Synthesis of manganese oxide microparticles using supercritical water
| Autor: | Min Soo Kim, Sun Choi, Keun Hwa Chae, Youhwan Shin, Naechul Shin, Seung-Ah Hong, Hong-shik Lee |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Supercritical water oxidation
Materials science Reducing agent Scanning electron microscope General Chemical Engineering Inorganic chemistry chemistry.chemical_element 02 engineering and technology Manganese 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Supercritical fluid 0104 chemical sciences law.invention chemistry.chemical_compound Chemical engineering chemistry law Glycerol Hydrothermal synthesis Calcination Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | The Journal of Supercritical Fluids. 112:114-118 |
| ISSN: | 0896-8446 |
| DOI: | 10.1016/j.supflu.2016.03.004 |
| Popis: | Manganese compounds of different oxidation states such as MnO2, MnCO3 Mn2O3, and a mixture of MnO + Mn3O4 were synthesized using supercritical water (SCW) and calcination process. The X-ray Diffraction (XRD) patterns confirmed that the use of glycerol as a reducing agent in SCW process was successful in preventing oxidation of manganese products. Scanning electron microscopy (SEM) images of the manganese products showed micro-sized particles with different morphology depending on the product. The simple two step synthesis procedure described in this paper allows easy control of manganese oxidation states with direct applicability in large scale production on an industrial level. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect