Orbital‐Modulated Cu‐Doped VO2 Nanoflowers via Glucose‐Assisted Synthesis: Structural Optimization and Electronic Coupling Engineering for High‐Capacity Aqueous Aluminum Ion Batteries DOI

Zhibao Wang,

Hanqing Gu, Zhanyu Li

et al.

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

Published: May 5, 2025

Abstract Vanadium oxide cathode materials in aqueous aluminum‐ion batteries (AAIBs) have an exceptional potential for development because of their high valence and fast electron transfer capability. However, the strong electron–electron Coulomb repulsion vanadium its associated electrostatic interactions severely hinder feasibility oxides AAIBs. The glucose‐assisted hydrothermal reduction monoclinic VO 2 combined with Cu ion doping effectively promotes self‐assembly into nanoflower architectures, enabling precise control over morphology crystalline structure. When integrated a 5 m Al(OTF) 3 electrolyte Ionic liquid （IL ）‐treated Al sheet anode, this full battery demonstrates outstanding electrochemical performance, achieving initial discharge capacity 642 mAh·g −1 at 0.4 A·g . Moreover, introducing 3d orbitals enhances hybridization electronic coupling effects between V O 2p orbitals. Ex situ characterization diffusion kinetic provide insights embedding/de‐embedding mechanism 3+ This work significantly improves application AAIBs through structural optimization studies provides systematic scientific guidance materials.

Language: Английский

Emerging Issues and Opportunities of 2D Layered Transition Metal Dichalcogenide Architectures for Supercapacitors DOI
Shude Liu, Huilin Zhang, Peng Xue

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Two-dimensional layered transition metal dichalcogenides (2D TMDs) have emerged as promising candidates for supercapacitor (SCs) owing to their tunable electronic properties, structures, and effective ion intercalation capabilities. Despite these advantages, challenges such low electrical conductivity, the interlayer restacking, oxidation structural collapse hinder practical implementation. This review provides a comprehensive overview of recent advances in development 2D TMDs SCs. We begin by outlining charge storage mechanisms design principles SCs, followed an in-depth discussion synthesis methods associated fabricating TMD architectures. The subsequent sections explore crystal structures reaction mechanisms, illustrating electrochemical potential Furthermore, we highlight material modification strategies, including nanostructuring, defect engineering, phase control, surface/interface modulation, which been proposed overcome existing challenges. Finally, address critical issues emerging opportunities inspire SC technologies.

Language: Английский

Citations

2
Interface and surface engineering of MXenes and COFs for energy storage and conversion DOI Creative Commons
Iftikhar Hussain, Murugavel Kathiresan,

Karanpal Singh

et al.

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

Published: March 11, 2025

Abstract MXenes, a class of two‐dimensional (2D) transition metal carbides, and covalent organic frameworks (COFs) deliver unique structural electrochemical properties, making them promising candidates for energy storage conversion applications. MXenes exhibit excellent conductivity tunable surface chemistries, whereas the COFs provide high porosity versatility. Recent advances in integrating MXene‐COF composites have revealed their potential to enhance charge transfer storage/conversion properties. The work highlights key developments integration, offering insights into applications batteries (Li‐ion, K‐ion, Na‐ion, Li‐S), supercapacitors, electrocatalysis (HER, OER, RR, NRR, ORRCO2), while also addressing current challenges future directions not only but other electronic devices. image

Language: Английский

Citations

0
Boosting High Energy Density for Aqueous Ni–Zn Batteries by Synergetic Engineering of Bimetal Doping and Se Vacancy in Ni3Se2 DOI

X. R. Fu,

Shuangxing Cui,

Minghui Xu

et al.

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

Published: March 20, 2025

Language: Английский

Citations

0
Recent Advances in Vanadium‐Based Cathode Materials for Aqueous Zinc‐Ion Batteries: from Fundamentals to Practical Applications DOI
Wei Zheng,

Zhonghui Sun,

Zhen‐Yi Gu

et al.

Advanced Materials Technologies, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract In recent years, aqueous zinc‐ion batteries (AZIBs) have become an ideal candidate technology for large‐scale energy storage systems due to their high safety, low cost, and environmentally friendly characteristics. However, problems such as the dissolution of cathode materials conductivity hindered practical application AZIBs. Vanadium‐based exhibit significant advantages in AZIBs by multivalent redox activity (V 2+ /V 5+ ), tunable layered/tunneled crystal structure, theoretical capacity (589 mAh g −1 ). this paper, mechanism vanadium‐based materials, material classification, modification strategies, including pre‐intercalation, defect engineering, ion doping, nanostructure design, composite construction are systematically reviewed. Through these in‐depth analyses summaries, it is expected provide guidance reference design development cathodes high‐performance future.

Language: Английский

Citations

0
Novel hollow NiMoO4 nanorods as cathode material for aluminum batteries DOI
Jian Li, Wenbin Luo,

Yi Yu

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 127, P. 117153 - 117153

Published: May 22, 2025

Language: Английский

Citations

0
Orbital‐Modulated Cu‐Doped VO2 Nanoflowers via Glucose‐Assisted Synthesis: Structural Optimization and Electronic Coupling Engineering for High‐Capacity Aqueous Aluminum Ion Batteries DOI

Zhibao Wang,

Hanqing Gu, Zhanyu Li

et al.

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

Published: May 5, 2025

Abstract Vanadium oxide cathode materials in aqueous aluminum‐ion batteries (AAIBs) have an exceptional potential for development because of their high valence and fast electron transfer capability. However, the strong electron–electron Coulomb repulsion vanadium its associated electrostatic interactions severely hinder feasibility oxides AAIBs. The glucose‐assisted hydrothermal reduction monoclinic VO 2 combined with Cu ion doping effectively promotes self‐assembly into nanoflower architectures, enabling precise control over morphology crystalline structure. When integrated a 5 m Al(OTF) 3 electrolyte Ionic liquid （IL ）‐treated Al sheet anode, this full battery demonstrates outstanding electrochemical performance, achieving initial discharge capacity 642 mAh·g −1 at 0.4 A·g . Moreover, introducing 3d orbitals enhances hybridization electronic coupling effects between V O 2p orbitals. Ex situ characterization diffusion kinetic provide insights embedding/de‐embedding mechanism 3+ This work significantly improves application AAIBs through structural optimization studies provides systematic scientific guidance materials.

Language: Английский

Citations

0