Abstract
The selective synthesis of spinel-type Co3O4 nanostructure with nanoplates morphology was successfully achieved by solid-state thermal decomposition of the [CoII(NH3)6](C2O4)·4H2O complex at 350°C without employing any solvent, surfactant and complicated equipment. The product was characterized by thermal analysis (TG/DTA), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, UV–visible spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and magnetic measurements. The TEM images show that the product has a plate-like shape with length of 50–200nm and thickness of 10–20nm. FT-IR, XRD, EDX and VSM results suggest the as-prepared Co3O4 nanoplates are pure and single-phase with a weak ferromagnetic behavior. The optical spectrum indicated two direct band gaps at 2.18 and 3.55eV with a blue shift compared with the bulk samples. The plausible pathway for the formation of Co3O4 nanoplates was also proposed. Under the present reaction conditions, the decomposition of other cobaltammine complexes and CoC2O4⋅2H2O led to the Co3O4 nanoparticles and nanorods, respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
