چكيده به لاتين
In this research, at first, the reverse spinel CuFe2O4 nanoparticles were prepared using highly yield, simple, rapid and low cost combustion method assisted by microwave irradiation in solid state. In addition, (NH4)3PMo12O40 keggin polyoxometalate nanoparticles were obtained by a fast, high-yeild co-precipitation raction under microwave irradiation method. Aminopropyl triethoxisilan (EO
S) was used as linker agent to prepare CuFe2O4/EOS/(NH4)3PMo12O40 (CuFe/EOS/NHPMo12) nanocomposite by microwave assisted mthod with 360 W for 20 mi. The structural and morphological studies of the synthesized produects were carrid out in details using FTIR (Fourier Transform Infrared Spectroscopy), XRD (X Ray Diffraction), SEM (Scanning electron microscope), TEM (Transmission electron microscopy), EDX (Energy Dispersive X ray), and VSM (Vibrating Sample Manetometer). The results showed a particulate morphology with uniform distribution with an average particle size of 80-40 nm without any impurities. Pseudo-superconductive behavior of the products was researched by electrochemical cyclic voltammetry (CV), linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) tests in H2SO4 medium (0.5 M) at the different scan rate (0.05, 0.01, 0.1, 0.5 Vs-1). The recorded oxidation-reduction CV curves revealed a high quasi-capacitance with a specific capacitance of around 1300 F.g-1 and a good cyclic life for a CuFe/EOS/NHPMo12 nanocomposite. As a result, the obtained data can suggest this prouduct as a pseudosupercapacitive electrode material for energy storage applications. As a next step of this project, we investigated catalytic properties of the prepared nanocomposite for C-C coupling Suzuki reaction by decoration of Pd nanoparticles on the CuFe/EOS/NHPMo12 nanocomposite. The results were collected and discucced in detial, which indicated the high catalytic performance of this product with a high efficiency up to 98.5%.
