Researchers are exploring the development of nanocomposite materials for hydrogen generation from wastewater. Various studies have investigated the use of different materials, including poly(m-toluidine)/rolled graphene oxide, silver and silver oxide nanocomposites, and other combinations, as electrodes for energy-related applications. The properties and potential uses of these materials, such as photocatalytic properties and electrocatalytic activity, are being examined in different contexts, including supercapacitor devices and water splitting reactions.