Nanoscale, Journal Year: 2024, Volume and Issue: 16(16), P. 8020 - 8027
Published: Jan. 1, 2024
Pt/MXene heterostructures were prepared by constructing oxygen vacancies on MXene to anchor Pt nanoparticles, which exhibited accelerated HER kinetics in 0.5 M H 2 SO 4 solution due the synergistic effect between MXenes and nanoparticles.
Language: Английский
Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144375 - 144375
Published: June 24, 2023
Language: Английский
Citations
30
Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 329, P. 122560 - 122560
Published: March 5, 2023
Language: Английский
Citations
28
International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 48(94), P. 36722 - 36749
Published: June 22, 2023
Language: Английский
Citations
28
Carbon Energy, Journal Year: 2023, Volume and Issue: 6(1)
Published: Aug. 17, 2023
Abstract Ruthenium (Ru) has been regarded as one of the most promising alternatives to substitute Pt for catalyzing alkaline hydrogen evolution reaction (HER), owing its inherent high activity and being cheapest platinum‐group metal. Herein, based on idea strong metal–support interaction (SMSI) regulation, Ru/TiN catalysts with different degrees TiN overlayer over Ru nanoparticles were fabricated, which applied electrolytic water. Characterizations reveal that would gradually encapsulate induce more electron transfer from support by Ru–N–Ti bond SMSI degree increased. Further study shows exposed Ru–TiN interfaces greatly promote H 2 desorption capacity. Thus, Ru/TiN‐300 a moderate exhibits excellent HER performance, an overpotential 38 mV at 10 mA cm −2 . Also, due encapsulation role nanoparticles, it displays super long‐term stability very slight potential change after 24 h. This provides deep insight into influence effect between offers novel approach preparing efficient stable electrocatalysts through engineering.
Language: Английский
Citations
24
Small, Journal Year: 2024, Volume and Issue: 20(25)
Published: Jan. 26, 2024
Abstract To improve the sluggish kinetics of hydrogen evolution reaction (HER), a key component in water‐splitting applications, there is an urgent desire to develop efficient, cost‐effective, and stable electrocatalysts. Strain engineering proving efficient strategy for increasing catalytic activity This work presents development Ru‐Au bimetallic aerogels by simple one‐step situ reduction‐gelation approach, which exhibits strain effects electron transfer create remarkable HER stability alkaline environment. The surface induced segregated structure shifts d ‐band center downward, enhancing catalysis balancing processes water dissociation, OH* adsorption, H* adsorption. Specifically, optimized catalyst shows low overpotentials only 24.1 mV at current density 10 mA cm −2 electrolytes, surpassing commercial Pt/C. study can contribute understanding electrocatalysts atomic scale.
Language: Английский
Citations
15
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)
Published: March 13, 2024
Abstract It is a great challenge to induce the formation of RuP 4 phase and realize construction metal‐rich phase/phosphorus‐rich phase‐ruthenium phosphide heterostructure by directional regulation proportion P metal atoms. The ultra‐high conductivity Ru 2 excellent ability V‐doped absorb/desorb H* are confirmed density functional theory (DFT) calculations, which laid theoretical foundation for unique P/V‐RuP structure accelerate HER reaction kinetics. This work innovatively uses V‐doping strategy with high intrinsic activity, finally construct V‐Ru x y nanosheets rich Ru/Ru heterostructures. Thanks optimization V dopants, catalyst only needs 180 mV obtain an industrial‐grade current 1 A cm −2 . In summary, this provides new idea design performance ruthenium‐based catalysts.
Language: Английский
Citations
15
International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 58, P. 646 - 656
Published: Jan. 26, 2024
Language: Английский
Citations
12
Nano Energy, Journal Year: 2024, Volume and Issue: 126, P. 109698 - 109698
Published: May 4, 2024
Language: Английский
Citations
12
Small, Journal Year: 2025, Volume and Issue: unknown
Published: March 6, 2025
The development of efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) is essential realization effective production via seawater electrolysis. Herein, study has developed a simple method that combines electrospinning with subsequent thermal shock technology to effectively disperse ruthenium nanoparticles onto highly conductive titanium carbide nanofibers (Ru@TiC). electronic metal-support interactions (EMSI) resulted from charge redistribution at interface between Ru TiC support can optimize desorption kinetics sites induce spillover phenomenon, thereby improving evolution. As result, Ru@TiC catalyst exhibits outstanding HER activity, requiring low overpotentials only 65 mV in alkaline current density 100 mA cm-2. Meanwhile, demonstrates excellent stability, maintaining consistent operation 500 cm-2 least 250 hours. Additionally, an anion exchange membrane electrolyzer incorporating operated continuously over hours 200 seawater. This highlights significant potential robust supports fabrication enduring enhance complex environments.
Language: Английский
Citations
1
Exploration, Journal Year: 2023, Volume and Issue: 4(1)
Published: Nov. 14, 2023
Abstract Plasma etching treatment is an effective strategy to improve the electrocatalytic activity, but improvement mechanism still unclear. In this work, a nitrogen‐doped carbon nanotube‐encased iron nanoparticles (Fe@NCNT) catalyst synthesized as model catalyst, followed by plasma with different parameters. The activity of revealed combining physicochemical characterizations and electrochemical results. As result, highly active metal–nitrogen species introduced nitrogen are recognized main contribution improved defects induced also contribute activity. addition, prepared demonstrates superior ORR stability than commercial Pt/C catalyst.
Language: Английский
Citations
21