CoO/MoO3@Nitrogen-Doped carbon hollow heterostructures for efficient polysulfide immobilization and enhanced ion transport in Lithium-Sulfur batteries

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 664, P. 617 - 625

Published: March 11, 2024

Language: Английский

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Synergistic Performance Boosts of Dopamine‐Derived Carbon Shell Over Bi‐metallic Sulfide: A Promising Advancement for High‐Performance Lithium‐Ion Battery Anodes

Advanced Science, Journal Year: 2024, Volume and Issue: 11(15)

Published: Feb. 11, 2024

A CoMoS composite is synthesized to combine the benefits of cobalt and molybdenum sulfides as an anodic material for advanced lithium-ion batteries (LIBs). The synthesis accomplished using a simple two-step hydrothermal method resulting nanocomposites are subsequently encapsulated in carbonized polydopamine shell. procedure exploited self-polymerization ability dopamine create nitrogen-doped carbon-coated sulfide, denoted CoMoS@NC. Notably, de-lithiation capacity CoMoS@NC 420 709 mAh g⁻

Language: Английский

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Insight into lithiation mechanism of Co3S4 anode for lithium-ion batteries triggered by Keggin POMs and GO

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159999 - 159999

Published: Jan. 1, 2025

Language: Английский

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Optimization Design of Fluoro‐Cyanogen Copolymer Electrolyte to Achieve 4.7 V High‐Voltage Solid Lithium Metal Battery

Advanced Science, Journal Year: 2024, Volume and Issue: 11(31)

Published: June 18, 2024

Abstract Raising the charging voltage and employing high‐capacity cathodes like lithium cobalt oxide (LCO) are efficient strategies to expand battery capacity. High voltage, however, will reveal major issues such as electrolyte's low interface stability weak electrochemical stability. Designing high‐performance solid electrolytes from standpoint of substance genetic engineering design is consequently vital. In this instance, stable SEI CEI layers constructed, a 4.7 V high‐voltage copolymer electrolyte (PAFP) with fluoro‐cyanogen group generated by polymer molecular engineering. As result, PAFP has an exceptionally broad window (5.5 V), high Li + transference number (0.71), ultrahigh ionic conductivity (1.2 mS cm −2 ) at 25 °C. Furthermore, Li||Li symmetric cell possesses excellent 2000 cycles 1 mA . The LCO|PAFP|Li batteries have 73.7% retention capacity after 1200 cycles. Moreover, it still cycling V. These characteristics above also allow run stably loading, showing proposed provides new insights into resistant electrolytes.

Language: Английский

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In-Situ Polymerization for Catalytic Graphitization of Boronated PAN Using Aluminum and Zirconium Containing Co-Catalysts

Inorganics, Journal Year: 2025, Volume and Issue: 13(1), P. 16 - 16

Published: Jan. 8, 2025

In-situ polymerization is an effective method for integrating co-catalysts homogeneously into the polymer matrix. Polyacrylonitrile (PAN)-derived highly graphitized carbon a state-of-the-art material with diverse applications, including materials energy storage devices, electrocatalysis, sensing, adsorption, and making structural composites of various technologies. Such can be effectively obtained through in-situ polymerization. The addition external catalysts during not only enhances rate but also facilitates degree graphitization quality graphitic upon at moderate temperatures. In this study, we apply technique to integrate aluminum triflate (Al(OTf)3) zirconocene dichloride (C5H5)2ZrCl2 co-catalyst boronated polyacrylonitrile (B-PAN) ensures uniform distribution without aggregation, facilitating formation well-ordered structure moderated temperature. Boronated solutions, (Al(OTf)3, or both) were prepared process, dried in oven, then subjected 1250 °C heating 1 min−1 h under N2 atmosphere. resulting was characterized determine impact on graphitization. This study provides valuable insights synthesizing high-quality materials, offering promising pathways their scalable production strategic use co-catalysis. These have potential applications fields, environmental technologies, storage, conversion, pathway design facile economical materials.

Language: Английский

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Cyanide Functionalization and Oxygen Vacancy Creation in Ni‐Fe Nano Petals Sprinkled with MIL‐88A Derived Metal Oxide Nano Droplets for Bifunctional Alkaline Seawater Electrolysis

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Abstract This work investigates novel improvements in FeNi‐layered double hydroxide (LDH)/MIL‐88A heterocomposite for sustainable seawater electrolysis through a single‐step dual functionalization process. The Fe/Ni precursor weight ratio is optimized, resulting the formation of smaller LDH petals and nano‐sized MIL‐88A metal–organic framework, which transforms into clusters Fe 2 O 3 nanospheres within nitrogen‐functionalized carbon matrix over NiFe 4 nano upon calcination. Furthermore, oxygen vacancies, nitrogen are attained single step by employing thermal ammonia reduction, significantly improving evolution reaction (OER) hydrogen (HER) activities. Particularly vacancy found to accelerate O─O coupling OER lowering activation barrier. Likewise, promotes destabilizing hydride intermediates HER potentially facilitating faster proton‐coupled electron transfer. Hence, optimized electrode achieves current densities 200 mA cm −2 at overpotentials 350 240 mV respectively. chronopotentiometry stability tests confirms electrode's durability h 20 alkaline electrolyte. electrode, composed cost‐effective environmentally friendly materials, demonstrates robustness electrolytes, positioning it as strong candidate practical water applications.

Language: Английский

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Green synthesis and interface engineering of CoMoO4–Ag Heterostructures: Enhanced electrochemical performance for Lithium-Ion batteries

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160748 - 160748

Published: Feb. 1, 2025

Language: Английский

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Unlocking enhanced electrochemical performance through oxygen–nitrogen dual functionalization of iron–nickel–sulfide for efficient energy storage systems

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(28), P. 17369 - 17381

Published: Jan. 1, 2024

This study showcases a supercapacitor device with oxygen–nitrogen dual functionalized and sulfurized iron–nickel hydroxysulfide, demonstrating high performance stability for energy storage.

Language: Английский

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Tuning capacitance of bimetallic ZnCo2O4 using anionic, cationic and non-ionic surfactants by hydrothermal synthesis for high-performance asymmetric supercapacitor

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 169, P. 113035 - 113035

Published: Aug. 25, 2024

Language: Английский

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Dual‑carbon confined Sb2Se3 nanorods for potassium ion batteries anode with improved capacity and cycling stability

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 87, P. 111520 - 111520

Published: April 1, 2024

Language: Английский

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