Magnetite nanocrystal clusters transformed from ferric precursor and their colloidal magnetorheology
| Autor: | Kazuo Kuruma, Hiroya Abe, Kazuyoshi Sato, T Murakami, Takashi Naka, Yoshikazu Suzuki, M. Takahashi |
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| Rok vydání: | 2019 |
| Předmět: |
Reducing agent
Potassium chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Solvent Colloid chemistry.chemical_compound chemistry Nanocrystal Chemical engineering medicine Ferric 0210 nano-technology Ethylene glycol Magnetite medicine.drug |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 479:012043 |
| ISSN: | 1757-899X |
| Popis: | Spherical magnetite (Fe3O4) nanocrystal clusters (MNCs) were synthesized via reductive aging of ferric precursor (FeCl36 H2O) in ethylene glycol (EG) in the presence of potassium acetate (KOAc). EG was used both as a reducing agent and a solvent. The as-synthesized MNCs with an average diameter of ~500nm comprised Fe3O4 nanocrystals with almost equal crystallographic orientation. The time-resolved evolution of the iron species was tracked, and the MNC transformation pathway from the ferric precursor in the solution was deduced. Moreover, to examine the feasibility of MNCs for a field-responsive material, magnetorheology was investigated for the MNC-dispersed colloid. |
| Databáze: | OpenAIRE |
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