Ultralong 2H‐MoS2 Nanowires from Topological Mo2S3 Phase Transformation toward Exceptional Sodium‐Ion Storage DOI
Yiyang Wang, Y. Fang, Ying Chen

et al.

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

Published: April 3, 2025

1D transition metal dichalcogenide (TMD) nanowires (NWs) have attracted attention to act as energy storage and information technology materials, but the TMD NWs are unable directly synthesized rather than hexagonal flakes due habit of in-planar isotropic crystal growth. Herein, topological phase transformation is proposed synthesize ultralong high-quality 2H-MoS2 from a surface-to-interior sulfurization isomorphic Mo2S3 NWs. endows structure with [MoS] chains inserted into structure. The harvested MoS2 average in length >150 µm diameter ≈400 nm, electrical conductivity ≈150 S m-1 much higher reported (10-2 m-1). As sodium-ion battery (SIB) anode, exhibit high capacity 705 mAh g-1 at 0.2 A g-1. retention 85.6% achieved after 9500 cycles 5 g-1, superior any TMD-based SIB anodes. Further in-situ characterizations reveal favorable reversible redox chemistry for NWs, excellent cycling stability stems homogeneous surface stress release during sodiation/desodiation. This work provides an effective strategy preparing electrochemical performance.

Language: Английский

Ultralong 2H‐MoS2 Nanowires from Topological Mo2S3 Phase Transformation toward Exceptional Sodium‐Ion Storage DOI
Yiyang Wang, Y. Fang, Ying Chen

et al.

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

Published: April 3, 2025

1D transition metal dichalcogenide (TMD) nanowires (NWs) have attracted attention to act as energy storage and information technology materials, but the TMD NWs are unable directly synthesized rather than hexagonal flakes due habit of in-planar isotropic crystal growth. Herein, topological phase transformation is proposed synthesize ultralong high-quality 2H-MoS2 from a surface-to-interior sulfurization isomorphic Mo2S3 NWs. endows structure with [MoS] chains inserted into structure. The harvested MoS2 average in length >150 µm diameter ≈400 nm, electrical conductivity ≈150 S m-1 much higher reported (10-2 m-1). As sodium-ion battery (SIB) anode, exhibit high capacity 705 mAh g-1 at 0.2 A g-1. retention 85.6% achieved after 9500 cycles 5 g-1, superior any TMD-based SIB anodes. Further in-situ characterizations reveal favorable reversible redox chemistry for NWs, excellent cycling stability stems homogeneous surface stress release during sodiation/desodiation. This work provides an effective strategy preparing electrochemical performance.

Language: Английский

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