Hydrothermal Synthesis of Nanosized SnO2

Abstract

Abstract: Uniform nanosized SnO₂ particles were prepared by a hydrothermal method using SnC1₄·5H₂O as the starting material.The influences of reaction temperature,acidity in reaction medium and concentration of reactant on the formation,morphology and particle size of SnO₂ crystallite were investigated.The XRDanalysis showed that the products formed at different temperatures(120～220℃) in acid medium were all tetragonal SnO₂.With raising reaction temperature,particles grew gradually.Their particle sizes were ca.2 nm(120℃ )～6 nm(220℃) in [SnCl₄]=1 mol/L,PH=1.45,respectively.Decreasing the acidity in reaction medium appropriately(for example PH=1.45) favored a decrease in particle size and an increase in yield.

Key words: Tin dioxide, Nanosized particle, Hydrothermal synthesis

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CHENG Hu-Min, MA Ji-Ming, ZHAO Zhen-Guo, QI Li-Min. Hydrothermal Synthesis of Nanosized SnO₂[J]. Chem. J. Chinese Universities, 1996, 17(6): 833.

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Hydrothermal Synthesis of Nanosized SnO₂

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