Enhanced catalytic activity of noble metal@borophene/WS2 heterojunction for hydrogen evolution reaction

Applied Surface Science, Journal Year: 2024, Volume and Issue: unknown, P. 161321 - 161321

Published: Sept. 1, 2024

Language: Английский

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ReS2/CoS heterostructure catalysts for electrochemical application in hydrogen evolution and supercapacitor

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 61, P. 1212 - 1219

Published: March 8, 2024

Language: Английский

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Vertically Oriented FeNiO Nanosheet Array for Urea and Water Electrolysis at Industrial-Scale Current Density

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(22), P. 8340 - 8352

Published: May 17, 2024

In addressing the challenging quest for an efficient electrocatalyst in electrochemical water splitting, we demonstrate Fe-doped NiO nanosheet array anchored on nickel foam synthesized via a two-step process. Demonstrating exceptional performance alkaline electrolyte, FeNiO catalysts exhibit oxygen evolution reaction with low potential of 1.52 V vs RHE and urea oxidation 1.32 @ 10 mA/cm2. The bifunctional electrolyzer generates mA/cm2 current at 1.95 1.59 electrolysis ambient temperature. Promisingly, catalyst based hydrogen industrial-scale density 400 cell voltage just 1.91 concentrated electrolyte elevated temperature (80 °C) due to dimensionally stable robust behavior self-supported catalyst. activation energy is found be 52 kJ/mol. present also 300 4 M KOH 50 °C more than 20 h. synergy induced by Fe doping into activates catalytic sites, expediting charge transfer kinetics. research report highlights as practical cost-effective approach green production splitting.

Language: Английский

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Self-Supported Mn-Ni₃Se₂ Electrocatalysts for Water and Urea Electrolysis for Energy-Saving Hydrogen Production

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(9), P. 11440 - 11452

Published: Feb. 24, 2024

Recently, there has been a huge research interest in developing robust, efficient, low-cost, and earth-abundant materials for water urea electrolysis hydrogen (H2) generation. Herein, we demonstrate the facile hydrothermal synthesis of self-supported Mn-Ni3Se2 on Ni foam overall splitting under wide pH conditions. With optimized concentration Mn Ni3Se2, overpotential evolution, oxygen oxidation is significantly reduced by an enhanced electrochemical active surface area. Different electronic states metal elements also produce synergistic effect, which accelerates rate reaction electrolysis. Owing to chemical robustness, Mn-doped Ni3Se2 shows excellent stability long time duration, important its practical applications. A two-electrode electrolyzer exhibits low cell voltages 2.02 1.77 V electrolysis, respectively, generate current density 100 mA/cm2. Finally, prepared nanostructured Mn-Ni3Se2@NF acts as electrocatalyst conditions energy-saving production wastewater treatment.

Language: Английский

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Solar-driven green hydrogen generation for revolutionizing the future of zero-carbon energy

Fuel, Journal Year: 2024, Volume and Issue: 375, P. 132538 - 132538

Published: July 20, 2024

Language: Английский

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Self‐Powered Hydrogen Production From Seawater Enabled by Trifunctional Exfoliated PtTe Nanosheet Catalysts

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: April 15, 2024

Abstract Seawater electrolysis (SWE) is proposed to be a promising approach green hydrogen (H 2 ) production but its large‐scale deployment faces challenges because of the anodic competing chlorine evolution reaction (CER) and high energy consumption. To address these challenges, innovative hybrid SWE systems have recently emerged, able mitigate interference CER substantially reduce electrical needed. Herein, preparation 2D layered PtTe nanosheets (e‐PtTe NSs) using liquid‐phase exfoliation method reported, which show outstanding electrocatalytic performance for (HER), hydrazine oxidation (HzOR), oxygen reduction reactions (ORR) in seawater. Using e‐PtTe NSs as trifunctional catalysts, two are demonstrated: 1) hydrazine‐assisted acid‐alkaline dual‐electrolyte seawater electrolyzer enabled by bipolar membrane (BPM‐OHzSWE), can simultaneously produce H generate electricity through harvesting electrochemical neutralization leveraging advantage HzOR over (OER) terms potentials; 2) system powered direct fuel cell (DHzFC), realize self‐powered production. These novel substantial promise energy‐saving cost‐effective from

Language: Английский

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Nickel-based coatings as highly active electrocatalysts for hydrogen evolution reaction: A review on electroless plating cost-effective technique

Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 40, P. e00991 - e00991

Published: May 23, 2024

Language: Английский

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Fe2B/MXene@NF Electrocatalyst for Efficient Water Splitting and Green Hydrogen Production at High Current Densities

Renewable Energy, Journal Year: 2025, Volume and Issue: unknown, P. 122370 - 122370

Published: Jan. 1, 2025

Language: Английский

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Synergistic effect of In2+ doping in MoS2 nanosheets for rapid hydrogen production

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 314, P. 118032 - 118032

Published: Jan. 21, 2025

Language: Английский

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ZIF-67 derived superhydrophilic Fe-CoP/Ni2P@NC to construct self-supported electrode for boosting electrochemical water splitting

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179796 - 179796

Published: March 1, 2025

Language: Английский

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