Fabrication of a novel porous nanostructure based on NiCuFe₂O₄@MCM-48, embedded with graphene oxide/poly (p-phenylenediamine) to construct an efficient supercapacitor

In this study, a new nanocomposite was created by combining copper-doped nickel ferrite (NiCuFe2O4) nanoparticles with MCM-48 (Mobil Composition of Matter No. 48) on a graphene oxide (GO) substrate functionalized with poly(rho-phenylenediamine) abbreviated as (P rho PD). This nanocomposite was developed to investigate its potential for enhancing the function of a supercapacitor in energy storage. Following NiCuFe2O4@MCM-48 preparation, Hummer's technique GO was applied. In-situ polymerization of NiCuFe2O4@MCM-48/GO nanoparticles with rho-phenylenediamine (rho PD) in the presence of ammonium persulfate (APS) produced P rho PD, a conductive polymer. Structural characterization of the nanocomposite includes FTIR, XRD, VSM, TGA-DTG, EDX, and FE-SEM. Results from BET indicate a pore size increase of up to 5 nm. Fast ion penetration and higher storage in capacitor material are explained by this. Additionally, the nanocomposite's electrochemical performance was evaluated using GCD and CV tests. The NiCuFe2O4@MCM-48/GO/P rho PD nanocomposite has a specific capacitance of 203.57 F g(-1) (1 A g(-1)). Furthermore, cyclical stability is essential for energy storage applications. The nanocomposite retains 92.5% of its original capacitance after 3000 cycles, indicating outstanding electrochemical stability.