Surface modification of elongated one-dimensional titanium dioxide structures with ferromagnetic nanoparticles
| Autor: | I. Yu. Prosanov, T. M. Zima |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Ferromagnetic material properties Scanning electron microscope General Chemical Engineering Metals and Alloys Infrared spectroscopy Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Inorganic Chemistry chemistry.chemical_compound chemistry Chemical engineering Transmission electron microscopy law Titanium dioxide Materials Chemistry Surface modification Thermal stability Calcination 0210 nano-technology |
| Zdroj: | Inorganic Materials. 52:1160-1165 |
| ISSN: | 1608-3172 0020-1685 |
| DOI: | 10.1134/s0020168516100198 |
| Popis: | Nanostructured TiO2 in the form of elongated one-dimensional structures having a highly ordered layered morphology, with cobalt-containing agglomerates on their surface, has been prepared by hydrothermal treatment of CoTiO3 powder in the presence of chitosan, a bioactive natural polymer. The synthesis products have been characterized by scanning electron microscopy, transmission electron microscopy, IR spectroscopy, X-ray diffraction, elemental analysis, and magnetic measurements. The structures have been shown to be up to several microns in length, and their typical width ranges from 100 to 400 nm. The one-dimensional structures retain high thermal stability at calcination temperatures of up to 800°C. After vacuum heat treatment at 600°C and above, the nanostructured material possesses anomalously high ferromagnetic characteristics. |
| Databáze: | OpenAIRE |
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