Solar-to-hydrogen efficiency of more than 9% in photocatalytic water splitting

Nature, Journal Year: 2023, Volume and Issue: 613(7942), P. 66 - 70

Published: Jan. 4, 2023

Language: Английский

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A membrane-based seawater electrolyser for hydrogen generation

Nature, Journal Year: 2022, Volume and Issue: 612(7941), P. 673 - 678

Published: Nov. 30, 2022

Language: Английский

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Recent advances and perspectives for solar-driven water splitting using particulate photocatalysts

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(9), P. 3561 - 3608

Published: Jan. 1, 2022

Recent advances in particulate photocatalytic water splitting are reviewed and the pioneering works scalable H 2 evolution via OWS presented.

Language: Английский

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Solar-Driven Hydrogen Production: Recent Advances, Challenges, and Future Perspectives

ACS Energy Letters, Journal Year: 2022, Volume and Issue: 7(3), P. 1043 - 1065

Published: Feb. 26, 2022

Solar H2 production is considered as a potentially promising way to utilize solar energy and tackle climate change stemming from the combustion of fossil fuels. Photocatalytic, photoelectrochemical, photovoltaic–electrochemical, thermochemical, photothermal catalytic, photobiological technologies are most intensively studied routes for production. In this Focus Review, we provide comprehensive review these technologies. After brief introduction principles mechanisms technologies, recent achievements in summarized, with particular focus on high solar-to-H2 (STH) conversion efficiency achieved by each route. We then comparatively analyze evaluate based metrics STH efficiency, durability, economic viability, environmental sustainability, aiming assess commercial feasibility compared current industrial processes. Finally, challenges prospects future research presented.

Language: Английский

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Surface Modification of 2D Photocatalysts for Solar Energy Conversion

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(23)

Published: March 9, 2022

Abstract 2D materials show many particular properties, such as high surface‐to‐volume ratio, anisotropic degree, and adjustable chemical functionality. These unique properties in have sparked immense interest due to their applications photocatalytic systems, resulting significantly enhanced light capture, charge‐transfer kinetics, surface reaction. Herein, the research progress photocatalysts based on varied compositions functions, followed by specific modification strategies, is introduced. Fundamental principles focusing harvesting, charge separation, molecular adsorption/activation 2D‐material‐based system are systemically explored. The examples described here detail use of various energy‐conversion including water splitting, carbon dioxide reduction, nitrogen fixation, hydrogen peroxide production, organic synthesis. Finally, elaborating challenges possible solutions for developing these materials, review expected provide some inspiration future used efficient energy conversions.

Language: Английский

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Insight on Reaction Pathways of Photocatalytic CO₂ Conversion

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(12), P. 7300 - 7316

Published: June 3, 2022

Photocatalytic CO2 conversion to value-added chemicals is a promising solution mitigate the current energy and environmental issues but challenging process. The main obstacles include inertness of molecule, sluggish multi-electron process, unfavorable thermodynamics, selectivity control preferable products. Furthermore, lack fundamental understanding reaction pathways accounts for very moderate performance in field. Therefore, this Perspective, we attempt discuss possible mechanisms toward all C1 C2 products, taking into account experimental evidence theoretical calculation on surface adsorption, proton electron transfer, products desorption. Finally, remaining challenges field, including mechanistic understanding, reactor design, economic consideration, potential solutions, are critically discussed by us.

Language: Английский

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Photocatalytic water splitting

Nature Reviews Methods Primers, Journal Year: 2023, Volume and Issue: 3(1)

Published: June 1, 2023

Language: Английский

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A Twin S‐Scheme Artificial Photosynthetic System with Self‐Assembled Heterojunctions Yields Superior Photocatalytic Hydrogen Evolution Rate

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(6)

Published: Nov. 22, 2022

Designing heterojunction photocatalysts imitating natural photosynthetic systems has been a promising approach for photocatalytic hydrogen generation. However, in the traditional Z-Scheme artificial systems, poor charge separation, and rapid recombination of photogenerated carriers remain huge bottleneck. To rationally design S-Scheme (i.e., Step scheme) heterojunctions by avoiding futile transport routes is therefore seen as an attractive to achieving high evolution rates. Herein, twin S-scheme proposed involving graphitic C3 N4 nanosheets self-assembled with hydrogen-doped rutile TiO2 nanorods anatase nanoparticles. This catalyst shows excellent rate 62.37 mmol g-1 h-1 apparent quantum efficiency 45.9% at 365 nm. The significant enhancement performance attributed efficient separation transfer induced unique structure. route confirmed situ X-ray photoelectron spectroscopy (XPS) electron spin resonance (ESR) spin-trapping tests. Femtosecond transient absorption (fs-TA) spectroscopy, transient-state surface photovoltage (TPV), other ex characterizations further corroborate across interface. work offers new perspective on constructing enhance performance.

Language: Английский

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Semiconducting Polymers for Oxygen Evolution Reaction under Light Illumination

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(3), P. 4204 - 4256

Published: Jan. 13, 2022

Sunlight-driven water splitting to produce hydrogen fuel has stimulated intensive scientific interest, as this technology the potential revolutionize fossil fuel-based energy systems in modern society. The oxygen evolution reaction (OER) determines performance of overall owing its sluggish kinetics with multielectron transfer processing. Polymeric photocatalysts have recently been developed for OER, and substantial progress realized emerging research field. In Review, focus is on photocatalytic technologies materials polymeric OER. Two practical systems, namely, particle suspension film-based photoelectrochemical form two main sections. concept reviewed terms thermodynamics kinetics, are discussed based three key characteristics, light absorption, charge separation transfer, surface oxidation reactions. A satisfactory OER by will eventually offer a platform achieve other advanced applications cost-effective, sustainable, renewable manner using solar energy.

Language: Английский

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2D Transition Metal Dichalcogenides for Photocatalysis

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(13)

Published: Jan. 3, 2023

Abstract Two‐dimensional (2D) transition metal dichalcogenides (TMDs), a rising star in the post‐graphene era, are fundamentally and technologically intriguing for photocatalysis. Their extraordinary electronic, optical, chemical properties endow them as promising materials effectively harvesting light catalyzing redox reaction Here, we present tutorial‐style review of field 2D TMDs photocatalysis to educate researchers (especially new‐comers), which begins with brief introduction fundamentals along synthesis this type material, then look deeply into merits co‐catalysts active photocatalysts, followed by an overview challenges corresponding strategies photocatalysis, finally ahead topic.

Language: Английский

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