Eutectic Synthesis of High‐Entropy Metal Phosphides for Electrocatalytic Water Splitting

Abstract High‐entropy materials, a new class of alloys that incorporate five or more principal elements into single‐phase crystal structures, have received considerable interest in materials science and engineering. Considering the tailored composition and disordered configuration, these high‐entropy materials may arouse functional synergism towards electrocatalysis. Here, a new strategy for preparing high‐entropy metal phosphides (HEMPs) was developed by a eutectic solvent method. The as‐prepared HEMP possessed a single metal phosphide phase with up to five homogenously distributed metal components. The versatile application of high‐entropy materials was highlighted by integrating the HEMP catalyst into a two‐electrode configuration for electrocatalytic water splitting.