Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 355, С. 124191 - 124191
Опубликована: Май 11, 2024
Язык: Английский
Small, Год журнала: 2025, Номер unknown
Опубликована: Янв. 23, 2025
Abstract A polyacrylamide gel method has been used to synthesize a variety of polyvalent‐transition‐metal‐doped Ni position high entropy spinel oxides (Ni 0.2 Zn Mg Cu Co )Al 2 O 4 ‐800 °C (A ) on the basis NiAl , and catalytic activity is studied under synergistic action peroxymonosulfate (PMS) activation simulated sunlight. The containing polyvalent transition metals 2+ can effectively activate PMS efficiently degrade levofloxacin (LEV) tetracycline hydrochloride (TCH) sunlight irradiation. After 90 min light exposure, degradation percentages LEV (50 mg L −1 TCH (100 by /PMS/vis system reach 87.0% 90.2%, respectively. superoxide radicals, photoinduced holes, singlet dominate process, while hydroxyl radicals sulfate play only small role. adsorption energy charge density difference between different systems are calculated functional theory, efficiency combining with change length O─O bond after adsorption. mechanism proposed, which provides new idea for study in field catalysis.
Язык: Английский
Процитировано
2
Journal of the European Ceramic Society, Год журнала: 2023, Номер 44(2), С. 585 - 594
Опубликована: Сен. 22, 2023
After the discovery of prototypical high-entropy oxide with formula Cu0.2Zn0.2Mg0.2Co0.2Ni0.2O, research on these materials has shown a dramatic boost. While many studies were devoted to exploring their possible applications, only few addressed effective reasons behind stability. The possibility achieve single-phase structure is usually hastily attributed configurational entropy. This resulted in an extensive misuse terms "entropy-stabilized oxides" and "high-entropy oxides", often employed as synonyms. However, role entropy stabilization should be demonstrated for each system, even Cu0.2Zn0.2Mg0.2Co0.2Ni0.2O it still under debate. Moreover, effects concur stabilization, i.e. relative concentration, valence state ionic radii cations involved. We will here discuss phase stability, considering main classes crystal structures providing guide critically discern between non-entropy stabilized oxides.
Язык: Английский
Процитировано
38
Nano Letters, Год журнала: 2023, Номер 23(24), С. 11907 - 11915
Опубликована: Дек. 14, 2023
Solar-driven interface evaporation has been identified as a sustainable seawater desalination and water purification technology. Nonetheless, the performance is still restricted by salt deposition heat loss owing to weak solar spectrum absorption, tortuous channels, limited plane area of conventional photothermal material. Herein, semiconductor nanofibrous aerogels with narrow bandgap, vertically aligned conical architecture are constructed multiscale synergetic engineering strategy, encompassing bandgap at atomic scale structure nano–micro scale. As proof-of-concept demonstration, Co-doped MoS2 aerogel synthesized, which exhibits entire superhydrophilic, excellent thermal insulation, achieving net rate 1.62 kg m–2 h–1 under 1 sun irradiation, well synergistically efficient dye ion adsorption function. This work opens up new possibilities for development evaporators practical applications in clean production.
Язык: Английский
Процитировано
32
Chemical Engineering Journal, Год журнала: 2023, Номер 476, С. 146719 - 146719
Опубликована: Окт. 16, 2023
Язык: Английский
Процитировано
31
Nano Energy, Год журнала: 2023, Номер 120, С. 109153 - 109153
Опубликована: Дек. 2, 2023
Язык: Английский
Процитировано
30
Journal of Energy Chemistry, Год журнала: 2023, Номер 88, С. 232 - 241
Опубликована: Сен. 27, 2023
The incorporation of partial A-site substitution in perovskite oxides represents a promising strategy for precisely controlling the electronic configuration and enhancing its intrinsic catalytic activity. Conventional methods typically involve prolonged high-temperature processes. While these processes promote development unique nanostructures with highly exposed active sites, they often result uncontrolled introduced elements. Herein, we present novel approach synthesizing two-dimensional (2D) porous GdFeO3 strontium (Sr) utilizing microwave shock method. This technique enables precise control Sr content simultaneous construction 2D structures one step, capitalizing on advantages rapid heating cooling (temperature ∼1100K, rate ∼70 K s−1). sites this oxygen-rich defect structure can be clearly revealed through simulation comprehensive analysis crystal structure. For electrocatalytic oxygen evolution reaction application, synthesized Gd0.8Sr0.2FeO3 electrocatalyst exhibits an exceptional overpotential 294 mV at current density 10 mA cm−2 small Tafel slope 55.85 dec−1 alkaline electrolytes. study offers fresh perspective designing configurations perovskite.
Язык: Английский
Процитировано
26
Carbon Neutralization, Год журнала: 2023, Номер 2(6), С. 709 - 720
Опубликована: Окт. 17, 2023
Abstract Developing an efficient and stable oxygen evolution reaction (OER) catalyst is beneficial in various energy conversion storage applications for achieving the “Carbon Neutrality” goal. Among iron‐based perovskite oxides (AFeO 3 ), LaFeO stands out as a preferred electrocatalytic OER due to its exceptional selectivity bonding at A‐site. The introduction of A‐site substitution controlled morphological engineering structures has proven effective enhancing electrical conductivity intrinsic catalytic activity. Nevertheless, conventional approach often involves prolonged high‐temperature calcination, leading agglomeration nanostructures, particularly two‐dimensional (2D) porous configurations. Herein, we introduce novel method synthesizing 2D with Sr using microwave shock. This technique capitalizes on benefits transient heating cooling, enabling simultaneous construction morphology precise regulation one step. By conducting theoretical simulations electron configuration analysis crystal structure, unveil impact activity . synthesized La 0.2 0.8 FeO (LSFO‐8) exhibits overpotential 339 mV 10 mA cm −2 small Tafel slope 56.84 dec −1 alkaline electrolyte. investigation provides fresh perspective design electronic highly active materials.
Язык: Английский
Процитировано
23
Advanced Materials, Год журнала: 2024, Номер 36(26)
Опубликована: Апрель 4, 2024
A cost-effective, scalable ball milling process is employed to synthesize the InGeSiP
Язык: Английский
Процитировано
15
Surfaces and Interfaces, Год журнала: 2024, Номер 46, С. 104054 - 104054
Опубликована: Фев. 8, 2024
Язык: Английский
Процитировано
13
Corrosion Science, Год журнала: 2024, Номер 233, С. 112108 - 112108
Опубликована: Май 6, 2024
Язык: Английский
Процитировано
12