A. A. Vostrikov, O. N. Fedyaeva, A. V. Shishkin, M. Ya. Sokol, “Synthesis of ZrO<nobr>$_2$</nobr> nanoparticles during zirconium oxidation by supercritical water”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2010, Volume 36, Issue 17,Pages <nobr>1

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Synthesis of ZrO$_2$ nanoparticles during zirconium oxidation by supercritical water

A. A. Vostrikov, O. N. Fedyaeva, A. V. Shishkin, M. Ya. Sokol

S.S. Kutateladze Institute of Thermophysics, Siberian Division of the Russian Academy of Sciences

Abstract: We have discovered that massive samples of solid zirconium (Zr)$_s$ are completely oxidized by supercritical water (SCW, $T >$ 647 K, $P >$ 22.1 MPa) with the formation of zirconium oxide nanoparticles (ZrO$_2$)$_n$. The particle size distribution, morphology, and features of the nanostructure formation depend on the process conditions. The kinetics of H$_2$ production and zirconium oxidation has been determined using the method of SCW injection into a reactor with (Zr)$_s$ at various temperatures. The dependence of the oxidation induction time on the SCW parameters has been studied.

Received: 12.03.2010