Development of ABO₄‐type photoanodes for photoelectrochemical water splitting

EcoEnergy, Год журнала: 2023, Номер 1(1), С. 108 - 153

Опубликована: Сен. 1, 2023

Abstract Photoelectrochemical (PEC) water splitting with zero carbon emissions is a promising technology to solve the global issues of energy shortage and environmental pollution. However, current development PEC systems facing bottleneck low solar‐to‐hydrogen (STH) efficiency (<10%), which cannot meet demand large‐scale H 2 production. The low‐cost, highly active, stable photoanode materials crucial for high STH splitting. recent BiVO 4 as has been great success, ABO ‐type ternary metal oxides similar structure have potential efficient photoanodes high‐performance design are critically reviewed special emphasis on modification strategies performance improvement mechanisms each semiconductor. comprehensive analysis in this review provides guidelines insights exploration new high‐efficiency solar fuel

Язык: Английский

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Modulating built-in electric field via Bi-VO4-Fe interfacial bridges to enhance charge separation for efficient photoelectrochemical water splitting

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 672, С. 12 - 20

Опубликована: Май 31, 2024

Язык: Английский

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Systematic Constructing FeOCl/BiVO₄ Hetero‐Interfacial Hybrid Photoanodes for Efficient Photoelectrochemical Water Splitting

Small, Год журнала: 2024, Номер unknown

Опубликована: Май 8, 2024

Abstract Bismuth vanadate (BiVO 4 ), as a promising photoanode for photoelectrochemical (PEC) water splitting, suffers from poor charge separation efficiency and light absorption efficiency. Herein, iron oxychloride (FeOCl) is introduced novel cocatalyst simply grafted on BiVO to construct an integrated photoanode, enhancing PEC performance. The optimized FeOCl/BiVO exhibits superior photocurrent density value of 5.23 mA cm −2 at 1.23 V versus reversible hydrogen electrode (RHE) under AM 1.5G illuminations. From experimental analysis, such high performance ascribed the unique properties FeOCl, facilitating transport, increasing efficiency, promoting oxidation kinetics. Density functional theory calculations further confirm that FeOCl optimizes Gibbs free energy H O‐containing intermediates (OOH * ) during processes, boosting catalytic kinetics splitting. This work presents catalyst constructing efficient water‐splitting photoanodes.

Язык: Английский

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BiVO4 photoanodes with enhanced photoelectrochemical performance: Preparation, modification and emerging applications

Journal of Material Science and Technology, Год журнала: 2024, Номер 217, С. 182 - 220

Опубликована: Сен. 3, 2024

Язык: Английский

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Imperfect makes perfect: defect engineering of photoelectrodes towards efficient photoelectrochemical water splitting

Chemical Communications, Год журнала: 2023, Номер 59(67), С. 10044 - 10066

Опубликована: Янв. 1, 2023

Photoelectrochemical (PEC) water splitting for hydrogen evolution has been considered as a promising technology to solve the energy and environmental issues. However, solar-to-hydrogen (STH) conversion efficiencies of current PEC systems are far from meeting commercial demand (10%) due lack efficient photoelectrode materials. The recent rapid development defect engineering photoelectrodes significantly improved performance, which is expected break through bottleneck low STH efficiency. In this review, category construction methods different defects in materials summarized. Based on in-depth summary analysis existing reports, performance enhancement mechanism critically discussed terms light absorption, carrier separation transport, surface redox reactions. Finally, application prospects challenges presented, future research directions field also proposed.

Язык: Английский

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Failure mechanism analysis and emerging strategies for enhancing the photoelectrochemical stability of photoanodes

ChemSusChem, Год журнала: 2024, Номер unknown

Опубликована: Авг. 22, 2024

The development of efficient and stable photoanode materials is essential for driving the possible practical application photoelectrochemical water splitting. This article begins with a basic understanding fundamentals devices photoanodes. State-of-the-art strategies designing photoanodes long-term stability are highlighted, including insertion hole transport layers, construction protective/passivation loading co-catalysts, heterojunctions, modification electrolyte. Based on insights gained from these effective strategies, we present an outlook addressing key aspects challenges stabilizing in future work. Widespread adoption assessment criteria will facilitate reliable comparisons results different laboratories. In addition, deactivation defined as 50 % reduction productivity. An in-depth mechanism design work provide into production solar fuels.

Язык: Английский

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Tailoring Carrier Dynamics of BiVO₄ Photoanode via Dual Incorporation of Au and Co(OH)_x Cooperative Modification for Photoelectrochemical Water Splitting

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 30, 2024

Abstract Photoelectrochemical solar to hydrogen production is a promising way achieve carbon neutrality, but severe charge recombination in photoanodes limits the conversion efficiency. Herein, Au nanoparticles and Co(OH) x co‐sensitized bismuth vanadate (BiVO 4 ) construct AuCo(OH) /BiVO photoanode for significantly enhancing performance of photoelectrochemical water splitting. This process improves bulk carrier separation efficiency, surface kinetics oxidation, electron density BiVO through plasmon resonance (SPR) oxygen evolution catalysts effect. Additionally, enhancement *O *OOH generation accelerate reaction kinetics. Consequently, constructed demonstrates an excellent photocurrent 6.2 mA cm −2 at 1.23 V versus reversible electrode stable continuous output within 42 h. work contributes developing high‐efficiency high‐stability H 2 SPR effect catalysts.

Язык: Английский

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Size Effects on Bubble Dynamics during Photoelectrochemical Water Splitting

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Фев. 20, 2025

The rapid bubble removal from electrodes diminishes the reaction resistance within photoelectrochemical water splitting, and coalescence between bubbles accelerates their detachment. To delve into size effects on dynamics, Marangoni effect is utilized as a noninvasively controlling means of sliding coalescence. study reveals that encounter capillary waves induces A quantitative correlation has been established to elucidate relationship oscillation time wave propagation. Then, undergo damping oscillations due fluid after detaching, characterized by same dimensionless periods. Additionally, detachment velocity follows power law 1/2 with ratio surface energy equivalent radius. Considering viscous dissipation adhesive electrode bubbles, critical radius large enabling jumping deduced perspective conservation. Our research provides strategy for management dynamic behavior practical application electrolysis technology.

Язык: Английский

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Photoelectrochemical Metal Ions Recovery for Resource Recycling

Materials Today Communications, Год журнала: 2025, Номер unknown, С. 112497 - 112497

Опубликована: Апрель 1, 2025

Язык: Английский

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Functional coupling hole transport and extraction units over BiVO4 for efficient solar-to-hydrogen conversion

Energy Conversion and Management, Год журнала: 2024, Номер 322, С. 119153 - 119153

Опубликована: Окт. 19, 2024

Язык: Английский

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