Bimetallic FeSe2/CoSe2 heterojunction nanoparticles anchored on porous N-doped carbon nanosheets for high-rate sodium-ion storage

Abstract

Metal selenide-based anodes show promise, but face challenges like poor conductivity, structural devastation, and slow ion transport, leading to performance loss. This work proposes a heterointerface among FeSe₂, CoSe₂, and N-doped carbon structures to enhance their stability and electrochemical performance, offering insights for designing durable, high-performance sodium-ion battery materials.