MXene-Based Hierarchical Electron Coupling Engineering of F-Doped NiFe LDH/MOF-74 Electrocatalysts for Efficient Overall Water Splitting

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 2561 - 2575

Опубликована: Янв. 28, 2025

Язык: Английский

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Nanoflower Mn_xNi_2−xP as efficient bifunctional catalyst for hydrogen production with urea‐assisted energy‐saving in alkaline freshwater and seawater

EcoEnergy, Год журнала: 2025, Номер unknown

Опубликована: Янв. 5, 2025

Abstract To achieve efficient and stable hydrogen production while addressing the corrosive effects of seawater on electrodes, integrating energy‐saving urea oxidation reaction (UOR) with evolution (HER) presents a promising low‐energy solution. However, developing low‐cost, high‐performance bifunctional electrocatalysts for both HER UOR remains significant challenge. In this work, we prepared featuring Mn x Ni 2− P nanoflower structures grown nickel foam using simple hydrothermal phosphatization method. These catalysts demonstrated excellent performance in alkaline freshwater seawater, notably low overpotentials 251 257 mV HER, 1.33 1.37 V UOR. Combining its activity two‐electrode system, an energy saving 0.19 potential compared to water electrolysis through can be acquired reach 100 mA cm −2 current density. Moreover, catalyst also maintains fairly after long‐term testing, indicating production. Our study reveals that synergistic interaction between metals enhances electronic structure electrocatalysts, significantly boosting activities. Additionally, doping alters morphological structure, creating nanoflowers abundant active sites, nickel‐iron phosphides improve catalyst's corrosion resistance seawater. This work provides valuable insights into design non‐precious metal splitting, combining urea‐assisted energy‐saving.

Язык: Английский

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Dual noble-metal-free cocatalysts on cobalt nickel oxide nanocages for boosting photocatalytic oxidation desulfurization

Journal of Catalysis, Год журнала: 2025, Номер unknown, С. 116120 - 116120

Опубликована: Апрель 1, 2025

Язык: Английский

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Recent advances in Ni-based electrocatalysts for low-energy hydrogen production via alternative pathways to water electrolysis

Energy Materials, Год журнала: 2025, Номер 5(8)

Опубликована: Май 6, 2025

Energy-efficient water electrolysis is one of the most promising techniques for generating green hydrogen as a carbon-free energy source. As half-reaction splitting, oxygen evolution reaction kinetically sluggish, leading to large thermodynamic potential gaps compared reaction. In terms cost-effective generation, mitigating this overpotential challenging obstacle, but it remains hurdle overcome. It necessary advance energy-saving production by substituting with an thermodynamically favorable anodic Additionally, depending on specific small molecules used oxidation reaction, possible reduce environmentally harmful substances and produce value-added chemicals. Nickel-based electrocatalysts have received growing attention their application in electrochemical reactions due affordability, versatility structural tuning, ability function active sites bond formation cleavage. The purpose paper probe how morphology, structure, composition these catalysts affect electrocatalyst performance molecule oxidation. Explaining relationships can accelerate development sustainable identifying design principles high-performance nickel-based electrocatalysts.

Язык: Английский

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Heterogeneous trimetallic phosphides with robust synergistic effect as bifunctional electrocatalysts for alkaline overall water and seawater splitting

Journal of Colloid and Interface Science, Год журнала: 2025, Номер unknown, С. 138089 - 138089

Опубликована: Июнь 1, 2025

Язык: Английский

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g-C₃N₄ modified by cobalt–nickel bimetallic phosphide for highly efficient photocatalytic removal of methylene blue

New Journal of Chemistry, Год журнала: 2024, Номер 48(34), С. 15149 - 15157

Опубликована: Янв. 1, 2024

Graphitic carbon nitride (gCN) has shown great potential in photocatalysis. Developing suitable cocatalysts is a critical way to enhance gCN's photocatalytic performance.

Язык: Английский

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