Spherical Ni₃ S₂ /Fe-NiP_x Magic Cube with Ultrahigh Water/Seawater Oxidation Efficiency.

ABSTRACT: The rational construction of earth-abundant and advanced electrocatalysts for oxygen evolution reaction (OER) is extremely desired and significant to seawater electrolysis. Herein, by directly etching Ni₃ S₂ nanosheets through potassium ferricyanide, a novel self-sacrificing template strategy is proposed to realize the in situ growth of NiFe-based Prussian blue analogs (NiFe PBA) on Ni₃ S₂ in an interfacial redox reaction. The well-designed Ni₃ S₂ @NiFe PBA composite as precursor displays a unique spherical magic cube architecture composed of nanocubes, which even maintains after a phosphating treatment to obtain the derived Ni₃ S₂ /Fe-NiP_x on nickel foam. Specifically, in alkaline seawater,

SUBMITTER: Luo X 

PROVIDER: S-EPMC8895145 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature