This article is cited in 19 papers

Synthesis of Fe$_x$O$_y$ nanoparticles during iron oxidation by supercritical water

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

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

Abstract: It is established that iron is oxidized by supercritical water (SCW) with the formation of H$_2$ and nanoparticles of iron oxides (Fe$_3$O$_4$, FeO, and $\gamma$-Fe$_2$O$_3$). The kinetics of H$_2$ production and iron oxidation has been studied by SCW injection at $T$ = 673, 723, 773, 823, and 873 K into a reactor with iron particles. Data of X-ray diffraction and transmission electron microscopy show that the phase composition and morphology of synthesized oxide nanoparticles depend on the SCW temperature.

Received: 05.06.2012

 English version: Technical Physics Letters, 2012, 38:10, 955–958

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