Sustainable materials and technologies, Год журнала: 2024, Номер 40, С. e00917 - e00917
Опубликована: Апрель 2, 2024
Язык: Английский
Interdisciplinary materials, Год журнала: 2024, Номер 3(2), С. 245 - 269
Опубликована: Фев. 28, 2024
Abstract The electrochemical nitrate reduction reaction (NO 3 RR) holds promise for ecofriendly removal. However, the challenge of achieving high selectivity and efficiency in electrocatalyst systems still significantly hampers mechanism understanding large‐scale application. Tandem catalysts, comprising multiple catalytic components working synergistically, offer promising potential improving NO RR. This review highlights recent progress designing tandem catalysts RR, including noble metal‐related system, transition metal electrocatalysts, pulsed electrocatalysis strategies. Specifically, optimization active sites, interface engineering, synergistic effects between catalyst components, various situ technologies, theory simulations are discussed detail. Challenges opportunities development scaling up RR further discussed, such as stability, durability, mechanisms. By outlining possible solutions future design, this aims to open avenues efficient comprehensive insights into mechanisms energy sustainability environmental safety.
Язык: Английский
Процитировано
30
Energy & Environmental Science, Год журнала: 2024, Номер 17(8), С. 2682 - 2685
Опубликована: Янв. 1, 2024
Electrochemical NO 3 − reduction to NH is insignificant for practical applications. Instead, contaminants should be converted into N 2 , recycled chemicals, or coupled with CO produce value-added fertilizers if applicable.
Язык: Английский
Процитировано
30
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Сен. 11, 2024
Abstract Electrochemical nitrate reduction reaction (NO 3 RR) is a promising approach to realize ammonia generation and wastewater treatment. However, the transformation from NO − NH involves multiple proton‐coupled electron transfer processes by‐products 2 , H etc.), making high selectivity challenge. Herein, two‐phase nanoflower P‐Cu/Co(OH) electrocatalyst consisting of P‐Cu clusters P‐Co(OH) nanosheets designed match two‐step tandem process ) more compatible, avoiding excessive accumulation optimizing whole reaction. Focusing on initial 2e process, inhibited * desorption Cu sites in gives rise appropriate released electrolyte. Subsequently, exhibits superior capacity for trapping transforming desorbed during latter 6e due thermodynamic advantage contributions active hydrogen. In 1 m KOH + 0.1 leads yield rate 42.63 mg h cm Faradaic efficiency 97.04% at −0.4 V versus reversible hydrogen electrode. Such well‐matched achieves remarkable synthesis performance perspective catalytic reaction, offering novel guideline design RR electrocatalysts.
Язык: Английский
Процитировано
28
Environmental Science & Technology, Год журнала: 2024, Номер 58(4), С. 2144 - 2152
Опубликована: Янв. 18, 2024
The electrocatalytic nitrate reduction reaction (NO3RR) has recently emerged as a promising technique for readily converting aqueous (NO3–) pollutants into valuable ammonia (NH3). It is vital to thoroughly understand the mechanism of rationally design and construct advanced systems that can effectively selectively drive NO3RR. There are several natural enzymes incorporate molybdenum (Mo) activate NO3–. Based on this, cadmium (Cd) single-atom anchored Mo2TiC2Tx electrocatalyst (referred CdSA-Mo2TiC2Tx) through NO3RR generate NH3 was designed demonstrated. In an H-type electrolysis cell at current density 42.5 mA cm–2, had Faradaic efficiency >95% impressive yield rate 48.5 mg h–1 cm–2. Moreover, conversion NO3– CdSA-Mo2TiC2Tx surface further revealed by operando attenuated total reflection Fourier-transform infrared spectroscopy electrochemical differential mass spectrometer. significantly outperformed well reported state-of-the-art catalysts. Density functional theory calculations decreased ability d-p orbital hybridize with NH3* intermediates, thereby decreasing activation energy potential-determining step. This work not only highlights application prospects heavy metal catalysts in but also provides examples bio-inspired electrocatalysts synthesis NH3.
Язык: Английский
Процитировано
22
Advanced Functional Materials, Год журнала: 2024, Номер 34(45)
Опубликована: Май 28, 2024
Abstract The past decades have seen considerable imbalances in the nitrogen cycle due to excessive use of nitrate agriculture and industry. Electrocatalytic reduction (NO 3 RR) (N 2 ) holds significant potential for addressing pollution wastewater but suffers from nitrite formation sluggish hydrogeneration process. Here a single atom alloy (SAA) catalyst featuring atomically dispersed Ru on 2D Ni metal (Ru 1 Ni), proving remarkable performance − –N conversion (≈93%) N selectivity (≈99%)) through co‐catalytic metal‐support interactions (CMSI) effect is reported. Significantly, SAA achieves NO RR removal capacity as high 11.1 mg L −1 h cm −2 with 20 cycles stability (9 per cycle), surpassing most previously reported works. core boosting lies synergistically promoted activation accelerated hydrogenation oxide intermediates site substrate, respectively, revealed by various situ experiments theoretical simulations. DFT calculations indicate electron transfer substrate more robust interaction between Ru–Ni comparison that Ni–Ni. This work offers resilient methodology rational design highly efficient electrocatalysts CMSI modulation RR, illuminating arena treatment cycle.
Язык: Английский
Процитировано
20
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(36)
Опубликована: Июнь 20, 2024
Electrochemical nitrate reduction reaction (NitRR) uses from wastewater, offering a hopeful solution for environmental issues and ammonia production. Yet, varying levels in real wastewater greatly affect NitRR, slowing down its multi-step process. Herein, multi-strategy approach was explored through the design of ordered mesoporous intermetallic AuCu
Язык: Английский
Процитировано
14
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
Процитировано
12
Chem Catalysis, Год журнала: 2024, Номер 4(9), С. 101060 - 101060
Опубликована: Июль 23, 2024
Язык: Английский
Процитировано
11
Advanced Energy and Sustainability Research, Год журнала: 2024, Номер 5(5)
Опубликована: Фев. 16, 2024
Ammonia (NH 3 ) is a vital chemical for modern human society. It conventionally produced by the energy‐ and emission‐intensive Haber–Bosch process. Alternatively, sustainable NH production from renewable electricity‐driven electrolyzers has emerged as promising route. Particularly, synthesis nitrate (NO − ), common pollutant in water soil, reduction reaction RR) drawn wide attention. Among various catalysts demonstrated recently, copper (Cu)‐based have been recognized attractive candidates due to their availability, good activity, high selectivity, facile kinetics. In this review, recent progress of Cu‐based NO RR mechanistic fundamentals catalyst design strategies, aiming at providing an on‐time summary, summarized, perspectives that can guide rational on‐demand Cu‐ other earth‐abundant metal‐based selective toward are elucidated.
Язык: Английский
Процитировано
8
Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112700 - 112700
Опубликована: Апрель 4, 2024
Язык: Английский
Процитировано
6