Preparation of Co3O4 Nanostructures via a Hydrothermal- Assisted Thermal Treatment Method by Using of New Precursors
| Autor: | Sousan Gholamrezaei, Hassan Hadadzadeh, Mohammad Taghi Behnamfar, Masoud Salavati-Niasari |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Technology
Nanostructure Materials science Chemicals: Manufacture use etc 02 engineering and technology Thermal treatment TP1-1185 010402 general chemistry 01 natural sciences Hydrothermal circulation law.invention law nanostructures co3o4 General Materials Science Physical and Theoretical Chemistry electron microscopy Chemical technology TP200-248 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Chemical engineering Mechanics of Materials hydrothermal method Electron microscope 0210 nano-technology complex |
| Zdroj: | High Temperature Materials and Processes, Vol 36, Iss 2, Pp 107-112 (2017) |
| ISSN: | 2191-0324 0334-6455 |
| Popis: | Co3O4 nanostructures have been synthesized via a hydrothermal-assisted thermal treatment process. A new complex formulated as [Co(py)2(H2O)2(NO3)2] was synthesized, and then used to prepare Co3O4 nanostructures. Cubic phase of spinel Co3O4 nanostructures with particle size of about 39 nm could be produced after calcination of the Co(OH)2 materials prepared with hydrothermal method at 160 °C for 15 h. Using of inorganic precursors decreased the time and temperature of Co3O4 preparation. The effect of pH on the morphology of the product s synthesized by hydrothermal reactions was investigated. It was found that the best morphology was achieved on pH=8, where was not prepared any precipitation. In this method, we could decrease the reaction temperature in synthetic rout to fabricate Co3O4 nanostructures. Nanostructures were characterized by SEM, TEM, X-ray diffraction (XRD), UV–visible, Fourier transformed infrared (FT-IR) spectroscopy and Nuclear magnetic resonance (1H-NMR). |
| Databáze: | OpenAIRE |
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