Structurally Mutualized Ti3C2@Ni2P Catalysts Realize Interfacial Charge Redistribution for Facilitating Redox Reaction Kinetics in Lithium–Sulfur Batteries DOI
Ran Liu, Zihan Huang, Jinwei Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(19), P. 28267 - 28275

Published: May 6, 2025

The sluggish redox reaction kinetics of polysulfides (LiPSs) seriously hinders the performance lithium-sulfur batteries (LSBs). To effectively accelerate conversion sulfur species, constructing heterostructure catalysts has emerged as a promising strategy. In this research, Ti3C2@Ni2P electrocatalysts heterostructured with mutual structural support were fabricated by straightforward phosphorylation method. synergistic integration Ti3C2 substrate and uniformly distributed Ni2P particles solves component agglomeration stacking, accordingly, exposing more active sites anchoring LiPSs. Moreover, built-in electric field could be formed between heterointerfaces to promote transfer Li+/e-, reducing energy barriers for LiPSs redox. Based on these advantages, LSBs assembled achieve an initial capacity 1180 mAh g-1 at 0.2 C cycling decay rate only 0.031% after 1000 cycles 1 C. Besides, area 4.0 cm-2 was achieved even loading 6.1 mg cm-2.

Language: Английский

Structurally Mutualized Ti3C2@Ni2P Catalysts Realize Interfacial Charge Redistribution for Facilitating Redox Reaction Kinetics in Lithium–Sulfur Batteries DOI
Ran Liu, Zihan Huang, Jinwei Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(19), P. 28267 - 28275

Published: May 6, 2025

The sluggish redox reaction kinetics of polysulfides (LiPSs) seriously hinders the performance lithium-sulfur batteries (LSBs). To effectively accelerate conversion sulfur species, constructing heterostructure catalysts has emerged as a promising strategy. In this research, Ti3C2@Ni2P electrocatalysts heterostructured with mutual structural support were fabricated by straightforward phosphorylation method. synergistic integration Ti3C2 substrate and uniformly distributed Ni2P particles solves component agglomeration stacking, accordingly, exposing more active sites anchoring LiPSs. Moreover, built-in electric field could be formed between heterointerfaces to promote transfer Li+/e-, reducing energy barriers for LiPSs redox. Based on these advantages, LSBs assembled achieve an initial capacity 1180 mAh g-1 at 0.2 C cycling decay rate only 0.031% after 1000 cycles 1 C. Besides, area 4.0 cm-2 was achieved even loading 6.1 mg cm-2.

Language: Английский

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