Formation of ZnO at zinc oxidation by near- and supercritical water under the constant electric field

Abstract

The work has detected an influence of a constant electric field (up to E = 300 kV/m) on the structure of a nanocrystalline layer of zinc oxide, formed on the surface of a planar zinc anode in water under supercritical (673 K and 23 MPa) and near-critical (673 K and 17. 5 MPa) conditions. The effect of an increase of zinc oxidation rate with an increase in E is observed under supercritical conditions and is absent at near-critical ones. Increase in the field strength leads to the formation of a looser structure in the inner part of the zinc oxide layer.

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Correspondence to A. V. Shishkin.

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The work was financially supported by the Russian Foundation for Basic Research (Grant No. 13-08-00119-a) and DEMEMP program (Project 4.2) within investigation of the influence of electric field on the kinetics of Zn oxidation, and the Russian Science Foundation (Grant No. 14-19-00801) within the study of structural changes in growing ZnO layer under the influence of an electric field.

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Shishkin, A.V., Sokol, M.Y., Shatrova, A.V. et al. Formation of ZnO at zinc oxidation by near- and supercritical water under the constant electric field. Thermophys. Aeromech. 21, 729–734 (2014). https://doi.org/10.1134/S0869864314060079

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Keywords

  • oxidation
  • nanoparticles
  • zinc oxide
  • supercritical water
  • electric field