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Synthesis of high surface area TiO2 coatings on stainless steel by electrophoretic deposition

Schiemann, Daniel and Alphonse, Pierre and Taberna, Pierre-Louis Synthesis of high surface area TiO2 coatings on stainless steel by electrophoretic deposition. (2013) Journal of Materials Research, 28 (15). 2023-2030. ISSN 0884-2914

(Document in English)

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Official URL: http://dx.doi.org/10.1557/jmr.2013.169


Large surface area, homogenous, and adhesive TiO2 coatings on stainless steel substrates were prepared by electrophoretic deposition (EPD) of colloidal dispersions of TiO2 nanoparticles in water and ethanol. Several chemical additives were used to optimize the deposition process. The best results were obtained for dispersions in water containing a mixture of Tiron and Pluronic® F127, which gave homogeneous layers, showing excellent adhesion and a large BET surface area, close to 200 m2/g. Ethanol dispersions also gave much adhesive coatings when poly(acrylic acid) was used as an additive. Nevertheless, their thickness was lower, and their surface area was less than 100 m2/g. We have shown that water splitting, occurring in the aqueous sol during the EPD, led to deposited masses lower than those expected from the Hamaker law. However, the electrolysis of water and also the small cracks in the coatings had no detrimental effects on adhesion.

Item Type:Article
Additional Information:Thanks to Materials Research Society editor. The original PDF of the article can be found at Journal of Materials Research website : http://journals.cambridge.org/action/displayJournal?jid=JMR
HAL Id:hal-01167306
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:24 Jun 2015 09:24

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