Regulating surface oxygen species on copper (I) oxides via plasma treatment for effective reduction of nitrate to ammonia

Applied Catalysis B Environment and Energy, Год журнала: 2021, Номер 305, С. 121021 - 121021

Опубликована: Дек. 18, 2021

Язык: Английский

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Emerging p-Block-Element-Based Electrocatalysts for Sustainable Nitrogen Conversion

ACS Nano, Год журнала: 2022, Номер 16(10), С. 15512 - 15527

Опубликована: Окт. 14, 2022

Artificial nitrogen conversion reactions, such as the production of ammonia via dinitrogen or nitrate reduction and synthesis organonitrogen compounds C–N coupling, play a pivotal role in modern life. As alternatives to traditional industrial processes that are energy- carbon-emission-intensive, electrocatalytic reactions under mild conditions have attracted significant research interests. However, electrosynthesis process still suffers from low product yield Faradaic efficiency, which highlight importance developing efficient catalysts. In contrast transition-metal-based catalysts been widely studied, p-block-element-based recently shown promising performance because their intriguing physiochemical properties intrinsically poor hydrogen adsorption ability. this Perspective, we summarize latest breakthroughs development electrocatalysts toward applications, including N2 urea using nitrogen-containing feedstocks carbon dioxide. The catalyst design strategies underlying reaction mechanisms discussed. Finally, major challenges opportunities future directions also proposed.

Язык: Английский

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Recent Progress in Interface Engineering of Nanostructures for Photoelectrochemical Energy Harvesting Applications

Small, Год журнала: 2023, Номер 19(19)

Опубликована: Фев. 12, 2023

Abstract With rapid and continuous consumption of nonrenewable energy, solar energy can be utilized to meet the requirement mitigate environmental issues in future. To attain a sustainable society with an mix predominately dependent on photoelectrochemical (PEC) device, which semiconductor nanostructure‐based photocatalysts play important roles, is considered one most promising candidates realize sufficient utilization low‐cost, green, environmentally friendly manner. Interface engineering nanostructures has been qualified efficient improvement PEC performances including three basic steps, i.e., light absorption, charge transfer/separation, surface catalytic reaction. In this review, recently developed interface for direct high‐efficiency conversion sunlight into available forms (e.g., chemical fuels electric power) are summarized terms their atomic constitution morphology, electronic structure potential applications. Extensive efforts toward development high‐performance applications water splitting, photodetection, catalysis, degradation biosensors) also presented appraised. Last but not least, brief summary personal insights challenges future directions community next‐generation devices provided.

Язык: Английский

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Intermediates Regulation via Electron‐Deficient Cu Sites for Selective Nitrate‐to‐Ammonia Electroreduction

Advanced Materials, Год журнала: 2023, Номер 35(48)

Опубликована: Сен. 21, 2023

Ammonia (NH3 ), known as one of the fundamental raw materials for manufacturing commodities such chemical fertilizers, dyes, ammunitions, pharmaceuticals, and textiles, exhibits a high hydrogen storage capacity ≈17.75%. Electrochemical nitrate reduction (NO3 RR) to valuable ammonia at ambient conditions is promising strategy facilitate artificial nitrogen cycle. Herein, copper-doped cobalt selenide nanosheets with selenium vacancies are reported robust highly efficient electrocatalyst ammonia, exhibiting maximum Faradaic efficiency ≈93.5% an yield rate 2360 µg h-1 cm-2 -0.60 V versus reversible electrode. The in situ spectroscopical theoretical study demonstrates that incorporation Cu dopants Se into efficiently enhances electron transfer from Co atoms via bridging atoms, forming electron-deficient structure sites accelerate NO3- dissociation stabilize *NO2 intermediates, eventually achieving selective catalysis entire NO3 RR process produce efficiently.

Язык: Английский

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Frustrated Lewis pairs boosting photoelectrochemical nitrate reduction over ZnIn2S4/BiVO4 heterostructure

Chemical Engineering Journal, Год журнала: 2022, Номер 450, С. 138260 - 138260

Опубликована: Июль 23, 2022

Язык: Английский

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Using a CeO2 quantum dot hole extraction-layer for enhanced solar water splitting activity of BiVO4 photoanodes

Chemical Engineering Journal, Год журнала: 2022, Номер 450, С. 137917 - 137917

Опубликована: Июль 5, 2022

Язык: Английский

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Carbon nitride coupled with Ti3C2-Mxene derived amorphous Ti-peroxo heterojunction for photocatalytic degradation of rhodamine B and tetracycline

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2022, Номер 640, С. 128448 - 128448

Опубликована: Янв. 31, 2022

Язык: Английский

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A critical review of the state-of-the-art green ammonia production technologies- mechanism, advancement, challenges, and future potential

Fuel, Год журнала: 2023, Номер 358, С. 130307 - 130307

Опубликована: Ноя. 11, 2023

Язык: Английский

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Recent progress in ammonia synthesis based on photoelectrocatalysis

Inorganic Chemistry Frontiers, Год журнала: 2023, Номер 10(16), С. 4650 - 4667

Опубликована: Янв. 1, 2023

Photoelectrocatalytic NH 3 synthesis from N 2 and H O is a promising approach for N-neutralization goal based on catalytic strategies, such as vacancy engineering, ion doping, frustrated Lewis pair design, heterojunction construction, etc .

Язык: Английский

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Construction of Frustrated Lewis Pair Sites in CeO₂–C/BiVO₄ for Photoelectrochemical Nitrate Reduction

Inorganic Chemistry, Год журнала: 2023, Номер 62(5), С. 2394 - 2403

Опубликована: Янв. 23, 2023

Photoelectrochemical nitrate reduction reaction (PEC NIRR) could convert the harmful pollutant (NO3-) to high-value-added ammonia (NH3) under mild conditions. However, catalysts are currently hindered by low catalytic activity and slow kinetics. Here, we reported a heterostructure composed of CeO2 BiVO4, "frustrated Lewis pairs (FLPs)" concept was introduced for understanding role acids bases on PEC NIRR. The electron density difference maps indicated that FLPs were significantly active adsorption activation NO3-. Furthermore, carbon (C) improved carrier transport ability kinetics, contributing NH3 yield 21.81 μg h-1 cm-2. conversion process NO3- tracked 15NO3- 14NO3- isotopic labeling. Therefore, this study demonstrated potential CeO2-C/BiVO4 efficient NIRR provided unique mechanism over FLPs.

Язык: Английский

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