Abstract:Herein, we successfully synthesized C@MoSe2(1-x)S2x@MWCNT nanocomposite with heterojunctions as long-term stability anodes for sodium ion batteries (SIB). According to DFT calculations, the barrier of Na+ migration between MoSe2(1-x)S2x interlayers and that between GR@MoSe2(1-x)S2x@SWWCNT interlayers is 0.48 eV and 0.45 eV, respectively, significantly lower than that between MoSe2 interlayers (0.91 eV). Therefore, the introduction of S can enhance Na+ transport. The Se element can provide a larger interlayer s… Show more
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