Generating highly active oxide-phosphide heterostructure through interfacial engineering to break the energy scaling relation toward urea-assisted natural seawater electrolysis

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 97, P. 687 - 699

Published: July 14, 2024

Language: Английский

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Metallic Cu-incorporated NiFe layered double hydroxide nanosheets enabling energy-saving hydrogen generation from chlorine-free seawater electrolysis coupled with sulfion upcycling

Fuel, Journal Year: 2024, Volume and Issue: 367, P. 131506 - 131506

Published: March 19, 2024

Language: Английский

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Boosting Urea-Assisted Natural Seawater Electrolysis in 3D Leaf-Like Metal–Organic Framework Nanosheet Arrays Using Metal Node Engineering

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(22), P. 28625 - 28637

Published: May 20, 2024

Metal node engineering, which can optimize the electronic structure and modulate composition of poor electrically conductive metal–organic frameworks, is great interest for electrochemical natural seawater splitting. However, mechanism underlying influence mixed-metal nodes on electrocatalytic activities still ambiguous. Herein, a strategic design comprehensively demonstrated in mixed Ni Co metal redox-active centers are uniformly distributed within NH2–Fe-MIL-101 to obtain synergistic effect overall enhancement activities. Three-dimensional metallic MOF nanosheet arrays, consisting three different nodes, were situ grown foam as highly active stable bifunctional catalyst urea-assisted A well-defined NH2–NiCoFe-MIL-101 reaches 1.5 cm–2 at 360 mV oxygen evolution reaction (OER) 0.6 295 hydrogen (HER) freshwater, substantially higher than its bimetallic monometallic counterparts. Moreover, electrode exhibits eminent catalytic activity stability seawater-based electrolytes. Impressively, two-electrode alkaline electrolysis cell based needs only 1.56 yield 100 mA cm–2, much lower 1.78 V cells superior long-term current density 80 h.

Language: Английский

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Synthesis of polymetallic oxide nanoarrays as efficient hydrogen evolution reaction electrocatalyst for alkaline seawater and urea splitting

Fuel, Journal Year: 2024, Volume and Issue: 372, P. 132281 - 132281

Published: June 21, 2024

Language: Английский

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Innovations in seawater electrolysis: From fundamental challenges to practical applications

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 122, P. 289 - 331

Published: April 1, 2025

Language: Английский

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Metal-Organic Framework (MOF) Based Materials: Promising Candidates for Electrocatalytic Seawater Splitting

Materials Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 8(19), P. 3136 - 3149

Published: Jan. 1, 2024

MOF-based materials for seawater electrolysis have been reviewed with a focus on structure–property–performance.

Language: Английский

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Ligand engineering enhances (photo) electrocatalytic activity and stability of zeolitic imidazolate frameworks via in-situ surface reconstruction

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 30, 2024

The current limitations in utilizing metal-organic frameworks for (photo)electrochemical applications stem from their diminished electrochemical stability. In our study, we illustrate a method to bolster the activity and stability of (photo)electrocatalytically active through ligand engineering. We synthesize four distinct mixed-ligand versions zeolitic imidazolate framework-67, conduct comprehensive investigation into structural evolution self-reconstruction during electrocatalytic oxygen reactions. contrast conventional single-ligand ZIF, where framework undergoes complete transformation CoOOH via stepwise oxidation, ligand-engineered manage preserve fundamental structure by in-situ forming protective cobalt (oxy)hydroxide layer on surface. This surface reconstruction facilitates both conductivity catalytic one order magnitude considerably enhances work highlights vital role engineering designing advanced stable photo- electrocatalysis.

Language: Английский

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Highly Electron-Deficient Ternary Metal Fluoride Nanocages for Overall Urea-Assisted Water Electrolysis

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Language: Английский

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Crystalline-to-Amorphous Transformation and Charge Redistribution Induced by Anion–Cation Double Substitution on 3D Ni(OH)₂ Ultrathin Nanosheet Arrays Enable Urea-Assisted Energy-Saving Hydrogen Production

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(31), P. 11638 - 11649

Published: July 25, 2024

Amorphous catalysts possess substantially better catalytic activity toward water splitting than their crystalline counterparts. However, researchers have thus far focused on the rather amorphous phase due to complexity of synthesis and characterization. Here, crystalline-to-amorphous transformation charge redistribution induced by Fe F double substitution 3D Ni(OH)2 ultrathin nanosheet arrays are reported as a highly active stable bifunctional electrocatalyst for urea-assisted electrolysis. It is unveiled that synergistic effect dopant incorporation not only alters electronic configuration improved intrinsic but also creates abundant sites rich in Ni3+, which responsible significantly accelerated reaction kinetics. First, our findings show collected F–Fe–Ni(OH)2 catalyst exhibits excellent urea oxidation (UOR) with an overpotential 1.42 V generate 250 mA cm–2. Then, as-prepared can play dual role whole cell test, presenting voltage 1.68 V, 140 mV lower overall water-splitting system at 200 This work contributes novel approach synthesizing Ni-based materials electrocatalysts enhancement activities UOR hydrogen evolution reaction.

Language: Английский

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Controlled synthesis of the M doped (M = Fe, Cu, Zn, Mn)-Co4S3/Ni3S2 catalyst with high electrocatalytic performance for hydrogen evolution reaction in seawater and urea

Fuel, Journal Year: 2024, Volume and Issue: 381, P. 133314 - 133314

Published: Oct. 2, 2024

Language: Английский

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