Chitosan templated synthesis of strontium–iron–oxygen nanocrystalline system
| Autor: | Andrea Mónaco, Giojanny Lovera, Verónica González, Edgar Cañizales, Raquel del Toro, Liz Cubillán, Joaquín L Brito, Ángela B. Sifontes, Edward E. Ávila |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Strontium
Materials science Process Chemistry and Technology Nanoparticle chemistry.chemical_element Mineralogy Nanocrystalline material Surfaces Coatings and Films Electronic Optical and Magnetic Materials Chitosan chemistry.chemical_compound Chemical engineering chemistry Agglomerate Materials Chemistry Ceramics and Composites Crystallite Fourier transform infrared spectroscopy High-resolution transmission electron microscopy |
| Zdroj: | Ceramics International. 41:13250-13256 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2015.07.104 |
| Popis: | A mixture of ferrites phases containing strontium ortho/hexagonal ferrites was synthesized using chitosan as template and heat treatments. The analysis by XRD, FTIR, SEM, TEM and HRTEM showed the coexistence of the perovskite-like SrFeO 2.9 and hexaferrite SrFe 12 O 19 phases. The ferrites consisted of hard agglomerates containing nanoparticles. The crystallites sizes range between 5 and 20 nm of different morphologies. A possible phase transition model is suggested. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect