Chinese Chemical Letters, Год журнала: 2024, Номер 36(2), С. 109958 - 109958
Опубликована: Май 1, 2024
Язык: Английский
Advanced Functional Materials, Год журнала: 2024, Номер 34(21)
Опубликована: Янв. 31, 2024
Abstract Electrochemical conversion of nitrate offers an efficient solution to pollution and a sustainable strategy for ammonia generation. Cu Fe bimetallic electrocatalysts exhibit excellent electrochemical reduction (NO 3 RR) reactivity but the conventional preparation is complex time‐consuming this reaction still suffers from unsatisfied kinetic unidentified mechanisms. Herein, in situ electrodeposition employed induce modify active sites iron‐based N‐doping carbon nanofiber electrode (Fe/Fe C@NCNFs) during NO RR Cu‐contained solution. Benefiting synergistic effect between Cu─Fe/Fe C@NCNFs electrode, superior activity rate‐determining (*NO *NO 2 ) reduced energy barriers following deoxidation hydrogenation steps are achieved. Compared with Fe/Fe C@NCNFs‐500, pseudo‐first‐order (PFO) rate constant by demonstrates nearly two‐fold improvement high current efficiencies over wide pH voltage range. Furthermore, maximum ─N removal capacity N selectivity reach 15593.8 mg g −1 ca. 92% after twenty cycles. This work avenue highly design, paving more insights into interactions site construction performance.
Язык: Английский
Процитировано
31
Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 355, С. 124205 - 124205
Опубликована: Май 16, 2024
Язык: Английский
Процитировано
25
Environmental Science & Technology, Год журнала: 2024, Номер 58(29), С. 12823 - 12845
Опубликована: Июль 2, 2024
Nitrate, a prevalent water pollutant, poses substantial public health concerns and environmental risks. Electrochemical reduction of nitrate (eNO
Язык: Английский
Процитировано
19
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
Процитировано
6
Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125195 - 125195
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
2
Environmental Science and Ecotechnology, Год журнала: 2023, Номер 20, С. 100383 - 100383
Опубликована: Дек. 28, 2023
Global water bodies are increasingly imperiled by nitrate pollution, primarily originating from industrial waste, agricultural runoffs, and urban sewage. This escalating environmental crisis challenges traditional treatment paradigms necessitates innovative solutions. Electro-catalysis, especially utilizing copper-based catalysts, known for their efficiency, cost-effectiveness, eco-friendliness, offer a promising avenue the electro-catalytic reduction of to ammonia. In this review, we systematically consolidate current research on diverse including pure Cu, Cu alloys, oxides, single-atom entities, composites. Furthermore, assess catalytic performance, operational mechanisms, future directions find effective, long-term solutions purification ammonia synthesis. Electro-catalysis technology shows potential in mitigating pollution has strategic importance sustainable management. As application, regarding complexity real water, scale-up commerical efficient collection produced NH
Язык: Английский
Процитировано
37
ACS Materials Letters, Год журнала: 2024, Номер 6(7), С. 2591 - 2598
Опубликована: Май 28, 2024
Electrocatalytic reduction of nitrate (NO3–) in waste streams to valuable ammonia under ambient conditions is a green route for remediation. However, efficient catalysts are required this multistep proton coupled electron transfer reaction. This work presented tandem catalyst composed N-doped carbon layer coated Co3O4 with CuOx as highly and selective electrocatalyst NO3– NH3 at low onset potential. The catalysis → NO2– over the two synergistical sites situ generated metallic Cu was verified by experiments theoretical calculations. Benefiting from active sites, exhibited an yield rate 3.23 mg h–1 cm–2 Faradaic efficiency 93.77% ultralow potential −0.1 V versus RHE. opens new avenue design electrocatalytic reduction.
Язык: Английский
Процитировано
14
Chinese Chemical Letters, Год журнала: 2024, Номер 35(12), С. 109789 - 109789
Опубликована: Март 19, 2024
Язык: Английский
Процитировано
13
Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(2), С. 112348 - 112348
Опубликована: Фев. 27, 2024
Язык: Английский
Процитировано
9
Journal of Hazardous Materials, Год журнала: 2024, Номер 472, С. 134522 - 134522
Опубликована: Май 3, 2024
Язык: Английский
Процитировано
9