An anode material incorporating a sulfide is reported. SnS nanoparticles anchored onto reduced graphene oxide are produced via a chemical route and demonstrate an impressive capacity of 350 mA h g, exceeding the capacity of graphite. These results open the door for a new class of high capacity anode materials (based on sulfide chemistry) for potassium-ion batteries.

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Sb2S3–rGO potassium-ion battery anode material is synthesised by the peroxide route and is evaluated in two non-aqueous electrolytes.

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