Quad-metallic MOF-derived carbon-armored pseudo-high entropy alloys as a bifunctional electrocatalyst for alkaline water electrolysis at high current densities

Abstract

A quad-metallic pseudo-HEA catalyst, FeCoNiMo@C, was developed for water electrolysis, exhibiting outstanding bifunctional catalytic efficiency and stability, 500 mA cm−2@1.725 V and a 3.4% decay after a 50 h operation at 500 mA cm−2.

Prominent development of Ni-based oxygen-evolving electrocatalysts for water splitting

“…Moreover, HECs are a type of catalyst materials composed of four or more metals and have a high degree of configurational entropy. 163–180 Herein, the recent progress on trimetallic Ni-based catalysts of FeCoNi, NiFeBa, NiFeW, and NiFeMo and HECs for OER is mainly reviewed.…”