Chemical Communications, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
A hierarchical WC/NiCoW nanotube array enhances HER performance by promoting bubble surface release. The WC–NiCoW interface optimizes electronic structure, thus achieving high activity and stability across alkaline, acidic, neutral electrolytes.
Язык: Английский
Nano Energy, Год журнала: 2024, Номер unknown, С. 110564 - 110564
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
24
International Journal of Hydrogen Energy, Год журнала: 2025, Номер 101, С. 1044 - 1053
Опубликована: Янв. 6, 2025
Язык: Английский
Процитировано
2
Advanced Sustainable Systems, Год журнала: 2025, Номер unknown
Опубликована: Янв. 22, 2025
Abstract There is an imperative need for highly efficient electrocatalysts cost‐effective hydrogen production. Herein, a self‐supported, hybrid composite as bifunctional electrocatalyst introduced. This achieved by in situ growth of MoS 2 ‐Ni 3 S on nickel foam (NF), designated /NF, synthesized facile one‐step hydrothermal synthesis method. /NF exhibits low overpotentials only 187 and 146 mV OER HER, respectively, to achieve current density 10 mA cm −2 1 M KOH. The practical application the designed verified constructing || symmetrical membrane electrode assembly (MEA) 4 working area anion exchange water electrolyzer. system shows continuous electrolysis monitored 48 h duration. For OER, optimum d‐band center −1.66 eV heterostructure calculated from Density Functional Theory (DFT) studies. factors like unique structure electrocatalyst, enhanced hydrophilicity, improved electrochemically accessible number sites (ECASs), center, are expected be primary contributors system's performance. Thus, present finding unveils straightforward approach creating stable advancing commercial realm renewable electrochemical energy conversion.
Язык: Английский
Процитировано
2
Inorganic Chemistry Frontiers, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
The heterostructure catalyst Fe-Ni 3 S 2 /NiS exhibits excellent activity and stability. doped Fe acts as a sacrificial agent in the oxygen evolution reaction (OER), maintaining high of Ni, preventing Ni–S bond degradation.
Язык: Английский
Процитировано
2
Journal of Colloid and Interface Science, Год журнала: 2025, Номер 690, С. 137336 - 137336
Опубликована: Март 14, 2025
Язык: Английский
Процитировано
1
Journal of Alloys and Compounds, Год журнала: 2024, Номер 1010, С. 177480 - 177480
Опубликована: Ноя. 10, 2024
Язык: Английский
Процитировано
5
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Авг. 2, 2024
Abstract Aiming to efficiently expedite alkaline overall water splitting (OWS) by addressing challenges such as sluggish kinetics and limited stability, a hollow Fe‐doped Ni(OH) 2 ‐NiS@Ni(OH) nanorod array with surface nanosheets is devised, featuring high‐index (101)‐NiS(211) heterostructural interface an upshifted d ‐band center. This nanoarchitecture intensifies the adsorption interaction of H O OH − reactants on electrocatalyst surface, suitably bonds * intermediate in hydrogen evolution reaction (HER) accelerates electron movement H, minimizes energy requirement rate‐limiting phase ( → O) oxygen (OER) facilitating O─H cleavage optimally adsorbs O, amplifies exposure surface‐active centers, ultimately reduces apparent activation energy. Consequently, overpotentials are low 66.4 mV 254.9 at 10 mA cm −2 , alongside high turnover frequencies 142 s −1 (H ) 279 (O 100 300 mV, respectively, markedly outperforming direct‐electrodeposited analogues. When functioning bifunctional electrode OWS, this material merely requires 1.57 V sustains operation for 168 h, approaching Pt/C||RuO benchmark.
Язык: Английский
Процитировано
4
Inorganic Chemistry Frontiers, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
Fe,Ce-Ni 3 S 2 @NF nanoneedle catalysts synthesised via a one-step hydrothermal route showed good OER performance.
Язык: Английский
Процитировано
4
Materials, Год журнала: 2025, Номер 18(2), С. 263 - 263
Опубликована: Янв. 9, 2025
There is a growing focus on sustainability, characterized by making changes that anticipate future needs and adapting them to present requirements. Sustainability reflected in various areas of materials science as well. Thus, more research focused the fabrication advanced based earth-abundant metals. The role iron its alloys particularly significant second most abundant metal our planet. Additionally, electrochemical method offers an environmentally friendly approach for synthesizing multifunctional alloys. can be successfully codeposited with targeted from complexing electrolytes, opening large horizon smart tuning properties enabling applications. In this review, we discuss practical aspects electrodeposition iron-based refractory metals having magnetic, catalytic, mechanical, antimicrobial/antibacterial thermal, wear, corrosion resistance. Peculiarities electrolytes are practically they greatly influence final structure, composition, designed adjusting electroactive complexes solution. Moreover, these further upgraded into composites, multi-layered, hybrid/recovered materials, or high-entropy
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 14, 2025
Abstract Electronic structure engineering via integrating different defects is the key to achieving independent tuning of intermediate energetics for efficient electrocatalyst design. Such a combination at forefront current research. Herein, W etched from Co(OH) 2 generate Co vacancies, which are then partially filled with La form ‐Co V ‐La D oxygen evolution reaction (OER). The results show that vacancy and dopant induce more high‐valence species under OER conditions most active center surface site adjacent subsurface on sides, where optimized electronic narrows gap between Gibbs free energies OH* (ΔG ) OOH* modifies ΔG O* close midpoint, leading high catalytic activity. integration synergistic offers an effective strategy range defect atomic configurations diverse states, enable energetics, thereby unlocking catalyst's full potential.
Язык: Английский
Процитировано
0