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Comparison of the electrochemical behavior of CeO2–SnO2 and CeO2–TiO2 electrodes produced by the Pechini method |
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| Authors: | Adriane V Rosario Ernesto C Pereira |
| Affiliation: | Centro Multidisciplinar para o Desenvolvimento de Materiais Cerâmicos, Laboratório Interdisciplinar de Eletroquímica e Cerâmica, Departamento de Química, Universidade Federal de São Carlos, C.P.: 676, 13560-970 Sao Carlos, SP, Brazil |
| Abstract: | CeO2–SnO2 and CeO2–TiO2 thin films were prepared by the Pechini method and their characteristics were compared, using a fractional factorial design to quantify the effect of five preparation variables. It was observed that CeO2–SnO2 electrodes show a greater electrochemical response than the CeO2–TiO2 films. The best intercalation charge densities were 18.11 and 9.91 mC/cm2 for CeO2–SnO2 and CeO2–TiO2, respectively. Both films were optically inactive with transparencies, in most cases, higher than 90%. |
| Keywords: | Electrochromism CeO2–TiO2 CeO2–SnO2 Pechini method Factorial design |
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