Design of Composite N-Doped Carbon Nanofiber/TiO2/Diatomite Separator for Lithium–Sulfur Batteries DOI Open Access
Wenjie Xiao, Xiaoyu Wu,

Shu Yang

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(22), P. 5615 - 5615

Published: Nov. 17, 2024

Lithium–sulfur batteries (LSBs) exhibit high theoretical specific capacities, abundant resource reserves, and low costs, making them promising candidates for next-generation lithium-ion (LIBs). However, significant challenges, such as the shuttle effect volume expansion, hinder their practical applications. To address these issues, this study introduces a unique intermediate layer comprising N-doped carbon nanofiber/TiO2/diatomite (NCNF/TiO2/DE) from perspective of membrane modification. The comprises nitrogen-doped titanium dioxide/carbon nanofiber (NCNF/TiO2) materials, with diatomite filling fiber gaps. This forms three-dimensional (3D) conductive network that provides ample space sulfur expansion numerous adsorption active sites, thereby accelerating electrolyte penetration diffusion. These features collectively contribute to outstanding electrochemical performance battery. At 0.1 C, NCNF/TiO2/DE-800-coated separator battery achieved first-cycle discharge capacity 1311.1 mAh g−1, significantly higher than uncoated lithium–sulfur (919.6 g−1). Under varying current densities, NCNF/TiO2/DE-800 material demonstrates good reversibility exhibits diffusion rates charge-transfer resistance. Therefore, an advanced enhances batteries.

Language: Английский

Insights into the application of cerium dioxide nanoparticle-modified cobalt phosphide as an efficient electrocatalyst for high-performance lithium–sulfur batteries DOI
Xiaofei Wang,

Ganfan Zhang,

Yue Li

et al.

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(20), P. 6928 - 6939

Published: Jan. 1, 2024

The introduction of cerium oxide into cobalt phosphide can significantly regulate the electronic structure, modify catalytic activity and finally enhance electrochemical performance lithium–sulfur batteries.

Language: Английский

Citations

6
Role of metal-organic frameworks in mitigating the shuttle effect and accelerating reaction kinetics in lithium-sulfur Batteries:A density functional theory study DOI
You Hu,

Junhua Chen,

Xingyu Chen

et al.

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 632, P. 236362 - 236362

Published: Jan. 31, 2025

Language: Английский

Citations

0
Effect of GdO/C composite doping on the electrochemical and kinetic behavior of AB5-type hydrogen storage alloy DOI
Hui Yong, Xiangyang Wang, Wei Zhang

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 109, P. 1145 - 1154

Published: Feb. 16, 2025

Language: Английский

Citations

0
Atomic Layer Deposition of Graphene‐Based Nanohybrid Interlayer for Potential Improvement in Lithium‐Sulfur Batteries DOI Open Access
Hazal Gergeroglu, Mato Knez, M. Ziya Söğüt

et al.

Energy Storage, Journal Year: 2025, Volume and Issue: 7(3)

Published: March 25, 2025

ABSTRACT Lithium‐sulfur batteries (LSBs) are viable options for next‐generation energy storage owing to their nontoxic characteristics, elevated theoretical density, and abundant sulfur. However, LSBs face significant challenges, including the shuttle effect, volumetric expansion, low ionic conductivity, anode degradation. Recent creative developments, such as improved electrolyte compositions, protective coatings, novel interlayers, have been introduced solve these issues. Among these, interlayers suffer from issues with lithium polysulfides (LiPSs) capturing ability, mechanical chemical stability, ion electrical thickness, weight, even though they stand out having potential improve battery performance by managing LiPSs improving electron transport. This study aims develop an innovative interlayer LSB systems synthesizing characterizing a nanohybrid combining high‐surface‐area, high‐ion electrically conductive, mechanically chemically stable three‐dimensional graphene foam (3D GF) ultra‐thin Al 2 O 3 enhancing capture without adding weight or volume. Considering this goal, matrix of nanohybrids was initially developed 3D GF through catalytic vapor deposition (CVD). Following that, amorphous films were deposited on using atomic layer (ALD), cycles varying 25 200, optimize film characteristics. Comprehensive analyses SEM (scanning microscopy), EDX (energy‐dispersive X‐ray spectroscopy), Raman spectroscopy, XRD (X‐ray diffraction), XRR reflectivity) confirmed successful synthesis GF/Al nanohybrids. analysis revealed that porous network structure remained intact following deposition, indicating minimal disruption. demonstrated desired composition thin film, while spectroscopy maintenance structural characteristics postdeposition. showed consistent layer‐by‐layer growth films. Moreover, heat treatment‐focused studies indicated thicker ALD‐based facilitated alpha‐phase crystallization at lower temperatures. To best authors' knowledge, introduces initial design producing nanohybrids, revealing approach towards straightforward, effective, scalable production methods alternative effective strategy.

Language: Английский

Citations

0
Biomimetic Membrane‐Like Co/CoSe2@CNF‐CNT (L) with Selective Permeability for Enhanced Performance of Lithium–Sulfur Battery DOI
Siqi Wang, Kai Sun, Han Guo

et al.

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

Published: May 2, 2025

Abstract Inspired by the multifunctionality and precise regulation of biological membranes, this work designs a biomimetic membrane‐like structure for lithium–sulfur (Li–S) batteries. By controlling selenization time, composition metal catalyst material's microstructure is regulated, resulting in self‐supporting 3D porous conductive network Co/CoSe 2 ‐modified carbon nanofiber (CNF) with situ grown nanotubes (CNT) (Co/CoSe @CNF‐CNT (L)). Drawing inspiration from selective permeability (L) system achieves dual‐functionality. On one hand, catalyst, possessing Lewis acid properties, provides strong binding affinity lithium polysulfides (LiPSs), effectively inhibiting their migration. Additionally, CNF CNT form microporous structure, which inhibits shuttle effect. This behavior analogous to specific proteins membranes that selectively recognize bind certain substances. other CNF‐CNT has numerous ion channels ensure efficient lithium‐ion (Li + ) transport, mirroring role or carrier membranes. Consequently, cell exhibits reversible capacity 1425.21 mAh g −1 at 1 A retains 875.33 after 500 cycles. Furthermore, cells exhibit excellent stability under high currents prolonged cycling.

Language: Английский

Citations

0
Investigation of electrochemical and kinetic properties on AB5-type hydrogen storage alloy catalyzed by Yb2O3/C composite DOI
Xiangyang Wang, Hui Yong, Qianqian Zhang

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 80, P. 712 - 724

Published: July 17, 2024

Language: Английский

Citations

2
Effect of catalysts La2O3/Carbon on the electrochemical and kinetic properties of AB5-type hydrogen storage alloy DOI
Xiangyang Wang, Hui Yong, Yan Cui

et al.

Fuel, Journal Year: 2024, Volume and Issue: 375, P. 132553 - 132553

Published: July 19, 2024

Language: Английский

Citations

2
Comparative analysis of TiO2 and Al2O3 surface coatings on battery electrodes for enhanced lithium-ion battery performance: addressing selected issues of the Indian electric vehicle supply chain DOI Creative Commons
Kartik Rohit,

Ajay Verma

Matéria (Rio de Janeiro), Journal Year: 2024, Volume and Issue: 29(3)

Published: Jan. 1, 2024

Language: Английский

Citations

1
Hierarchical carbon nanofiber/NiCo2O4 composites as electrode for high-performance supercapacitors DOI Creative Commons
Qiqi Zhuo,

Yalou Lv,

Hanzhao Wu

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 6, 2024

Abstract Carbon Nanofibers (CNFs)/transition metal oxides (TMOs) composites have obtained much attention as supercapacitor electrode with benefits from the superior electrical conductivity of carbon materials and high capacity TMOs. However, nano-size TMOs is prone to agglomeration hard grow efficiently uniformly on CNFs due surface lack effective targets, which limits its performance. In this paper, different hierarchical structures CNFs-NiCo2O4 were prepared assembled electrode. The results showed that by treatment potassium permanganate exhibited a capacitance 1175 F g− 1 at current density 1 A long-term cycling stability, 93% retention after 3000 cycles. excellent electrochemical performance could be attributed more active sites introduced solvent treatment, beneficial for NiCo2O4 CNFs. This approach provides new strategy controllable design synthesis homogeneous CNFs/TMOs composites.

Language: Английский

Citations

0
Design of Composite N-Doped Carbon Nanofiber/TiO2/Diatomite Separator for Lithium–Sulfur Batteries DOI Open Access
Wenjie Xiao, Xiaoyu Wu,

Shu Yang

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(22), P. 5615 - 5615

Published: Nov. 17, 2024

Lithium–sulfur batteries (LSBs) exhibit high theoretical specific capacities, abundant resource reserves, and low costs, making them promising candidates for next-generation lithium-ion (LIBs). However, significant challenges, such as the shuttle effect volume expansion, hinder their practical applications. To address these issues, this study introduces a unique intermediate layer comprising N-doped carbon nanofiber/TiO2/diatomite (NCNF/TiO2/DE) from perspective of membrane modification. The comprises nitrogen-doped titanium dioxide/carbon nanofiber (NCNF/TiO2) materials, with diatomite filling fiber gaps. This forms three-dimensional (3D) conductive network that provides ample space sulfur expansion numerous adsorption active sites, thereby accelerating electrolyte penetration diffusion. These features collectively contribute to outstanding electrochemical performance battery. At 0.1 C, NCNF/TiO2/DE-800-coated separator battery achieved first-cycle discharge capacity 1311.1 mAh g−1, significantly higher than uncoated lithium–sulfur (919.6 g−1). Under varying current densities, NCNF/TiO2/DE-800 material demonstrates good reversibility exhibits diffusion rates charge-transfer resistance. Therefore, an advanced enhances batteries.

Language: Английский

Citations

0