In the recent years, rare earth metal (REM) sulfide thin film materials have great attentions due to their unique physical and chemical properties. The porous nanostructured morphology and wide potential window of electrode materials are very important aspects for supercapacitor applications. Therefore, REM sulfides are widely used for gas sensing, photocatalyst, glucose sensing, energy conversion and supercapacitor applications. Among the REM sulfide, ytterbium sulfide (Yb2S3) composite with graphene oxide (GO) is considered as a best candidate for negative electrode material in...

Hydrogen fuel is considered an ideal alternative to fossil fuels due to its high energy output and carbon-free combustion. The electrochemical water splitting technique of hydrogen production is the most feasible due to its clean fuel production and integrative compatibility with intermittent energy sources. Even though electrochemical water splitting is known since the 19th century, its practical applications are limited due to the anodic oxygen evolution reaction (OER). OER is a sluggish and complicated half-cell reaction of water splitting and hence it demands high overpotential....