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Estudio de los procesos de intercalación en materiales electrómicos (a-WO3, polímeros conductores y viológenos)

  • Autores: Jorge García Cañadas
  • Directores de la Tesis: Germà García Belmonte (dir. tes.)
  • Lectura: En la Universitat Jaume I ( España ) en 2006
  • Idioma: español
  • ISBN: 84-690-3138-4
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  • Resumen
    • This thesis presents thermodynamic studies performed by electrochemical methods (cyclic voltammetry, electrochemical impedance and chronopotenciometry) in three of the most important electrochromic materials: a-WO3, conducting polymers and viologens. Electrochromic materials are very promising as a low-consuming technology. By incorporating these materials in windows of buildings or vehicles, approximately a 30% of the consumed energy in these systems can be saved.

      Regarding the a-WO3, apart from other contributions, a new model based on lattice distortions, able to explain the intercalation thermodynamic in this material, is proposed. In the conducting polymers field, a Gaussian energy distribution is proved to account for the initial part of the so broad oxidation peaks observed in cyclic voltammetry. Finally, the coloration kinetics of the viologen modified n-TiO2 electrode is explained.


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