Biomimetic hierarchical porous high entropy alloy for significantly enhancing overall seawater splitting

Abstract

Herein, a biomimetic hierarchical porous high entropy alloy (BHP-HEA) is prepared by a strategy combining selective laser melting and selective phase dissolution. It exhibited excellent seawater splitting performance, which only needs a low potential of 1.53 V to realize a current density of 100 mA cm⁻², with exceptional stability.