Synthesis and Characterization of Composite MoSe2-MoO2 By Hydrothermal and Their Electrocatalytic Performance for Hydrogen Evolution Reaction

Abstract

For more energy-efficient and economical hydrogen production, highly active noble metal-free hydrogen evolution catalysts are a priority for all. Herein we report a facile hydrothermal synthesis of composite MoSe2-MoO2. The surface morphology and chemical composition of the synthesized materials were investigated by SEM, TEM, Raman spectroscopy, XPS and XRD. After characterizations, the materials were directly used as an electrode to evaluate their HER performance. A comparison between pure MoSe2, pure MoO2 and MoSe2-MoO2 nanosphere shows that the porous MoSe2-MoO2 nanosphere exhibits higher catalytic activity for electrocatalytic hydrogen evolution reaction (HER)(figure 1). Based on our data, it can be concluded that the porous structure material could improve the surface active area which yields higher HER catalytic activity. The present study provides a simple and effective way for the exploration of efficient Mo-based HER catalysts. Figure 1