Synthesis and characterization of new Ce doped‐semiconductor nanocomposite with high specific capacitance

Abstract

In this study, we introduce an effective strategy to prepare electrodes containing new nanocomposites with high specific capacity. This research led to the preparation of CoFe2‐xCexO4/rGO‐Pani nanocomposite with an extraordinary specific capacitance of 3257.83 F·g−1 (at 10 mV·s−1), a power density of 349.951 W/kg, and an energy density of 3.52 Wh/kg. Also, electrical conductivity studies for new nanocomposite showed good electrical conductivity and better semiconducting properties compared with its similar compounds. Also, the synthesized compounds were characterized and identified by other analyses. FT‐IR analysis for reduced graphene oxide showed that graphene oxide was well reduced. It also confirmed the presence of Ce‐O for both CoFe2‐xCexO4/rGO‐Pani and CoFe2O4‐CeO2/rGO‐Pani magnetic nanocomposites. XRD analysis confirmed the crystal structure for rGO, CoFe2‐xCexO4/rGO‐Pani, and CoFe2O4‐CeO2/rGO‐Pani. VSM analysis was done to check the magnetic properties of the nanocomposite, and the magnetic values were measured as expected. In the following, morphological studies and the uniformity of distribution of elements in magnetic nanocomposite were carried out with FE‐SEM and Map, respectively.