The MoS 2 @NiFeCo-Mo(doped)-LDH‖MoS 2 @NiFeCo-LDH cell also demonstrates remarkable stability for over 48 h as shown in Figure . There are no significant changes in the potential at a current density of 10 mA cm -2 , which reflects the high stability of the overall cell and both electrodes. Even after prolonged electrocatalysis only negligible changes in the structures and the ratio of elements at the surface were observed through SEM, XRD, and XPS (Figures and and). This high overall water splitting performance positions MoS 2 @NiFeCo-Mo(doped)-LDH and MoS 2 @NiFeCo-LDH as one of the best Ni-, Fe-, and Cobased electrocatalysts for HER, OER, and OWS (see Tables , and S3).