Prussian Blue Analogue-Derived Fe-Doped CoS₂ Nanoparticles Confined in Bayberry-like N-Doped Carbon Spheres as Anodes for Sodium-Ion Batteries.

ABSTRACT: Obvious volume change and the dissolution of polysulfide as well as sluggish kinetics are serious issues for the development of high performance metal sulfide anodes for sodium-ion batteries (SIBs), which usually result in fast capacity fading during continuous sodiation and desodiation processes. In this work, by utilizing a Prussian blue analogue as functional precursors, small Fe-doped CoS₂ nanoparticles spatially confined in N-doped carbon spheres with rich porosity were synthesized through facile successive precipitation, carbonization, and sulfurization processes, leading to the formation of bayberry-like Fe-doped CoS₂/N-doped carbon spheres (Fe-CoS₂/NC). By introducing a suitable amount of FeCl₃ in the starting materials, the optimal Fe-Co

SUBMITTER: Hu J 

PROVIDER: S-EPMC10054790 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature