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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Z.L. Wang, Zinc oxide nanostructures: growth, properties and applications, J. Phys.: Condens. Matter., 2004, Vol. 16, P. R829–R858.
D. Wang, X.Q. Meng, Z.Q. Chen, and Q. Fu, Effect of electric field and postgrowth annealing on the morphology and crystallinity of hydrothermally grown ZnO nanostructures, Physica E, 2008, Vol. 40, No. 4, P. 852–858.
A.A. Vostrikov, O.N. Fedyaeva, A.V. Shishkin, and M.Ya. Sokol, ZnO nanoparticles formation by reactions of bulk Zn with H2O and CO2 at sub- and supercritical conditions: II. Morphology and properties of nanoparticles, J. Supercrit. Fluids, 2009, Vol. 48, No. 2, P. 161–166.
A.V. Shishkin and M.Ya. Sokol, The effect of constant electric field on the oxidation rate of massive zinc in supercritical water and the formation of zinc oxide nanocrystals, Techn. Phys. Lett., 2014, Vol. 40, No. 6, P. 516–519.
M. Watanabe, T. Sato, H. Inomata, Yr.R.L. Smith, K. Arai, A. Kruse, and E. Dinjus, Chemical reactions of C1 compounds in near-critical and supercritical water, Chem. Rev., 2004, Vol. 104, P. 5803–5821.
A.A. Vostrikov and O.N. Fedyaeva, Mechanism and kinetics of Al2O3 nanoparticles formation by reaction of bulk Al with H2O and CO2 at sub- and supercritical conditions, J. Supercrit. Fluids, 2010, Vol. 55, No.1, P. 307–315.
A.A. Vostrikov, D.Yu. Dubov, and M.Ya. Sokol, Special features of the tungsten wire heat transfer and the WO3 nanoparticles synthesis in supercritical water, J. Engng Thermophys., 2013, Vol. 22, No. 3, P. 236–240.
CRC Handbook of Chemistry and Physics, Internet Version 2007, (87th Edition), Ed. Lide D.R. Boca Raton, FL: Taylor and Francis, 2007. http://www.hbcpnetbase.com.
O. Kubaschewski and C.B. Alcock, Metallurgical Thermochemistry, Pergamon Press, New York, 1979.
K.G. Libbrecht and V.M. Tanusheva, Electrically induced morphological instabilities in free dendrite growth, Phys. Rev. Lett., 1998, Vol. 81, No. 1, P. 176–179.
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
- zinc oxide
- supercritical water
- electric field