Effect of Concentration on Dielectric Properties of Co-Cu Ferrite Nano Particles

Synthesis of graphene oxide supported copper–cobalt ferrite material functionalized by arginine amino acid as a new high–performance catalyst

“…The completely oxidation of the parent graphite to graphene oxide nanosheets is confirmed by the disappearance of the graphite peak at 26.7° in the XRD pattern of GO. The diffraction characteristic peaks related to the Cu 0.5 Co 0.5 Fe 2 O 4 is observable at 2θ = 30.3°, 32.6°, 35.6°, 43.3°, 57.3°, and 62.8° which corroborate to the reported ones in the literature and confirm the successful preparation of the Cu 0.5 Co 0.5 Fe 2 O 4 @Arg–GO catalytic system.…”

“…In the IR spectrum of Arg–GO, the new bands appeared at 1624 cm −1 and 1408 cm −1 corresponds to the –C = N and –C–N stretches, respectively, due to the chemical attachment of arginine to the GO . The characteristic bands at 621 cm −1 and 428 cm −1 (attributed to stretching vibrations of tetrahedral and octahedral complexes, respectively) in the Cu 0.5 Co 0.5 Fe 2 O 4 @Arg–GO nanocomposite also is appeared due to the metal − O stretching vibrations …”

Structural characterization and magnetic properties of undoped and copper-doped cobalt ferrite nanoparticles prepared by the octanoate coprecipitation route at very low dopant concentrations

“…[1][2][3][4] This is more so given the fact that ferrites have several technological applications such as in high density magnetic storage, sensors, biomedical drug delivery, broadband transformers, computer circuitry, carrier telephony and highly efficient catalysts. [5][6][7][8][9][10][11] Most of these applications depend on the magnetic properties of these materials which could be ascribed to a complex interplay of several factors where cationic distribution and spin canting are fundamental and predominant. 12 The general formula for spinel ferrites is MFe 2 O 4 , where M is a divalent metal ion and Fe is present in the +3 oxidation state.…”

Cobalt‐Copper Ferrite Nanoparticles Catalyzed Click Reaction at Room‐Temperature: Green Access to 1,2,3‐Triazole Derivatives

“…Nowadays, magnetic metal oxide nanoparticles with spinel structure have attracted a lot of attention due to introducing unique properties such as being affordable and easily separable from the reaction mixture which make them a suitable choice for pharmaceutical applications since there is no metal contamination of products observed. Among various spinel ferrites which have been reported yet, preparation and properties of cobalt‐copper ferrites have been done by many researchers ,. Copper and cobalt ions are distributed in octahedral sites of spinel structure which are responsible for the catalytic activity of nano‐ferrite structure.…”