Hollow Square Ni-Doped Copper Oxide Catalyst Boosting Electrocatalytic Nitrate Reduction

ACS Catalysis, Год журнала: 2025, Номер 15(3), С. 1672 - 1683

Опубликована: Янв. 16, 2025

The electrochemical nitrate reduction reaction to ammonia (NRA) is gaining increasing attention as an eco-friendly approach convert harmful pollutants into high-value product ammonia. NRA involves two critical rate-determining steps: hydrogenation of the *NO and *NOH intermediates. composite Ni Cu has been demonstrated exhibit synergistic catalytic effects; however, research on combination CuO remains limited. Herein, advanced Ni-doped copper oxide catalyst with a hollow square morphology (Ni–CuO) reported Faradaic efficiency 95.26% at −0.8 V vs RHE high yield rate 0.94 mmol h–1 cm–2, demonstrating selectivity stability. Complementary analyses that active hydrogen generated sites facilitates *NOx adsorbed sites. Theoretical computations further confirm thermodynamic viability this bimetallic mechanism. Furthermore, Al–NO3– battery open-circuit voltage was constructed by using Ni–CuO cathode. This work presents synergistically modulated for complex processes introduces highly efficient capable simultaneous NH3 synthesis electrical energy conversion, underscoring its potential in catalysis development chemical industries.

Язык: Английский

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Metal/covalent-organic framework-based electrocatalysts for electrochemical reduction of nitrate to ammonia

Coordination Chemistry Reviews, Год журнала: 2024, Номер 518, С. 216061 - 216061

Опубликована: Июль 8, 2024

The pervasive contamination of industrial, domestic, and agricultural wastewater with nitrate poses profound ecological public health risks. Traditional methods for remediating nitrate-laden water face formidable challenges due to its high solubility stability. However, a promising solution emerges in the form electrochemical reduction (eNO3RR), offering both efficient removal valuable ammonia generation sustainable manner. This review explores burgeoning field eNO3RR, focusing on recent advancements utilizing porous crystalline framework materials − metal–organic frameworks (MOFs) covalent-organic (COFs) as novel class electrocatalysts. These innovative exhibit unique properties such adjustable porosity, diverse structures, tunable pore sizes, well-defined active sites, making them ideal candidates enhancing efficiency selectivity under ambient conditions. By dissecting structure–activity relationship inherent MOF/COF-based electrocatalysts, this aims provide comprehensive understanding their role driving conversion NO3− NH3. Moreover, it identifies current proposes future prospects leveraging these advanced pollutants, glimpse into greener more effective approach remediation resource recovery.

Язык: Английский

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Single-Atom Catalysts Toward Electrochemical Water Treatment

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 363, С. 124783 - 124783

Опубликована: Ноя. 5, 2024

Язык: Английский

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Advances in electrocatalytic nitrate reduction to ammonia over Cu-based catalysts

Environmental Research, Год журнала: 2025, Номер unknown, С. 121123 - 121123

Опубликована: Фев. 1, 2025

Язык: Английский

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In-situ characterization technologies and theoretical calculations in carbon dioxide reduction: In-depth understanding of reaction mechanisms and rational design of electrocatalysts

Coordination Chemistry Reviews, Год журнала: 2025, Номер 533, С. 216541 - 216541

Опубликована: Фев. 28, 2025

Язык: Английский

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Advances of copper-based metal-organic frameworks and their derivatives in nitrate reduction to ammonia

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116076 - 116076

Опубликована: Март 1, 2025

Язык: Английский

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