CeO2 thin film supported on TiO2 porous ceramics

•Porous ceramic TiO2 coated with CeO2 was synthesized (52).•Dip coating technique was used to form the thin film CeO2 (57).•Obtaining CeO2 thin film more homogeneous after 10 depositions (62). The work demonstrates an easy and simple method for obtaining a TiO2 porous ceramic coated with a CeO2 thin...

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Bibliographic Details
Published in:Materials letters 2020-10, Vol.276, p.128224, Article 128224
Main Authors: Procópio, Alley Michael Silva, do Carmo Lima Carvalho, Jaqueline, Silveira, Thales Henrique Resende, Valério, Aislan Lúcio, Vaz, Isabela Cristina Fernandes, Cabral, Ana Cristina Tolentino, de Freitas, Márcio Roberto, da Silva, Mercês Coelho, Filho, Francisco Moura
Format: Article
Language:English
Subjects:
Ceramic coatings
Ceramics
Cerium oxides
Chemical synthesis
Dip coating
Fluorite
Immersion coating
Materials science
Polymeric precursors method
Polyurethane resins
Porous ceramics
Prepolymers
Replica technique
Replication
Thermal analysis
Thin film
Thin films
Titanium dioxide
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Summary:•Porous ceramic TiO2 coated with CeO2 was synthesized (52).•Dip coating technique was used to form the thin film CeO2 (57).•Obtaining CeO2 thin film more homogeneous after 10 depositions (62). The work demonstrates an easy and simple method for obtaining a TiO2 porous ceramic coated with a CeO2 thin film (COTF) on the surface. Replica technique used a 30 PPI polyurethane sponge and TiO2 ceramic suspension. Dip coating technique was used to coat the material surface and cerium polymeric resin synthesis was obtained by polymeric precursors method. Thermal analysis indicated a thermostable material from 500 °C. X-ray diffraction analysis of calcined CeO2, at 600 to 900 °C, resulted in monophasic and crystalline with a fluorite type cubic structure. Scanning electron microscopy made it possible to monitor COTF formation and growth from islands shape to a more homogenous form over 10 depositions.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2020.128224