Kinetic Study of the Thermal Dehydration of SiO2 and SiO2‐ZrO2 Composites Prepared by Sol–Gel Route
Ignazio BlancoMichelina CatauroGianluca CicalaGiovanni Dal PoggettoClaudio Tosto
Abstract
Abstract SiO 2 , ZrO 2 , and SiO 2 ‐ZrO 2 composites at different percentages of zirconia are synthesized by the sol–gel method and thermally characterized by thermogravimetric analysis (TGA) to investigate the kinetics of the dehydration process. The synthesized samples are subjected to TGA and the obtained data are treated by the Kissinger method to calculate the apparent activation energy ( E a ) of dehydration. The obtained kinetic parameters are discussed and compared each other and with those obtained for the pristine silica.
Metrics
Citation History
Topics
Related Documents
Mixed oxides SiO2–ZrO2and SiO2–TiO2by a non-hydrolytic sol–gel route
Andrianainarivelo MahandrimananaRobert J. P. CorriuDominique LeclercqP. Hubert MutinAndré Vioux
Sol-gel synthesis of ternary phosphate-ZrO2-SiO2 catalysts for alcohol dehydration
One-pot sol-gel synthesis of sulfated ZrO2-SiO2 catalysts for alcohol dehydration
Dehydration of Gels and Glasses in the Systems B 2 O 3 ‐SiO 2 and ZrO 2 ‐SiO 2 Prepared by the Sol‐Gel Process from Metal Alkoxides
PolySi-SiO[sub 2]-ZrO[sub 2]-SiO[sub 2]-Si Flash Memory Incorporating a Sol-Gel-Derived ZrO[sub 2] Charge Trapping Layer
Tzu-Hsiang HsuHsin-Chiang YouFu‐Hsiang KoTan‐Fu Lei