Suppiah, Durga Devi and Julkapli, Nurhidayatullaili Muhd and Johan, Mohd Rafie (2022) Correlation on precipitation parameters towards ferromagnetism and stabilization of the magnetite nanoparticles. Journal of Solid State Chemistry, 315. ISSN 0022-4596, DOI https://doi.org/10.1016/j.jssc.2022.123459.
Full text not available from this repository.Abstract
The conventional synthesis methods of magnetite nanoparticles by hydrothermal required high temperature and aging process, which results in an unstable magnetite phase. In this work, the focus is on producing magnetite nanoparticles by simple and sustainable titration methods with the variable in parameters on the precipitate growth rate and structure of iron oxide nanoparticles utilizing a single sulphate precursor. Iron salt precursor hydrolysis was faster at temperatures of 30 degrees C and 45 degrees C; hence the number of hydroxyl ions (OH ) needed to reach the equivalence point for the precipitate to form is lower, creating the highest percentage of magnetite nanoparticles. However, at 45 degrees C, larger magnetite nanoparticles were obtained hence higher magnetization through lower coercivity. Precipitating agent rate of addition increase leads to reaction sequence delay, favoring goethite nanoparticle formation and lower magnetization. The novel understanding of precipitation parameter synergistic effect has resulted in promising ferromagnetic and stabilization properties of magnetite nanoparticle synthesis.
| Item Type: | Article |
|---|---|
| Funders: | [RU 2021-001] |
| Uncontrolled Keywords: | Iron oxide; Nanoparticles; Precipitation; Ferromagnetic; Characterization |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 20 Sep 2023 03:14 |
| Last Modified: | 20 Sep 2023 03:14 |
| URI: | http://eprints.um.edu.my/id/eprint/41356 |
Actions (login required)
 |
View Item |
