Rapid Surface Reconstruction of In₂S₃ Photoanode via Flame Treatment for Enhanced Photoelectrochemical Performance

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

Published: May 9, 2024

Abstract Surface reconstruction, reorganizing the surface atoms or structure, is a promising strategy to manipulate materials' electrical, electrochemical, and catalytic properties. Herein, rapid reconstruction of indium sulfide (In 2 S 3 ) demonstrated via high‐temperature flame treatment improve its charge collection The process selectively transforms In into diffusionless O layer with high crystallinity. Additionally, it controllably generates bulk sulfur vacancies within few seconds, leading surface‐reconstructed (sr‐In ). When using those sr‐In as photoanode for photoelectrochemical water splitting devices, these dual functions /bulk reduce recombination in region, thus improving photocurrent density stability. With optimized demonstrates significant 8.5 mA cm −2 at 1.23 V versus reversible hydrogen electrode (RHE), marking 2.5‐fold increase compared pristine (3.5 More importantly, exhibits an impressive 7.3 0.6 RHE iodide oxidation reaction. A practical scalable also showcased treatment. This work provides new insights engineering sulfide‐based semiconductors, making breakthrough developing efficient solar‐fuel energy devices.

Language: Английский

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Asymmetric CuS₁N₄ as Axial Polarization Site Trigger Rapid Charge Transport Channels for Boosting Photosynthesis of Ammonia

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

Published: Jan. 10, 2025

Abstract Effective photogenerated charge transfer and utilization have been regarded as a critical factor for achieving highly efficient photosynthesis of ammonia. However, the lacks necessary driving force in many catalysts limit directly transfer. In this work, Cu porphyrin‐based monoatomic layer (PML‐Cu) is modified on face‐centered cubic structured defective CdIn 2 S 4 via solvothermal reaction, with strong coupled interfacial Cu─S bond constructed. Owing to formation axial CuS 1 N polarization site, local asymmetric configuration can be created between PML‐Cu form potential difference, inducing rapid transport from bond. Meantime, electron‐enriched site beneficial stabilization * NHOH intermediate state, then lowering NHO→ rate‐limiting step energy barrier. Benefiting these features, PML‐Cu/CdIn exhibit good NH 3 generation rate 1979.0 µmol g −1 h , apparent quantum efficiency 8.56% at 380 nm 7.40% 450 nm, respectively. This work provides an accessible pathway designing coupling boost photocatalysis.

Language: Английский

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In-situ growth of flower-like CdIn2S4 on three-dimensional microspheres SnIn4S8 to form S-scheme heterojunction for efficient detection of tert-butylhydroquinone in edible oils

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161413 - 161413

Published: March 1, 2025

Language: Английский

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Ultrasound Induces Local Disorder of FeOOH on CdIn₂S₄ Photoanode for High Efficiency Photoelectrochemical Water Oxidation

Small, Journal Year: 2024, Volume and Issue: 20(33)

Published: March 27, 2024

The regulation of the crystal structure oxygen evolution cocatalyst (OEC) is a promising strategy for enhancing photoelectrochemical efficiency photoanodes. However, prevailing regulating approach typically requires multistep procedure, presenting significant challenge maintaining structural integrity and performance photoanode. Herein, FeOOH with local disordered directly grown on CdIn

Language: Английский

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Unravelling the charge transfer and kinetics of BiVO₄ by Co dopant and NiFeO_x co-catalyst for efficient photoelectrochemical water splitting

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The enhanced built-in electric field in CoO x /BiVO 4 and OER active sites NiFeO of Co–BiVO /NiFeO were favourable for charge transfer elemental reactions during PEC water splitting, with a remarkable photocurrent density 6.42 mA cm −2 .

Language: Английский

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Synergistic effects in the TiO2@ZnO/MoSe2 ternary composite photoanode for enhanced solar cell efficiency

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112786 - 112786

Published: April 1, 2025

Language: Английский

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Evoking plasmon electronic and thermal effects via Au nanoparticles for efficient photoelectrochemical water oxidation

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125391 - 125391

Published: April 1, 2025

Language: Английский

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Surface Reconstruction in Precious and Non‐Precious Metal‐Based Electrocatalysts for Oxygen Evolution Reaction: A pH‐Dependent Perspective

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: May 4, 2025

Abstract Extracting hydrogen by electrochemical water splitting is the most important pathway for green production at present whereas corresponding anodic oxygen evolution reaction (OER) catalysts usually suffer from harsh high‐potential conditions, either acidic or alkaline, leading to performance degradation and surface reconstruction. Importantly, reconstruction upon some may lead a misinterpretation of true active centers, thereby impeding rational design catalysts. Consequently, understanding dynamic catalyst during OER essential. This paper reviews recent research progress on both precious‐metal non‐precious‐metal across wide pH, i.e., under alkaline highlights differences between them. In addition, an analysis underlying causes impact factors that greatly influence these processes are presented. Finally, based discussions, perspectives proposed.

Language: Английский

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Defect Engineering in Semiconductor Photocatalysts: Enhancing Photocatalytic Activity for Green Energy Production

Advanced Energy and Sustainability Research, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

Defect engineering is an innovative approach that greatly enhances the performance of photocatalysts, especially in water‐splitting applications for sustainable green energy. This method involves introducing structural imperfections, such as lattice vacancies or foreign atom substitutions, to improve photocatalytic properties semiconductors. These defects can alter critical aspects reactions by adjusting band structure and increasing light absorption. For instance, anionic introduce mid‐gap states broaden absorption, while cationic lower bandgap without forming states. When both vacancy types are present simultaneously, they create a p–n homojunction, facilitating charge carrier separation through its distinct built‐in electric field. Defects typically categorized either surface bulk defects. Surface mobility, promote reactant adsorption, initiate reactions, frequently serve recombination centers. In addition, level these critical; keeping them at optimal balance significantly efficiency, but excessive may lead increased recombination, which reduces efficiency. Achieving right defect type, distribution, concentration key optimizing performance, underscoring essential role advancing energy solutions.

Language: Английский

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A self-powered photoelectrochemical aptasensor based on target response and Ag-CdIn2S4 photosensitive material for ultrasensitive detection of prostate-specific antigen

Microchemical Journal, Journal Year: 2024, Volume and Issue: 205, P. 111278 - 111278

Published: July 23, 2024

Language: Английский

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