High entropy alloy nanoparticles as efficient catalysts for alkaline overall seawater splitting and Zn-air batteries

Journal of Colloid and Interface Science, Год журнала: 2023, Номер 646, С. 844 - 854

Опубликована: Май 17, 2023

Язык: Английский

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Understanding the bifunctional catalytic ability of electrocatalysts for oxygen evolution reaction and urea oxidation Reaction: Recent advances and perspectives

Chemical Engineering Journal, Год журнала: 2023, Номер 471, С. 144660 - 144660

Опубликована: Июль 11, 2023

Язык: Английский

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Coupling Co-Ni phosphides for energy-saving alkaline seawater splitting

Nano Research, Год журнала: 2024, Номер 17(6), С. 4797 - 4806

Опубликована: Фев. 7, 2024

Язык: Английский

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Electrocatalytic nitrate-to-ammonia conversion on CoO/CuO nanoarrays using Zn–nitrate batteries

Nanoscale, Год журнала: 2023, Номер 15(48), С. 19577 - 19585

Опубликована: Янв. 1, 2023

Zn-NO3- batteries can generate electricity while producing NH3 in an environmentally friendly manner, making them a very promising device. However, the conversion of NO3- to involves proton-assisted 8-electron (8e-) transfer process with high kinetic barrier, requiring high-performance catalysts realize potential applications this technology. Herein, we propose heterostructured CoO/CuO nanoarray electrocatalyst prepared on copper foam (CoO/CuO-NA/CF) that electrocatalytically and efficiently convert at low achieves maximum yield 296.9 μmol h-1 cm-2 Faraday efficiency (FE) 92.9% -0.2 V vs. reversible hydrogen electrode (RHE). Impressively, battery based monolithic CoO/CuO-NA/CF delivers 60.3 cm-2, FENH3 82.0%, power density 4.3 mW cm-2. This study provides paradigm for catalyst preparation energy-efficient production simultaneously generating electrical energy.

Язык: Английский

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Modulation Strategies for the Preparation of High‐Performance Catalysts for Urea Oxidation Reaction and Their Applications

Small, Год журнала: 2023, Номер 19(45)

Опубликована: Июль 11, 2023

Abstract Compared with the traditional electrolysis of water to produce hydrogen, urea‐assisted hydrogen has significant advantages and received extensive attention from researchers. Unfortunately, urea oxidation reaction (UOR) involves a complex six‐electron transfer process leading high overpotential, which forces researchers develop high‐performance UOR catalysts drive development splitting. Based on mechanism literature research, this review summarizes strategies for preparing highly efficient catalysts. First, is introduced characteristics excellent are pointed out. Aiming at this, following modulation proposed improve catalytic performance based summarizing various literature: 1) Accelerating active phase formation reduce initial potential; 2) Creating double sites trigger new mechanism; 3) adsorption promoting C─N bond cleavage ensure effective conduct UOR; 4) Promoting desorption CO 2 stability prevent catalyst poisoning; 5) electron overcome inherent slow dynamics 6) Increasing or surface area. Then, application in electrochemical devices summarized. Finally, current deficiencies future directions discussed.

Язык: Английский

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Au nanoclusters anchored on TiO2 nanosheets for high-efficiency electroreduction of nitrate to ammonia

Nano Research, Год журнала: 2023, Номер 17(3), С. 1209 - 1216

Опубликована: Авг. 14, 2023

Язык: Английский

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Amorphous Fe–Co oxide as an active and durable bifunctional catalyst for the urea-assisted H₂ evolution reaction in seawater

Chemical Communications, Год журнала: 2023, Номер 59(66), С. 9992 - 9995

Опубликована: Янв. 1, 2023

In this study, we prepared amorphous iron-cobalt oxide through the dealloying of trimetallic FeCoAl, showing excellent performance in both urea oxidation and hydrogen evolution reactions (UOR HER) alkaline seawater. The catalyst demonstrated stable UOR HER activity during long-term operations due to abundant active sites oxygen vacancies. required applied potentials 1.52 -0.185 V yield 100 mA cm-2 for HER, respectively. Moreover, when used as cathode anode, electrolyzer a working voltage 1.68 urea-assisted production.

Язык: Английский

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High-entropy alloys in water electrolysis: Recent advances, fundamentals, and challenges

Science China Materials, Год журнала: 2023, Номер 66(5), С. 1681 - 1701

Опубликована: Март 27, 2023

Язык: Английский

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NiCo alloy nanoparticles anchored on mesoporous Mo2N nanosheets as efficient catalysts for 5-hydroxymethylfurfural electrooxidation and hydrogen generation

Chinese Journal of Structural Chemistry, Год журнала: 2023, Номер 42(10), С. 100104 - 100104

Опубликована: Май 23, 2023

Язык: Английский

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Bifunctional bimetallic oxide nanowires for high-efficiency electrosynthesis of 2,5-furandicarboxylic acid and ammonia

Journal of Colloid and Interface Science, Год журнала: 2023, Номер 652, С. 155 - 163

Опубликована: Авг. 12, 2023

Язык: Английский

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