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Preparation of ceria films by spray pyrolysis method

Journal Article


Abstract


  • The deposition of CeO2 films on fused-silica substrates by spray pyrolysis of a water-ethanol solution of a cerium nitrate precursor has been studied. Polycrystalline films have been obtained at a substrate temperature of 300-450°C after annealing of the deposit in air at temperatures in the range 350-500°C. It has been established that the best uniform ceria films with nanometric scale grains are prepared at a substrate temperature of 400°C with 0.5 h annealing of the deposit at 500°C. At lower spraying temperatures large CeO2 crystallites have been observed on the film surface along with the fine grains. When the substrate temperature exceeds 400°C, numerous cracks caused by thermal stresses appear in the films. (C) 2000 Elsevier Science Ltd.

Publication Date


  • 2000

Citation


  • Konstantinov, K., Stambolova, I., Peshev, P., Darriet, B., & Vassilev, S. (2000). Preparation of ceria films by spray pyrolysis method. International Journal of Inorganic Materials, 2(2-3), 277-280. doi:10.1016/S1466-6049(00)00024-6

Scopus Eid


  • 2-s2.0-0033796292

Start Page


  • 277

End Page


  • 280

Volume


  • 2

Issue


  • 2-3

Abstract


  • The deposition of CeO2 films on fused-silica substrates by spray pyrolysis of a water-ethanol solution of a cerium nitrate precursor has been studied. Polycrystalline films have been obtained at a substrate temperature of 300-450°C after annealing of the deposit in air at temperatures in the range 350-500°C. It has been established that the best uniform ceria films with nanometric scale grains are prepared at a substrate temperature of 400°C with 0.5 h annealing of the deposit at 500°C. At lower spraying temperatures large CeO2 crystallites have been observed on the film surface along with the fine grains. When the substrate temperature exceeds 400°C, numerous cracks caused by thermal stresses appear in the films. (C) 2000 Elsevier Science Ltd.

Publication Date


  • 2000

Citation


  • Konstantinov, K., Stambolova, I., Peshev, P., Darriet, B., & Vassilev, S. (2000). Preparation of ceria films by spray pyrolysis method. International Journal of Inorganic Materials, 2(2-3), 277-280. doi:10.1016/S1466-6049(00)00024-6

Scopus Eid


  • 2-s2.0-0033796292

Start Page


  • 277

End Page


  • 280

Volume


  • 2

Issue


  • 2-3