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Aging of titania hydrosols prepared via ultrasonic processing

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Abstract

We have studied the effect of aging conditions on the properties of titania hydrosols produced via ultrasonic processing and containing aggregates of 5-nm-diameter amorphous particles. The results demonstrate that, at room-temperature, 0.44 M to 0.11 M hydrosols are stable for 3 to 22 days. During aging for 40 to 45 days, the properties of 0.01 M to 0.0025 M hydrosols remain unchanged. Aging for a longer time causes the amorphous particles to crystallize in the anatase structure. Raising the temperature to 75°C reduces the induction time to 3–4 h.

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Authors and Affiliations

  1. State Research and Design Institute for the Rare-Metals Industry, Bol’shoi Tolmachevskii per. 5/1, Moscow, 119017, Russia

    M. M. Soderzhinova, D. V. Tarasova & F. Kh. Chibirova

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  1. M. M. Soderzhinova
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  2. D. V. Tarasova
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  3. F. Kh. Chibirova
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Correspondence to M. M. Soderzhinova.

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Original Russian Text © M.M. Soderzhinova, D.V. Tarasova, F.Kh. Chibirova, 2016, published in Neorganicheskie Materialy, 2016, Vol. 52, No. 5, pp. 517–522.

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Soderzhinova, M.M., Tarasova, D.V. & Chibirova, F.K. Aging of titania hydrosols prepared via ultrasonic processing. Inorg Mater 52, 470–475 (2016). https://doi.org/10.1134/S0020168516050162

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  • DOI: https://doi.org/10.1134/S0020168516050162

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