Measurement and Characterization of CeO2-TiO2 Ion Storage Films for Electrochromic Devices

Wei Shan Wu; Xiao Ping Liang; Jun Wang; Peng Chen; Wei Zhang; Kai Zhong; Wei Jian Sun; Xiao Wei Fan; Jian Xin Li

doi:10.4028/www.scientific.net/KEM.726.276

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 726Measurement and Characterization of CeO2-TiO2 Ion...

Measurement and Characterization of CeO₂-TiO₂ Ion Storage Films for Electrochromic Devices

Abstract:

CeO₂-TiO₂ sols and films were prepared by sol-gel method. The precursor sols consist of a mixture of cerium nitrate hexahydrate Ce(NO₃)₃·6H₂O, butyl titanate Ti(OC₄H₉)₄ and anhydrous ethanol CH₃CH₂OH. The films were deposited using the dip-coating technique and calcined at 310 °C in an oxygen atmosphere. The effects of the molar ratios of cerium to titanium（0.55:1, 0.70:1, 0.85:1, 1:1）on the microstructure and properties of (CeO₂)_x-TiO₂ films were investigated. The surface morphology, electrochemical performance and optical property were characterized by FE-SEM, cyclic voltammetry (CV) and UV-Visible spectrometer, respectively. The results show that the properties of the films are tightly related to cerium to titanium ratio. When the molar ratio of cerium to titaniumis 0.85:1, the ion storage capacity value of CeO₂-TiO₂ film is 19.99mC/cm², whereas the pure TiO₂ film is 11.52mC/cm². The stability tests and optical measurements confirm that the developed CeO₂-TiO₂ films can be use as ion storage-counter eletrodes in electrochromic devices.

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Key Engineering Materials (Volume 726)

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276-281

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https://doi.org/10.4028/www.scientific.net/KEM.726.276

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Online since:

January 2017

Authors:

Wei Shan Wu, Xiao Ping Liang*, Jun Wang, Peng Chen, Wei Zhang, Kai Zhong, Wei Jian Sun, Xiao Wei Fan, Jian Xin Li

Keywords:

CeO₂-TiO₂, Electrochromic Device, Ion Storage Film, Sol-Gel

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