Synthesis of Distinct Iron Oxide Nanomaterial Shapes Using Lyotropic Liquid Crystal Solvents
| Autor: | Donald W. Miller, Seyyed Muhammad Salili, Matthew Worden, Torsten Hegmann, Ahlam Nemati |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
magnetic nanoparticles
Materials science nanosheets General Chemical Engineering Inorganic chemistry Iron oxide Ionic bonding 02 engineering and technology 010402 general chemistry 01 natural sciences Article Nanomaterials lcsh:Chemistry chemistry.chemical_compound Transition metal nanodiscs General Materials Science Lamellar structure lyotropic liquid crystals nanoflakes iron oxide nanoparticles 021001 nanoscience & nanotechnology template syntheses 0104 chemical sciences chemistry Chemical engineering lcsh:QD1-999 Lyotropic liquid crystal Magnetic nanoparticles 0210 nano-technology Iron oxide nanoparticles |
| Zdroj: | Nanomaterials, Vol 7, Iss 8, p 211 (2017) Nanomaterials; Volume 7; Issue 8; Pages: 211 Nanomaterials |
| ISSN: | 2079-4991 |
| Popis: | A room temperature reduction-hydrolysis of Fe(III) precursors such as FeCl3 or Fe(acac)3 in various lyotropic liquid crystal phases (lamellar, hexagonal columnar, or micellar) formed by a range of ionic or neutral surfactants in H2O is shown to be an effective and mild approach for the preparation of iron oxide (IO) nanomaterials with several morphologies (shapes and dimensions), such as extended thin nanosheets with lateral dimensions of several hundred nanometers as well as smaller nanoflakes and nanodiscs in the tens of nanometers size regime. We will discuss the role of the used surfactants and lyotropic liquid crystal phases as well as the shape and size differences depending upon when and how the resulting nanomaterials were isolated from the reaction mixture. The presented synthetic methodology using lyotropic liquid crystal solvents should be widely applicable to several other transition metal oxides for which the described reduction-hydrolysis reaction sequence is a suitable pathway to obtain nanoscale particles. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|