Biosensors and Bioelectronics, Год журнала: 2024, Номер 268, С. 116917 - 116917
Опубликована: Ноя. 6, 2024
Язык: Английский
npj Materials Sustainability, Год журнала: 2025, Номер 3(1)
Опубликована: Янв. 7, 2025
Abstract Advanced Oxidation Processes (AOPs) are promising for treating persistent pollutants, yet challenges arise due to the step-wise oxidants activation process, which traditional single-active-center catalysts struggle facilitate effectively. Recently, dual-active-center have emerged as a solution by enabling synergistic reactions. This review covers advances in these catalysts, their co-catalytic mechanisms, and applications electro-Fenton, photocatalytic, peroxymonosulfate-, pollutant-as-electron-donor based Fenton-like processes, along with active site design considerations future challenges.
Язык: Английский
Процитировано
4
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 10, 2025
Abstract Sulfur conversion reactions are the foundation of lithium–sulfur batteries but usually possess sluggish kinetics during practical battery operation. Herein, a high‐entropy single‐atom catalyst (HESAC) is synthesized for this process. In contrast to conventional dual‐atom catalysts that form metal–metal bonds, center metal atoms in HESAC not bonded exhibit long‐range interactions at sub‐nanometer distance (<9 Å). The synergistic effect between and entropy changes enables regulation d‐ π‐ electron states. This alteration electronic structure improves adsorption conductivity intermediate polysulfides, thereby accelerating their kinetics. Consequently, leads significant enhancement specific capacities by ≈40% high rates compared catalysts. resulting with demonstrates remarkable areal capacity 3.4 mAh cm −2 10 C. These findings provide valuable insights into design principle atom electrochemical reactions.
Язык: Английский
Процитировано
1
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 27, 2025
Abstract Durable problems caused by the attack from free radicals are considered as Achilles’ heel in practical applications for oxygen reduction reaction (ORR) acidic conditions. Herein, a ligand‐bridging strategy is proposed to design Cu─Fe dual‐atom catalyst (CuFeDAC‐NC) relieve undesirable degradation radicals. Comprehensive investigations and theoretical calculations verify that byproduct of hydrogen peroxide can be effectively eliminated at neighboring Cu sites through cascade catalytic process, formation oxidative suppressed, leading enhanced durability. Meanwhile, synergistic effect between site Fe results superior ORR performance. CuFeDAC‐NC delivers half‐wave potential ( E 1/2 ) 0.811 V 0.1 M HClO 4 electrolyte exhibits excellent durability with small loss 12 mV after 10 000 cycles Fe─NC (34 mV). This work not only provides new perspective get insight into mechanisms but also opens an avenue catalysts
Язык: Английский
Процитировано
0
Catalysts, Год журнала: 2025, Номер 15(4), С. 334 - 334
Опубликована: Март 31, 2025
Photo-reforming waste polyethylene terephthalate (PET) in alkaline aqueous solutions is a novel approach for green hydrogen production. This study focuses on improving the catalytic efficiency of Pt/TiO2 photo-reforming PET using an innovative dark deposition method to deposit Pt single atoms nano TiO2 (Pt/TiO2), thereby increasing while reducing cost catalyst. The precursor concentration was optimized control size and distribution clusters/atoms, support annealed at different temperatures modify properties Pt/TiO2. Nine catalysts were synthesized concentrations annealing temperatures. characterized measure their morphological, crystalline, electronic properties, as well yields via photo-reforming. conversion external quantum yield (EQY) calculated compared with those traditional direct-deposited catalysts. correlation between characteristics dark-deposited influence process statistically analyzed principal component analysis. Catalysts deposited under conditions exhibited 5-fold 7-fold enhancements EQY, respectively, conventional systems. These findings indicate that proposed system provides viable solution minimizing loading, catalyst, maintaining higher efficiency.
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 24, 2025
Abstract Ni single‐atoms (SAs) are active for electrocatalytic CO 2 reduction reaction (CO RR) to CO, but their performance still needs be further improved practical implementation. Herein, a strategy of “short‐ and long‐range modulation” is reported synergistically modulate the electronic structure SAs by constructing nanoparticles (NPs) integrated with N, P‐coordinated on N‐doped carbon supports (Ni‐P 1 N 3 /Ni NPs @NC). Experiments theoretical calculations reveal that both short‐range modulation involving Ni–P coordination collectively enhance electron localization around SAs, thus increasing binding strength key * COOH intermediate. This results in an RR lowering energy barrier. Ni‐P @NC exhibits Faradaic efficiency exceeding 99.0% across wide potential range from −0.5 −1.1 V versus reversible hydrogen electrode (vs RHE), highest partial current density −544 mA cm −2 at vs RHE.
Язык: Английский
Процитировано
0
Small, Год журнала: 2024, Номер unknown
Опубликована: Дек. 12, 2024
It is of great significance for the development hydrogen energy technology by exploring new-type and high-efficiency electrocatalysts (such as single atom catalysts (SACs)) water splitting. In this paper, combining interface engineering doping engineering, a unique iron (Fe)-doped carbon-coated nickel sulfide (Ni
Язык: Английский
Процитировано
2
Biosensors and Bioelectronics, Год журнала: 2024, Номер 268, С. 116917 - 116917
Опубликована: Ноя. 6, 2024
Язык: Английский
Процитировано
1