Янв. 1, 2024

Two new MOFs with different metal centers were synthesized and applied to the electroreduction of CO 2 . Cu-MOF was found show capacity for electrocatalytic conversion CH 4 , while Co-MOF is unsuitable due its low stability.

Язык: Английский

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