Synthesis of Nanosize Tin Dioxide by a Novel Liquid‐Phase Process - Progress in Nanotechnology - Wiley Online Library

Well-dispersed tin (IV) oxide (SnO₂) nanosize crystallites are prepared by a novel liquid-phase process using Na₂SnO₃ precursor of several micrometers in size. The product was characterized using powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and BET. The nanosize SnO₂ powder formed has a narrow particle size distribution ranging between 1 and 7 nm, a very high surface area, and crystallizes in the tetragonal structure. A possible mechanism for the liquid-phase process, which is a combined effect of coprecipitation, hydrolization, and molecular decomposition, is proposed.

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