Carbon-Coated Ni₃Se₄/MoSe₂/rGO Nanosheet Composites for Lithium-Ion Batteries

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(20), P. 23443 - 23453

Published: Oct. 8, 2024

A composite electrode material was successfully fabricated by a well-designed hydrothermal method supplemented with selenium powder-promoted high-temperature calcined selenization technique, which features Ni3Se4/MoSe2 nanoparticles as charcoal-layer-coated attached and grown on three-dimensional reduced graphene oxide network structure (NMSeCG). The preparation approach ensures the structural stability of composites while bringing into full play synergistic effect among components. results indicate that plentiful diverse heterogeneous interfaces oxide, carbon-layer, Ni3Se4, MoSe2 have potential to enhance active sites effectively regulate electronic structure, resulting in electrochemical reaction kinetics accelerated significantly. anode for lithium-ion batteries such NMSeCG demonstrates exceptional performance lithium storage. Specifically, at 50 mA g–1 current density, initial discharge capacity reaches 822.5 h value, even though density is 40 times increased, it maintains 428.6 capacity. Moreover, after 200 cycles applied 0.5 g–1, cycling remains 106.2%, high value. This study presents practical selenium-based heterostructure materials developed remarkable activity contributes significantly development domain.

Language: Английский

Ultra-small CoxSy nanoparticles adhered to 3D-reduced graphene oxide as attractive anodes for lithium-ion batteries

Synthetic Metals, Journal Year: 2024, Volume and Issue: 311, P. 117813 - 117813

Published: Dec. 3, 2024

Language: Английский