An Advanced Quaternary Composite for Efficient Water Splitting

Abstract Electrochemical water splitting is a promising pathway for effective hydrogen (H 2 ) evolution in energy conversion and storage, with electrocatalysis playing key role. Developing efficient, cost-effective stable catalysts or electrocatalysts critical from splitting. Herein, we evaluated graphene-modified nanoparticle catalyst reaction (HER). The electrocatalytic H production rate of reduced graphene oxide-titanium oxide-nickel oxide-zinc oxide (rGO–TiO –NiO–ZnO) high exceeds that obtained on components alone. This improvement due to the presence rGO as an electron collector transporter. Moreover, current density 10 mA/cm was recorded at working potential 365 mV nanocomposite. electronic coupling effect between interface causes nanoparticle's catalytic activity. Graphical