Chandrakala C.,Loyola Institute of Frontier Energy LIFE Loyola College |
Sravanthi P.,Loyola Institute of Frontier Energy LIFE Loyola College |
Nagaraja K.S.,Loyola Institute of Frontier Energy LIFE Loyola College |
Jeyaraj B.,Loyola Institute of Frontier Energy LIFE Loyola College
International Journal of ChemTech Research | Year: 2014
Al(acac)3, Cr(acac)3 and Fe(acac)3 (acac = acetylacetonate) were prepared and found to be volatile by thermal analysis that can be used for the metal oxide deposition on silica substrate by Thermal Chemical Vapour Deposition (TCVD). The aim is to deposit eutectic bimetallic and tri-metallic oxides by TCVD method. Different mole ratios of the above mentioned metal complexes were found to reduce the melting points from which binary and ternary phase diagrams of Al(acac)3-Cr(acac), Cr(acac)3-Fe(acac)3, Al(acac)3- Fe(acac)3 and Al(acac)3-Cr(acac)3-Fe (acac)3 were constructed and their eutectic temperatures were determined. The eutectic temperature was obtained at 1: 1 ratio for its binary systems. From the binary phase diagram, ternary phase diagram was constructed. The parent complexes and eutectic complexes were characterized by FT-IR, UV-VIS, XRD, TG/DTA and SEM/EDAX analyses. These binary and ternary eutectics were used for the deposition of the metal oxide thin films over silica by TCVD method. Al2O3 coating over silica catalyses the coating of Cr2O3 or Fe2O3. Bimetallic and tri-metallic oxide thin films can be employed as catalyst for the formation of carbon nanotubes (CNT) by CVD and catalysts. © 2015, International Journal of ChemTech Research. All Rights Reserved.