Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179863 - 179863
Опубликована: Март 1, 2025
Язык: Английский
Advanced Science, Год журнала: 2025, Номер unknown
Опубликована: Янв. 7, 2025
Abstract Overall water splitting (OWS) to produce hydrogen has attracted large attention in recent years due its ecological‐friendliness and sustainability. However, the efficiency of OWS been forced by sluggish kinetics four‐electron oxygen evolution reaction (OER). The replacement OER alternative electrooxidation small molecules with more thermodynamically favorable potentials may fundamentally break limitation achieve production low energy consumption, which also be accompanied value‐added chemicals than or electrochemical degradation pollutants. This review critically assesses latest discoveries coupled various OWS, including alcohols, aldehydes, amides, urea, hydrazine, etc. Emphasis is placed on corresponding electrocatalyst design related mechanisms (e.g., dual hydrogenation N–N bond breaking hydrazine C═N regulation urea inhibit hazardous NCO − NO productions, etc.), along emerging reactions (electrooxidation tetrazoles, furazans, iodide, quinolines, ascorbic acid, sterol, trimethylamine, etc.). Some new decoupled electrolysis self‐powered systems are discussed detail. Finally, potential challenges prospects highlighted aid future research directions.
Язык: Английский
Процитировано
6
Advanced Sustainable Systems, Год журнала: 2025, Номер unknown
Опубликована: Фев. 5, 2025
Abstract As a pivotal bio‐based building block, 2,5‐furandicarboxylic acid (FDCA) holds immense and broad application potential in the chemistry industry. Its polymeric derivative, polyethylene furandicarboxylate (PEF), emerges as an appealing alternative to conventional petroleum‐based terephthalate (PET). The electrochemical route for oxidizing 5‐hydroxymethylfurfural (HMF) into FDCA presents significant advantages over thermochemical processes, without requirements of high temperature, pressure, chemical oxidants, precious metal catalysts, featuring higher energy efficiency. Furthermore, electrosynthesis at anode can be synergistically integrated with selective reduction reactions cathode, enabling simultaneous production two desirable value‐added products further enhancing overall utilization This work reviews advancements electrocatalytic HMF (EHTF), encompassing catalyst design, reaction mechanisms, coupling strategies, reactor configurations. It also indicates challenges opportunities EHTF provides insights future development directions.
Язык: Английский
Процитировано
3
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160565 - 160565
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
3
Advanced Energy Materials, Год журнала: 2024, Номер 14(41)
Опубликована: Авг. 17, 2024
Abstract Ni‐based electrocatalysts are considered to be significantly promising candidates for electrocatalytic urea oxidation reaction (UOR). However, their UOR activity and stability severely enslaved by the inevitable Ni group self‐oxidation phenomenon. In this study, glassy state NiFe LDH with uniform Cu dopant (Cu‐NiFe LDH) a simple sol–gel strategy is successfully synthesized. When served as catalyst, Cu‐NiFe required 123 mV lower potential at both 10 100 mA cm −2 in comparison conventional anodic OER. It can also operate steadily more than 300 h . The in‐depth investigation reveals that incorporation optimize local electronic structure of species induce high‐valent sites. sites would act active center during proposed energetically favorable route, which directly reacts on without inducing formation NiOOH species, resulting boosted stability.
Язык: Английский
Процитировано
13
ACS Catalysis, Год журнала: 2024, Номер 14(21), С. 16234 - 16244
Опубликована: Окт. 18, 2024
Язык: Английский
Процитировано
12
Nano Energy, Год журнала: 2025, Номер unknown, С. 110714 - 110714
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
2
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 25, 2025
Abstract To overcome the challenges of low catalytic activity and instability, a molecular weight engineering strategy coupled with oxidative ammonolysis is developed to synthesize CoRu‐based alloy catalysts distinct morphologies properties from biorefinery lignin. This approach effectively modulates intrinsic active sites exposes unsaturated nitrogen‐oxygen structures, thereby tailoring morphology defect structure carbon layers in catalysts. The as‐synthesized CoRu lignin precursors varying weights are designated as CoRu@OALC‐EtOAC, CoRu@OALC‐EtOH, CoRu@OALC‐Residual. featuring defect‐rich graphitic carbon‐coated structure, exhibited exceptional overall water‐splitting performance (1.48 V at 10 mA cm −2 ), significantly surpassing Pt/C || Ru/C (1.58 ). In contrast, CoRu@OALC‐Residual, its amorphous demonstrated remarkable stability (350 h 100 vastly outperforming (6 In‐situ Raman spectroscopy DFT calculations revealed that adsorb * H intermediates, accelerating process. strong adsorption also induces layer rearrangement, leading dissolution oxidation metal particles. provides universal method for biomass‐derived catalysts, establishing direct relationship between weight, catalyst morphology, electrocatalytic performance.
Язык: Английский
Процитировано
2
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 4, 2025
Abstract Proton exchange membrane water electrolysis (PEMWE) represents a promising technology for renewable hydrogen production. However, the large‐scale commercialization of PEMWE faces challenges due to need acid oxygen evolution reaction (OER) catalysts with long‐term stability and corrosion‐resistant electrode assemblies (MEA). This review thoroughly examines deactivation mechanisms acidic OER crucial factors affecting assembly instability in complex environments, including catalyst degradation, dynamic behavior at MEA triple‐phase boundary, equipment failures. Targeted solutions are proposed, improvements, optimized designs, operational strategies. Finally, highlights perspectives on strict activity/stability evaluation standards, situ/operando characteristics, practical electrolyzer optimization. These insights emphasize interrelationship between catalysts, MEAs, activity, stability, offering new guidance accelerating systems.
Язык: Английский
Процитировано
2
Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Март 8, 2025
Electrochemical H2 production from water favors low-voltage molecular oxidation to replace the oxygen evolution reaction as an energy-saving and value-added approach. However, there exists a mismatch between high demand for slow anodic reactions, restricting practical applications of such hybrid systems. Here, we propose bipolar approach, with generation N–N oxidatively coupled dehydrogenation (OCD) 3,5-diamino-1H-1,2,4-triazole (DAT), in addition cathodic generation. The system requires relatively low potentials 0.872 1.108 V vs RHE reach 10 500 mA cm–2, respectively. H-type electrolyzer only 0.946 1.129 deliver 100 respectively, electricity consumption (1.3 kWh per m3 H2) reduced by 68%, compared conventional splitting. Moreover, process is highly appealing due absence traditional hazardous synthetic conditions azo compounds at anode crossover/mixing H2/O2 electrolyzer. A flow-type operates stably cm–2 300 h. Mechanistic studies reveal that Pt single atom nanoparticle (Pt1,n) optimize adsorption S active sites over Pt1,n@VS2 catalysts. At anode, stepwise −NH2 DAT then oxidative coupling −N–N– predominantly form while generating H2. present report paves new way atom-economical aminotriazole green electrosynthesis chemicals.
Язык: Английский
Процитировано
2
Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125219 - 125219
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
2