The future of alkaline water splitting from the perspective of electrocatalysts-seizing today's opportunities

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216190 - 216190

Published: Sept. 5, 2024

Language: Английский

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Hollow Structure Derived Phosphide Nanosheets for Water Oxidation

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 30, 2024

Avoiding the stacking of active sites in catalyst structural design is a promising route for realizing oxygen evolution reaction (OER). Herein, using CoFe Prussian blue analoge cube with hollow structure (C-CoFe PBA) as derived support, highly effective Ni

Language: Английский

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Alkaline Hydrogen Evolution Reaction Electrocatalysts for Anion Exchange Membrane Water Electrolyzers: Progress and Perspective

JACS Au, Journal Year: 2024, Volume and Issue: 4(12), P. 4639 - 4654

Published: Nov. 21, 2024

For the aim of achieving carbon-free energy scenario, green hydrogen (H

Language: Английский

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Ohmic Contact Heterostructures Immobilized Pt Single Atoms for Boosting Alkaline Hydrogen Evolution Reaction

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Abstract Pt single‐atoms catalysts have been widely confirmed as ideal electrocatalysts for high‐efficiency hydrogen evolution reaction (HER), but their activity and durability at high current density remain great challenges, especially in alkaline media. Herein, a unique Ohmic contact heterostructure is fabricated by integrating Ni NiO to immobilize (Ni‐NiO‐Pt) via Pt‐O 4 coordination boosting the HER. Owing transient temperature pressure laser ablation process, heterojunctions are constructed interfaces between metal core nanoporous semiconducting shell with adequate oxygen vacancies. The large work function difference triggers electron transfer from Pt‐decorated NiO, which dramatically eliminates conduction impedance regulates charge redistribution. Density functional theory calculation unveils that multiple regulations of energy barrier redistribution on endow Ni‐NiO‐Pt outstanding electrical conductivity favorable binding energy. Consequently, displays superior HER performances an overpotential 23.54 mV 10 mA cm −2 protruding 75 h 500 , drastically outperforming commercial Pt/C most reported electrocatalysts. immobilization opens up avenue toward rational design

Language: Английский

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Ni-MOF-derived NiPt dual atoms self-supporting electrode by inkjet printing for hydrogen evolution reaction

Carbon, Journal Year: 2025, Volume and Issue: 235, P. 120098 - 120098

Published: Feb. 6, 2025

Language: Английский

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High-Throughput Screening of Selective Bimetallic Atomic Catalysts for Self-Adaptive Matched Electrochemical Reduction

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Due to the impediments of spatial and temporal resolution, comprehension microdynamic processes still remains limited, which seriously hinders advancement catalyst regulating expansion application. Herein, efficient selective bimetallic atomic electrode interface was cultivated via high-throughput screening, achieving self-adaptive parallel electrochemical reduction Cu(II) As(III). Combined in situ X-ray absorption fine structure (XAFS) spectroscopy coordination field theory verified Ni-Cu specific energy level matching promoted by permitted d-d transition also reproduced microscopic dynamic process. Additionally, it discovered that Fe-As bonding barrier smallest potential-determining step (1.40 eV) were derived from linear shift main s p peaks key arsenic intermediates high-energy orbital. This work offers insights into transient reaction dynamics methods theoretical simulations, broadens design multisite catalysts.

Language: Английский

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Anchoring Pt single atoms on 3D flower-like NiMoP via Pt Ni bonding with enhanced hydrogen evolution reaction

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 688, P. 233 - 240

Published: Feb. 24, 2025

Language: Английский

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Negative‐Valent Platinum Stabilized by Pt─Ni Electron Bridges on Oxygen‐Deficient NiFe‐LDH for Enhanced Electrocatalytic Hydrogen Evolution

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

The unique hydrogen adsorption characteristics of negatively charged platinum play a crucial role in enhancing the electrocatalytic evolution reaction. However, atomically dispersed Pt atoms are typically anchored to support through non-metallic atom bonds, resulting high oxidation state. Here, oxygen-deficient NiFe-LDH. Electron transfer between and NiFe-LDH occurs primarily Pt─Ni bonds rather than conventional Pt─O bonds. Oxygen vacancies promote additional electron from Ni Pt, thereby reducing valence state adsorption. Meanwhile, elevated increases catalyst's hydrophilicity reduces energy barrier for hydrolysis dissociation. This catalyst demonstrates remarkably low overpotentials 4 9 mV at 10 mA cm-2 1 m KOH KPi, respectively. Additionally, its mass activity is 51.5 23.7 times higher that Pt/C, study presents novel strategy performance rational design coordination environments electronic structures supported metal catalysts.

Language: Английский

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Efficient surface engineering via in situ integration of Pt active sites on exfoliated g-C3N4 for enhanced dual functionality: Clean energy production and pharmaceutical degradation

Materials Science in Semiconductor Processing, Journal Year: 2025, Volume and Issue: 194, P. 109553 - 109553

Published: April 9, 2025

Language: Английский

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Bimetallic Ni and Pt single atoms anchored on nitrogen–phosphorus doped porous carbon fibers to achieve significant electrocatalytic hydrogen evolution

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 349, P. 127909 - 127909

Published: May 10, 2024

Language: Английский

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