Ternary nanocomposites of Ce2W2O9/CoWO4/porous carbon; design, structural study and electrochemical hydrogen storage application

چکیده مقاله

The nanocomposites for hydrogen storage application were designed using three components of Ce₂W₂O₉, CoWO₄ and porous carbon. The sonochemical method were used for preparation of binary Ce₂W₂O₉/CoWO₄ nanocomposites (NCs) in the presence of PEG/tween as emulsion phase and capping agent. The porous carbon (PC) component derived from natural source of Oleaster powder and synthesized by biomass method. Designed ternary nanocomposites of Ce₂W₂O₉/CoWO₄/PC applied as electrode material in the cell of hydrogen storage system. Two parameters of current density and dosage of PC studied in terms of effect on the hydrogen storage capacity. Electrochemical properties of Ce₂W₂O₉/CoWO₄/PC nanocomposites were explored by CV and charge–discharge chronopotentiometry techniques. The discharge capacity for Ce₂W₂O₉/CoWO₄/PC nanocomposites by 70% of PC component …