Insights into the pH effect on hydrogen electrocatalysis

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

This review systematically provides various insights into the pH effect on hydrogen electrocatalysis, and thus providing a reference for future development of electrocatalysis based these insights.

Language: Английский

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Yttrium-doped NiMo-MoO2 heterostructure electrocatalysts for hydrogen production from alkaline seawater

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 17, 2025

Language: Английский

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Dual Doping in Precious Metal Oxides: Accelerating Acidic Oxygen Evolution Reaction

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(4), P. 1582 - 1582

Published: Feb. 13, 2025

Developing a highly active and stable catalyst for acidic oxygen evolution reactions (OERs), the key half-reaction proton exchange membrane water electrolysis, has been one of most cutting-edge topics in electrocatalysis. A dual-doping strategy optimizes electronic environment, modifies coordination generates vacancies, introduces strain effects through synergistic effect two elements to achieve high catalytic performance. In this review, we summarize progress dual doping RuO2 or IrO2 OERs. The three main mechanisms OERs are dicussed firstly, followed by detailed examination development history catalysts, from experimentally driven systems machine learning (ML) theoretical screening systems. Lastly, provide summary remaining challenges future prospects, offering valuable insights into

Language: Английский

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Advancing the Understanding of Oxygen Vacancies in Ceria: Insights into Their Formation, Behavior, and Catalytic Roles

JACS Au, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Oxygen vacancies (OV's) in ceria (CeO2) are critical structural and electronic features that underpin ceria's remarkable oxygen storage capacity, redox catalytic performance, wide-ranging applications catalysis, solid oxide fuel cells, gas sensors. These vacancies, which result from the removal of atoms, enable dynamic exchange between its environment, profoundly influencing properties. The intricate surface structures play a key role determining properties interactions with supported metal catalysts. Over past decade, advancements state-of-the-art situ characterizations, first-principles calculations, emerging machine learning frameworks have significantly enhanced our understanding formation mechanisms, behaviors, roles OV's. This perspective highlights recent experimental theoretical progress research, emphasizing interplay reactive environments. Additionally, addresses challenges elucidating defect chemistry explores opportunities to tailor using multiscale modeling AI-driven methodologies.

Language: Английский

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Plasmonic Supramolecular Nanozyme‐Based Bio‐Cockleburs for Synergistic Therapy of Infected Diabetic Wounds

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

Published: Oct. 23, 2024

Abstract Diabetic wounds are a major devastating complication of diabetes due to hyperglycemia, bacterial invasion, and persistent inflammation, the current antibiotic treatments can lead emergence multidrug‐resistant bacteria. Herein, bimetallic nanozyme‐based biomimetic bio‐cocklebur (GNR@CeO 2 @GNPs) is designed synthesized for diabetic wound management by depositing spiky ceria (CeO ) shells gold nanoparticles (GNPs) on nanorod (GNR) nanoantenna. The plasmonic‐enhanced nanozyme catalysis self‐cascade reaction properties simultaneously boost two‐step enzyme‐mimicking catalytic activity GNR@CeO @GNPs, leading significant improvement in overall therapeutic efficacy rather than mere additive effects. Under glucose activation 808 nm laser irradiation, @GNPs material captures photons promotes transfer hot electrons from GNR GNPs into CeO , realizing “butterfly effect” consuming local glucose, overcoming limited antibacterial efficiency an individual PTT modality, providing substantial reactive oxygen species. In vitro vivo experiments demonstrate material's exceptional antibiofilm against Gram‐negative Gram‐positive bacteria, which reduce promote collagen deposition, facilitate angiogenesis, thereby accelerating healing. This study provides promising new strategy develop nanozymes with cascade mode antibiotic‐free synergistic treatment infected wounds.

Language: Английский

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Impact of oxygen vacancies on the catalytic activity of Ni/Co3O4 for CO2 methanation

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Anionic vacancy engineering in the development of electrocatalysts for hydrogen evolution reaction: a review

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(17), P. 5384 - 5413

Published: Jan. 1, 2024

How anions modulate the HER catalytic mechanism.

Language: Английский

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Shining light on atomic vacancies in electrocatalysts for boosted water splitting

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154235 - 154235

Published: July 26, 2024

Language: Английский

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Engineering Water-Lotus-like Iridium–Cobalt Carbonate Hydroxides on Plasma-Treated Carbon Fibers for Enhanced Electrocatalytic Oxygen Evolution

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(33), P. 15467 - 15476

Published: Aug. 6, 2024

The sluggish kinetics of the oxygen evolution reaction (OER) in alkaline water electrolysis remains a significant challenge for developing high-efficiency electrocatalytic systems. In this study, we present three-dimensional, micrometer-sized iridium oxide (IrO

Language: Английский

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Recent Progress in Cobalt‐Based Electrocatalysts for Efficient Electrochemical Nitrate Reduction Reaction

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

Published: Dec. 9, 2024

Abstract Electrochemical nitrate reduction reaction (NO 3 − RR) provides a sustainable and efficient way to producing ammonia at ambient condition denitrifying wastewater. However, NO RR is still confronted with some barriers present, because of the sluggish kinetics competitive hydrogen evolution (HER). Particularly, it requires highly robust selective electrocatalysts, which steers complex multistep reactions toward process. Among various Co‐based electrocatalysts demonstrate rapid kinetics, steady catalytic performance, suppressive impact on HER for RR, attracting more attention. In this review, focused Cobalt‐based design corresponding strategies are summarized. detail, these can be concisely classified into five categories, including oxides hydroxides, alloys, metal, heteroatom‐doped materials, metal organic frameworks derivatives. Each category extensively discussed, its concepts ideas clearly conveyed through appropriate illustrations figures. Finally, scientific technological challenges as well promising constructing system in future discussed. It expected that review provide valuable insights guidance rational ultimately advancing their applications industrial scenario high current density, stability, energy efficiency.

Language: Английский

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