Boosting the catalytic performance of spinel sulphides by incorporating g-C3N4 for enhanced oxygen evolution reaction (OER)

Diamond and Related Materials, Год журнала: 2025, Номер 153, С. 111980 - 111980

Опубликована: Янв. 13, 2025

Язык: Английский

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Unleashing Potential of BNiO-300 as a Superior Electrocatalyst for Overall Water Splitting

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Язык: Английский

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A Super‐Chlorophobic Yet Weak‐Reconstructed Electrocatalyst by Fluorination Engineering toward Chlorine Oxidation‐Free and High‐Stability Seawater Electrolysis

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Abstract Direct seawater electrolysis is key for achieving sustainable green‐hydrogen production and transitioning toward a decarbonized energy system. However, its performance limited by significant challenges, mainly catalyst instability, which caused excessive reconstruction, low catalytic activity, aggressive chlorine‐corrosion. Herein, high‐electronegativity F introduced into NiFe layered double‐hydroxide (F‐NiFe‐LDH) through fluorination engineering to induce electron‐deficient regions around Ni, thus creating abundant intrinsic high‐valence Ni sites. Correspondingly, the features of weak reconstruction accompanied high stability, chlorophobic surface, high‐activity lattice oxygen are produced on F‐NiFe‐LDH, confirmed detailedly experiment theory. Consequently, F‐NiFe‐LDH exhibits superior evolution reaction (OER) activity with overpotentials 306 375 mV reach 500 mA cm −2 at alkaline simulated seawater, respectively. Also, it demonstrates chlorine‐corrosion resistance, along ultra‐stability over 1000 h without degradation, structural collapse, or chlorine oxidation reaction. Furthermore, an anion exchange membrane electrolyzer assembled anode shows consumption only 4.87 kWh Nm −3 hydrogen production. This work provides inspiration designing corrosion‐resistance electrocatalysts aimed oxidation‐free electrolysis, simultaneously achieve stability OER activity.

Язык: Английский

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Sustainable Hydrogen Generation Facilitated through Ethylene Glycol Oxidation in Fresh/Seawater with Cobalt- and Iron-Based Fluorinated Nanosheets

Energy & Fuels, Год журнала: 2024, Номер 38(22), С. 22393 - 22401

Опубликована: Ноя. 5, 2024

Replacing the kinetically sluggish and energy-intensive oxygen evolution reaction (OER) at anode with oxidation of more thermodynamically favorable small organic molecules is a promising strategy for boosting hydrogen production. This study focuses on sustainable generation cathode facilitated by ethylene glycol (EGOR) anode, coupled production value-added formate. For this, we designed deposited cobalt- iron-based fluorinated two-dimensional (2D)-nanosheets (2D-CoFe@OF) through straightforward hydrothermal method onto nickel foam substrate (NF). The resulting 2D-CoFe@OF/NF exhibits an anodic potential that 100 mV lower in 0.5 M EG-added 1.0 KOH electrolyte to achieve benchmark electrolysis current density 10 mA cm–2, compared pure electrolyte. Additionally, assembling two identical 2D-CoFe@OF/NF||2D-CoFe@OF/NF electrode-based electrolyzers resulted 150 reduction operating cell voltage when electrolyzing particularly OER was replaced EGOR, thereby demonstrating significant improvement energy efficiency. Under this condition, electrolyzer demonstrated nearly 100% Faradaic efficiency (HER). Furthermore, practical application system studied EG-seawater suggests its replace freshwater abundant seawater, expanding horizon generation. study, thus, highlights 2D-CoFe@OF nanosheets EGOR advancing green technology toward future.

Язык: Английский

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Self-grown photocatalytic metal-organic frameworks on electrocatalytic NiFe layered double hydroxides as bifunctional photoelectrocatalyst for efficient overall water splitting

Journal of Power Sources, Год журнала: 2025, Номер 633, С. 236398 - 236398

Опубликована: Фев. 4, 2025

Язык: Английский

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Inverse spinel Fe-NiCo2O4/NiO nanocomposite supported on defect-rich P-rGO sheets for enhanced OER activity

Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 177856 - 177856

Опубликована: Ноя. 1, 2024

Язык: Английский

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Study of magnetism and electrocatalytic properties in perovskite DyCrO3

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 178934 - 178934

Опубликована: Янв. 1, 2025

Язык: Английский

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Heterostructure engineering of a N-doped NiMoO4 two-phase electrocatalyst for industrial large-scale synthesis of 2, 5-furan dicarboxylic acid

New Journal of Chemistry, Год журнала: 2025, Номер 49(8), С. 3218 - 3226

Опубликована: Янв. 1, 2025

In this work, we construct a N-doped α,β-NiMoO 4 electrode for enhancing the selective electrooxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furan dicarboxylic acid (FDCA).

Язык: Английский

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Synergistic Effect between Co₂P/Fe₂P Nanoparticles and NiFe Layered Double Hydroxides Promotes Urea Oxidation Reaction-Assisted Hydrogen Production

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Язык: Английский

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Development of Co–N–C-Deposited Nickel Foam for Energy-Saving Hydrogen Production via Electrocatalytic Conversion of Glycerol

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Язык: Английский

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