Seed-like structured Mo@ZrS2 catalyst on graphene nanosheet boosting the rechargeable Zn-air battery performance

Abstract

Novel composite materials are being studied by researchers for energy storage and renewable energy applications. Here, we develop seed-like Mo-doped ZrS2 on a reduced graphene oxide surface for application in annealing and hydrothermal operations. Through the use of photoelectron spectroscopy, scanning microscopy, and X-ray diffraction analysis, the structure of Mo@ZrS2/rGO and the impact of heteroatoms are demonstrated, providing insight into the catalyst. Furthermore, it is demonstrated that Mo@ZrS2/rGO has been utilized as an efficient energy storage electrocatalyst by offering a tiny half wave potential of 0.80 V for the oxygen reduction reaction in alkaline solution. Furthermore, Zn–air batteries with a high-power density of 128.6 mW cm−2 and exceptional cycle stability are demonstrated by the developed arrays electrocatalyst. Ultimately, the research findings suggest novel perspectives on the structure of ZrS2 nano-seeds created by Mo surface doping, promote the usage of Zn-air batteries in practical scenarios, and offer a fascinating idea for creating a redox electrocatalyst.