ACS Applied Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 29, 2025
Язык: Английский
Chemical Society Reviews, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
This review provides a comprehensive insight into the electrodegradation processes of nitrogenous pollutants in sewage, highlighting reaction mechanisms, theoretical descriptors, catalyst design, and energy valorization strategies.
Язык: Английский
Процитировано
4
Advanced Science, Год журнала: 2024, Номер 12(2)
Опубликована: Ноя. 18, 2024
Abstract The direct electrochemical reduction of nitrate to ammonia is an efficient and environmentally friendly technology, however, developing electrocatalysts with high activity selectivity remains a great challenge. Single‐atom catalysts demonstrate unique properties exceptional performance across range catalytic reactions, especially those that encompass multi‐step processes. Herein, straightforward cost‐effective approach introduced for synthesizing single‐atom dispersed Rh on porous TiO 2 spheres (Rh 1 ‐TiO ), which functions as electrocatalyst the electroreduction NO 3 − NH . synthesized catalyst achieve maximum Faradaic efficiency (FE) 94.7% yield rate 29.98 mg h −1 cat at −0.5 V versus RHE in 0.1 M KOH+0.1 KNO electrolyte, significantly outperforming not only undoped but also Ru, Pd, Ir doped titania catalysts. Density functional theory calculations reveal incorporation single atom enhances charge transfer between adsorbed active site. atoms serve highly site reaction (NO RR), activates adjacent Ti sites through optimizating electronic structure, thereby reducing energy barrier rate‐limiting step. Consequently, this results substantial enhancement RR performance. Furthermore, synthetic method has potential be extended other scaled up commercial applications.
Язык: Английский
Процитировано
4
ACS Applied Nano Materials, Год журнала: 2025, Номер 8(2), С. 1091 - 1099
Опубликована: Янв. 2, 2025
The syntheses and catalytic application of two-dimensional (2D) metallic nanomaterials have attracted much attention due to their extraordinary physical, electronic, chemical, optical properties. Herein, well-defined large-size ultrathin Rh nanosheets with a thickness approximately 0.72 nm were successfully prepared by using one step solvothermal method at 180 °C for 4 h Rh(acac)3 as precursor, water solvent, EDTA·2Na stabilizer, HCHO both reducing agent shape-controlling agent. formation the was dependent upon well selective adsorption CO, which originated from decomposition during reaction process, on (111) facets nucleus. as-synthesized exhibited excellent activity high selectivity cyclohexanone in hydrogenation phenol. 100% conversion phenol 79.74% achieved over 0.5 MPa H2 pressure room temperature within 1.5 h. These results provide synthesis strategy precious metal applications.
Язык: Английский
Процитировано
0
Coordination Chemistry Reviews, Год журнала: 2025, Номер 528, С. 216418 - 216418
Опубликована: Янв. 4, 2025
Язык: Английский
Процитировано
0
Industrial & Engineering Chemistry Research, Год журнала: 2025, Номер unknown
Опубликована: Фев. 13, 2025
Язык: Английский
Процитировано
0
EnergyChem, Год журнала: 2025, Номер unknown, С. 100148 - 100148
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160985 - 160985
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
Chemical Physics Reviews, Год журнала: 2025, Номер 6(1)
Опубликована: Фев. 26, 2025
The electrocatalytic nitrate (NO3−) reduction reaction (NO3RR) is an attractive strategy for sustainable ammonia (NH3) synthesis, contributing to the artificial nitrogen cycle and renewable energy storage. However, selective conversion of NO3− NH3 remains challenging due complex multi-electron transfer processes, which result in numerous by-products, low yield rate, Faradaic efficiency. Additionally, electrochemical sensitivity catalyst structure complicates identifying active sites. Herein, we introduce mechanisms situ characterization technologies NO3RR production. Then, a summary theoretical research advances guide design catalyst, including density functional theory calculations, activity descriptors, machine learning. Furthermore, discuss strategies optimize performance NO3RR, focusing on nitrogenous-intermediate adsorption, proton tandem catalysis. Finally, challenges opportunities highly efficient are summarized.
Язык: Английский
Процитировано
0
Fuel, Год журнала: 2025, Номер 392, С. 134896 - 134896
Опубликована: Март 3, 2025
Язык: Английский
Процитировано
0
ACS Nano, Год журнала: 2025, Номер unknown
Опубликована: Март 9, 2025
The electrocatalytic nitrate reduction to hydroxylamine (NH2OH) is a challenging catalytic process that has gained significant attention. However, its performance hindered by the low selectivity of electrocatalysts. Here, intermetallic PtSn nanosheets with p–d orbital hybridization have been synthesized, which significantly enhances NH2OH. Faradaic efficiency NH2OH reaches maximum 82.83 ± 1.55% at −0.10 V versus reversible hydrogen electrode (vs RHE), and yield achieves 6.15 0.32 mmol h–1 mgcat–1 −0.25 vs RHE. Mechanistic studies reveal between p-block Sn d-block Pt effectively adsorption desorption boost electrochemical synthesis. Given their excellent in synthesis NH2OH, are utilized as cathode an alkaline-acid hybrid Zn–NO3– battery facilitate production achieving FE 80.42%.
Язык: Английский
Процитировано
0