Enhancing the Stability of Cu‐Based Electrocatalyst via Fe Alloy in Electrocatalytic Formaldehyde Oxidation with Long Durability

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 13, 2024

Abstract Electrocatalytic formaldehyde oxidation with metal Cu electrocatalyst has attracted significant interest since it can produce H 2 at the anode and make possible to construct a bipolar hydrogen production cell low voltage. However, activity of will be greatly weakened after oxidizing + or 2+ . Here, CuFe bimetallic catalyst is developed efficiently catalyze electro‐oxidation process HCHO potential 0.10 V RHE current density 100 mA cm −2 It confirmed that introducing Fe in regulate electron configuration prevent 0 improve stability catalysts. The introduction reduce energy barrier reaction process, C─H bond more easily split on CuFe. A device constructed by combining anodic cathodic evolution. 500 achieved voltage 0.6 V. faradaic efficiency ≈100% stable for ≈50 h. research provides promising path toward secure, effective, expandable generation high‐purity both electrodes.

Язык: Английский

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Amorphous Ru-Based Metallene with Monometallic Atomic Interfaces for Electrocatalytic Hydrogen Evolution in Anion Exchange Membrane Electrolyzer

Опубликована: Янв. 1, 2024

Язык: Английский

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Effects of B Addition on Microstructure Evolution and Efficient Hydrogen Evolution of Self‐Supported Cu–Fe–P Immiscible Alloy

Advanced Engineering Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 8, 2024

Herein, the effect of B elements on microstructure and catalytic properties Cu–31.5Fe–4.5P immiscible alloy is systematically investigated. After characterizations, it found that are mainly concentrated in Fe x P (Fe 2 P, 3 P) particles, which affect Marangoni motion particles. With concentration content increasing to 0.75%, diameter size second‐phase particles alloys first refined then coarsened, with 0.25% has finest particle proportion sizes ranging from 1 10 μm reaches 97%. The electrochemical characterization dealloyed specimens shows overpotential Cu–Fe–P containing 193 mV at a current density mA cm −2 0.5 m H SO 4 solution. excellent performance might be attributed increase obviously specific surface area significant electron transfer.

Язык: Английский

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Liquid metal based flowable regenerative catalyst for electrochemical nitrate reduction

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156005 - 156005

Опубликована: Сен. 1, 2024

Язык: Английский

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Separator modification with a high-entropy hydroxyphosphate, Co0.29Ni0.15Fe0.33Cu0.16Ca3.9(PO4)3(OH), for high-performance Li-S batteries

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 679, С. 1076 - 1083

Опубликована: Окт. 12, 2024

Язык: Английский

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