Precise solid-phase synthesis of CoFe@FeO_x nanoparticles for efficient polysulfide regulation in lithium/sodium-sulfur batteries.

ABSTRACT: Complex metal nanoparticles distributed uniformly on supports demonstrate distinctive physicochemical properties and thus attract a wide attention for applications. The commonly used wet chemistry methods display limitations to achieve the nanoparticle structure design and uniform dispersion simultaneously. Solid-phase synthesis serves as an interesting strategy which can achieve the fabrication of complex metal nanoparticles on supports. Herein, the solid-phase synthesis strategy is developed to precisely synthesize uniformly distributed CoFe@FeO_x core@shell nanoparticles. Fe atoms are preferentially exsolved from CoFe alloy bulk to the surface and then be carburized into a Fe_xC shell under thermal syngas atmosphere, subsequently the formed Fe_xC shell is p

SUBMITTER: Chen Y 

PROVIDER: S-EPMC10657440 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature