The Development and Experimental Analysis of Freestanding Single‐Walled Carbon Nanotube/Sulfur Composite Cathode for the Next Generation of Sulfur‐Based Batteries

Energy Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

This work uses a solution‐based and scalable method to provide freestanding single‐walled carbon nanotube (SWCNT)/S cathode in both LiS NaS batteries. SWCNTs with high conductivity surface area can enhance the flexibility. The incorporation of oxygen sulfur bonds active redox sites for chemical adsorption. Sulfur effectively hinder shuttle effect by improving interactions between polysulfides nonpolar framework, leading improved cyclability cells. cycling stability plots batteries SWCNT/S as are investigated 150 cycles at current density 1000 mA g −1 . Both cells display stable capacity behavior during cycling. discharge cell is retained 978.2 mAh while only shows retention 769.4 after cycles. Coulombic efficiencies ≈94% 90% observed respectively. Therefore, hinders polysulfide shuttle, providing electrolyte diffusion, resulting material reutilization minimized fading. Freestanding over long‐term proved be promising

Language: Английский

---

Achieving remarkable capacitive efficiency of pyrochlore type Mn2V2O7 with graphtic carbon nitride (g-C3N4) nanosheets for hybrid supercapacitor applications

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112705 - 112705

Published: March 1, 2025

Language: Английский

---

Carbon nanotubes oriented bifunctional electrocatalyst supported on flexible material for overall water splitting

Fuel, Journal Year: 2025, Volume and Issue: 394, P. 135160 - 135160

Published: March 23, 2025

Language: Английский

---

Synergistic Promotion of Adsorption-Conversion for Lithium Polysulfides through Ion/Electron Coconductive Catalytic Triple-Phase Interface by the Geometric Torsion of Lithium Lanthanum Titanate Electrocatalyst

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Rationally designing and constructing ionic/electronic coconductor electrocatalysts with adjustable active sites to enhance the redox kinetics of lithium–sulfur batteries (LSBs) in lean electrolyte conditions is a challenge. Herein, this study presents promotion for lithium polysulfides (LiPSs) through construction ion/electron coconductive catalytic triple-phase interface using lanthanum titanate/carbon (LLTO/C) nanofibers, which due manipulating geometric torsion BO6 octahedron LLTO. Experiments theoretical calculations demonstrate that changes coordination environment O–Ti–O LLTO causes oxygen vacancy lattice distortion. This enhances local electronic state density, ion migration rate, high activity LLTO, thereby resulting synergistic effect good chemisorption rapid conversion LiPSs. Therefore, when modified separator used, LSBs electrocatalyst realize discharge capacity 1024 mA h·g–1 at current rate 2 C. Upon sulfur loading 9 mg ·cm–2 electrolyte/sulfur ratio 4 μL· mg–1, an acceptable areal 9.1 h· cm–2 achieved. work provides new perspective rational design catalysts LSBs.

Language: Английский

---

Electrodeposition of poly(aniline-co-4-nitroaniline)/CoAl-layered double hydroxide composites as electrode materials for supercapacitor applications

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114450 - 114450

Published: March 1, 2025

Language: Английский

---

Analysis of hydrothermally formed MnTiO3/rGO hybrid electrode for supercapacitor device

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: unknown, P. 112287 - 112287

Published: April 1, 2025

Language: Английский

---

Cerium(IV) oxide-modified graphite anode for superior performance towards electrochemical treatment of the simulated textile dyebath effluent

Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown, P. 130859 - 130859

Published: April 1, 2025

Language: Английский

---

Exploring the potential of bismuth vanadate nanoparticles in supercapacitor technology

Frontiers of Chemical Science and Engineering, Journal Year: 2025, Volume and Issue: 19(5)

Published: March 25, 2025

Language: Английский

---

Rare Earth Ce/CeO2 Electrocatalysts: Role of High Electronic Spin State of Ce and Ce3+/Ce4+ Redox Couple on Oxygen Reduction Reaction

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(8), P. 600 - 600

Published: April 14, 2025

With unique 4f electronic shells, rare earth metal-based catalysts have been attracting tremendous attention in electrocatalysis, including oxygen reduction reaction (ORR). In particular, atomically dispersed Ce/CeO2-based explored extensively due to several features. This review article provides a comprehensive understanding of (i) the significance effect Ce high-spin state on ORR activity enhancement Pt and non-pt electrocatalysts, (ii) spatially confining stabilizing ceria generation transition catalysts, (iii) experimental theoretical evidence Ce3+ ↔ Ce4+ redox pain radical scavenging, (iv) electrons d-band center electron transfer between N-doped carbon metal for enhanced activity, (v) Pt/CeO2/carbon heterojunctions stability electrocatalyst ORR. Among strategies synthesizing Ce/CeO2 metal–organic framework (MOF)-derived are being perused tendency readily coordinate with O- N-containing ligands, which upon undergoing pyrolysis, results formation high surface area, porous networks metallic/clusters/nanoparticles active sites. paper an overview recent advancements regarding derived from MOF precursor fuel cells metal–air battery applications we conclude insights into key issues future development directions.

Language: Английский

---

Specifying the Mo doped CaFeO3 electrode material for the application in supercapacitor

Applied Physics A, Journal Year: 2025, Volume and Issue: 131(5)

Published: April 18, 2025

Language: Английский

---