Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177788 - 177788
Published: Nov. 1, 2024
Language: Английский
Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177788 - 177788
Published: Nov. 1, 2024
Language: Английский
Rare Metals, Journal Year: 2025, Volume and Issue: unknown
Published: March 17, 2025
Language: Английский
Citations
1Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(27), P. 12572 - 12581
Published: June 26, 2024
The kinetics of electrocatalytic reactions are closely related to the number and intrinsic activity active sites. Open sites offer easy access substrate allow for efficient desorption diffusion reaction products without significant hindrance. Metal-organic frameworks (MOFs) with open show great potential in this context. To increase density sites, trimesic acid was utilized as a ligand anchor more Ni situ construct nickel foam-loaded Ni-based MOF electrocatalyst (Ni-TMA-MOF/NF). When tested an benzyl alcohol oxidation, Ni-TMA-MOF/NF exhibited lower overpotential superior durability compared terephthalic (Ni-PTA-MOF/NF) Ni(OH)
Language: Английский
Citations
5Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 16, 2024
Abstract 2D materials exhibit remarkable electrochemical performance as the cathode catalyst in lithium–oxygen batteries (LOBs). Their catalytic capability mainly derives from their surface with tunable chemistry and unique electronic states. Herein, Ti 0.87 O 2 3 C MXene monolayers are applied to construct a face/face heterostructure enhance LOBs. It is demonstrated that compensation O‐terminated side achieved through built‐in electric field overlap of d p orbitals between units. As result, ORR/OER activity improved /MXene heterojunction due modulated ‐band center optimizes s–p coupling key intermediate LiO . The presents structural stability long‐term cycling life 425 cycles (2534 h) at 200 mA g −1 407 1000 fixed capacity 600 mAh , being nearly five three times higher than pure cathodes, respectively.
Language: Английский
Citations
4Nano Energy, Journal Year: 2024, Volume and Issue: 131, P. 110138 - 110138
Published: Aug. 28, 2024
Language: Английский
Citations
3ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 14, 2025
Designing bifunctional catalysts that improve the efficiency of both oxygen reduction (ORR) and evolution reactions (OER) is a strategy to enhance performance lithium–oxygen batteries (LOBs). Co3O4/CoFe2O4/nitrogen-doped carbon heterostructures were synthesized as electrocatalysts using coprecipitation calcination methods. The morphology composite was characterized by hollow nanocube shape, which facilitated exposure active sites provided space for Li2O2 storage. At heterogeneous interface, electronic interactions gave rise interfacial charge redistribution. This redistribution not only improved catalytic activity but also induced generation reversible decomposition mixed LiOH discharge products. On this basis, specific capacity when used cathode catalyst 8930 mAh g–1 could be stably cycled 118 cycles, an improvement over single Co3O4 cathode.
Language: Английский
Citations
0Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162742 - 162742
Published: Feb. 1, 2025
Language: Английский
Citations
0EnergyChem, Journal Year: 2025, Volume and Issue: unknown, P. 100150 - 100150
Published: March 1, 2025
Language: Английский
Citations
0Nano Letters, Journal Year: 2025, Volume and Issue: unknown
Published: April 27, 2025
In Li-O2 batteries, Li2O2 serves as the primary cathodic material but its wide band gap imparts insulating properties. Regulating composition and morphology of enables construction a novel structure with exceptional electrochemical performance. Herein, we introduce an organic salt containing cobalt ions, acetylacetonate (Co(acac)2), into electrolyte. We exploit cation migration characteristics under electric field to facilitate generation decomposition Co-doped Li2O2, achieving gradient control optimized growth Li2O2. Moreover, Co(acac)2 molecule stabilizes properties LiOx species mitigates side reaction. situ UV-vis XANES spectra reveal direct interactions between O2-/LiO2, highlighting superior reversibility enhanced batteries. Both experimental theoretical results indicate that this battery system exhibits rapid reaction kinetics, reduced overpotential 520 mV extended cyclability, surpassing 400 cycles lower polarization.
Language: Английский
Citations
0Published: Jan. 1, 2024
Language: Английский
Citations
0Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177788 - 177788
Published: Nov. 1, 2024
Language: Английский
Citations
0