Authors: A. López-Trosell and R. Schomäcker
Affilation: TU Berlin, Germany
Pages: 313 - 316
Keywords: films, microemulsions
In this paper a developed methodology is presented to coat glass substrates with nanoparticles of different materials. Particles of palladium, zirconium oxide, yttrium iron garned and perovskite Ca0.5Sr0.5MnO3 were synthesized in microemulsions. The microemulsions form spontaneously and present behavior that changes systematically with temperature. These properties of the microemulsions represent a suitable medium for the deposition of the particles on the cleaned surfaces. The laboratory-scale method involved three basic steps: surface cleaning, synthesis of the nanoparticles and low-temperature heat treatment for drying and pyrolysis of the surfactant normally between (200-400°C). A fourth step was necessary for those materials that required a higher temperature for crystallization of the coating onto the desired phase. The surfaces were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM).