Continuous hydrothermal synthesis of HT-LiCoO2 in supercritical water
- Continuous hydrothermal synthesis of HT-LiCoO2 in supercritical water
- 신영호; 구승모; 김대성; 이영호; Bambang Veriansyah; 김재훈; 이윤우
- supercritical water; lithium cobalt oxide; Continuous hydrothermal synthesis; LiCoO2; CoO; Co3O4
- Issue Date
- The Journal of supercritical fluids
- VOL 50, NO 3, 250-256
- A detailed investigation was made into the production of high temperature lithium cobalt oxide (HT-LiCoO2) particles by continuous hydrothermal synthesis via the reaction of cobalt nitrate, lithium hydroxide, and hydrogen peroxide. The experiments were carried out in both subcritical and supercritical water, at temperatures ranging from 300 to 411 °C, with residence times less than 1 min in all instances. Although Co3O4 particles were synthesized in subcritical water at similar reaction conditions designed for comparison, well-ordered particles of HT-LiCoO2 were obtained in supercritical water. In supercritical conditions, the variations in temperature and residence time did not have significant impacts on the average particle size, particle size distribution, or morphology of obtained HT-LiCoO2. However, it was important to supply excessive lithium hydroxide and hydrogen peroxide in order to synthesize single-phased HT-LiCoO2 particles without undesired by-products. The hydrothermal synthetic route for LiCoO2, CoO, and Co3O4 in both subcritical and supercritical conditions was postulated.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.