Enhancing the coupling effect in a sandwiched FeNiPS 3 /graphite catalyst derived from graphite intercalation compounds for efficient oxygen evolution reaction

The FeNiPS 3 /GL sandwich-structure prepared via in situ transforming FeCl 3 -NiCl 2 -GIC exhibits excellent catalytic OER performance, which results from the coupling effect between FeNiPS 3 and graphite layers facilitating electron transfer.