Precipitation method and characterization of cobalt oxide nanoparticles

Coating activated carbon from coconut shells with Co3O4/CeO2 for high-performance supercapacitor applications: An experimental study

“…The bridging vibration of O-Co-O bond was indicated clearly at around 662 cm −1 in both cases of adding Co3O4. The CeO2 stretching vibration in the structure and Ce-O bending vibration were represented in the same wavelength range of around 570 cm −1 (Prabaharan et al 2017: Jayakumar et al 2019.…”

Low-temperature synthesis of core/shell of Co3O4@ZnO nanoparticle characterization and dielectric properties

“…The dielectric constant (ε′) and the tan δ values of investigated CZ core/shell NPs at 1 kHz are 7.8 and 1.77, respectively. It was also observed that the dielectric constant (ε′) of CZ core/shell NPs at 1 kHz under room temperature is less than the values of ZnO (40 nm) [25] and higher than ε′ value of Co 3 O 4 (36 nm) [26] that measured in the previous studies where the ε′ value were about 40 and 7 for ZnO and Co 3 O 4 at 1 kHz under room temperature, respectively.…”

Novel prism shaped C3N4-doped Fe@Co3O4 nanocomposites and their dye degradation and bactericidal potential with molecular docking study

“…The peaks attributed to 546 cm À1 and 645 cm À1 depict the stretching of Co-O bond and bridging vibration of O-Co-O bond, respectively. [53][54][55] Broad bands near 3412 cm À1 and 1420 cm À1 refer to the stretching and bending vibrations of -OH group respectively, which originate from the moist environment in which samples were prepared. Bands appearing near 1428 cm À1 are ascribed to CO 3 vibration in carbonate anions that might have originated due to the precursors used during synthesis (Co(CH 3 CO 3 O 4 ) 2 $4H 2 O).…”