Microstructure and Surface Morphology of Nanocrystalline Silver Silicates |
| S. Duhan
Materials Science Lab, Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram, University of Science and Technology, Murthal, Sonepat-131039, India |
| Received: May 19, 2011; In final form January 6, 2012 |
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| Microstructure and surface morphology of AgO nanocrystallites (25 nm) supported on SiO2 and subjected to heat treatment in air up to 500°C have been studied by transmission electron microscopy, scanning electron microscopy, and the Fourier transform: infrared spectroscopy measurements. It has been found that heating at 500°C resulted in spreading of AgO over silica and formation of quasi two-dimensional amorphous phase (silicate precursor) exhibiting very weak band at 566 cm-1 have appeared in the Fourier transform infrared spectroscopy. Nanocrystalline silver silicate of undefined structure formed at 300-500°C. |
| DOI: 10.12693/APhysPolA.121.636 PACS numbers: 61.46.Df, 61.46.Hk, 78.67.Bf |