Colloid-chemical properties of suspension electrolytes for obtaining of PbO2–TiO2 composite materials

Valentina A. Кnysh, Tetiana V. Luk’yanenko, Nikolai V. Nikolenko, Alexander B. Velichenko

Abstract


The sizes of colloid particles and aggregate stability of nitrate and methanesulfonate suspension electrolytes used for obtaining of PbO2–TiO2composite materials were investigated. It is found, that TiO2colloid solutions at the presence of the big surpluses of plumbum ions and acids are inclined to fast aggregation. The same effect results also introduction in electrolytes of the sodium dodecylsulfate additives. It was established that the adsorption of sodium dodecylsulfate on the TiO2 powder had a weak specific nature, as evidenced by the low value of the energy of adsorption interaction. As a result of the conducted researches it was established that aggregately stable suspension electrolytes may be derived from sols of titanium dioxide, which are formed by the hydrolysis of titanium isopropylate. Optimum conditions of obtaining of electrolytes with high aggregative stability were determined: рН ~ 1, concentration Pb(II) salt – 0.1 M, the size of particles TiO2 sol – no more than 14 nm.a


Keywords


electrolyte; size of particles; titan dioxide; aggregative stability

References


Velichenko, A. B., Knysh, V. A., Luk’yanenko, T. V., Devilly, D., & Danilov, F. I. (2008). PbO2–TiO2 Composites: Electrosynthesis and Physicochemical Properties. Russ. J. of Applied Chemistry, 81(6), 994–999.

Velichenko, A. B., Knysh, V. A., Luk’yanenko, T. V., Danilov, F. I., & Devilliers, D. (2009). PbO2–TiO2 Composite Electrodes. Prot. of Metals and Physical Chemistry of Surfaces, 45(3), 327–332.

Velichenko, A. B., Knysh, V. A., Luk'yanenko, T. V., Velichenko, Yu. A., & Devilliers, D. (2012). Electrodeposition PbO2–TiO2 and PbO2–ZrO2 and its physicochemical properties. Materials Chemistry and Physics, 131(3), 686–693.

Barbe’, C. J., Arendse’, F., Comte, P., Jirousek, M., Lenzmann, F., Shklover, V., & Graetzel, M. (1997). Nanocrystalline Titanium Oxide Electrodes for Photovoltaic Applications J. Amer. Geram. Soc., 80, 3157-3171.

Gribov, L. A. (1976). [Introduction to molecular spectroscopy]. Moskow, USSR: Nauka (in Russian).

Velichenko, A. B., Kasyan, O. I., Knish, V. A., & Lukyanenko, T. V. (2015). [Composite electrocatalysts containing valve metals oxides: preparation, physico-chemical properties and electrocatalytic activity]. Voprosy khimii i khimicheskoi technologii – Issues of Chemistry and Chemical Technology, (2), 7–24 (in Ukrainian).

Tsevis, A., Spanos, N., Koutsoukos, P. G., Linde, A. J., & Lyklema, J. (1998). Preparation and characterization of anatase powders. J. Chem. Soc., Faraday Trans, 94(2), 295–300.

Nikolsky, B. P. (1965). [Reference Book in Chemistry. Vol. 2: Basic Properties of Inorganic and Organic Compounds]. Leningrad, USSR: Chemistry (in Russian).

Golovnin, V. A., Kaplunov, I. A., Malyshkina, O. V., Ped'ko, B. B., & Movchikova, A. A. (2013). Physical Principles. In Investigation Methods and Practical Application of Piezomaterials (272 p.). Moscow, USSR: Tekhnosfera Publishing House.

Parfit, G. (1986). [Adsorption from solutions on surfaces of solids] Moscow, USSR: Mir (in Russian).

Nechaev, E. A. (1989). [Chemisorption of organic compounds on oxides and metals]. Kharkov, USSR: Vischa shkola (in Ukrainian).




DOI: http://dx.doi.org/10.15421/081604

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