posted on 2024-02-24, 16:04authored byTrishanku Kashyap, Rajashree Bortamuly, Liju Elias, Manash R. Das, Debajyoti Mahanta, Pranjal Saikia
Electrochemical
energy technologies play a pivotal role in the
quest for a sustainable and cleaner future owing to their remarkable
potential to revolutionize the way we generate, store, and utilize
energy. In this context, the present study explores the synthesis
and characterization of TiO2–CeO2 composites
having surface-dispersed silver nanoparticles (TiO2–CeO2/Ag) as an efficient electrode material for supercapacitor
application. The developed electrode materials are systematically
characterized by using different techniques such as Fourier-transform
infrared spectroscopy, scanning electron microscopy, X-ray diffraction,
and X-ray photoelectron spectroscopy. The electrochemical performance
of the electrode materials is assessed by using cyclic voltammetry,
galvanometric charge–discharge, and electrochemical impedance
spectroscopy. The obtained results show that the electrode material
with 2 wt % Ag distributed over TiO2–CeO2 composites (TiO2–CeO2/Ag 2X) is the
best material with the highest specific capacitance of 996 F/g and
excellent cycling stability even after 2500 cycles. The obtained results
give clear credence to the idea that the TiO2–CeO2/Ag composites could serve as an efficient electrode material
for energy storage applications.