Low temperature synthesis of SnO2 nanocrystals from tin, sulfur and ammonium chloride powders |
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Authors: | Hai Xin Bai |
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Affiliation: | College of sciences, Henan Agricultural University, Zhengzhou, Henan 450002, China |
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Abstract: | Tetragonal phase SnO2 nanocrystals were synthesized directly by heating the mixture of tin (Sn), sulfur (S) and ammonium chloride (NH4Cl) powders in air at 400 °C for 2-5 h. The phase, size and purity of the resultant products were characterized by means of powder X-ray diffraction (XRD), filed emission scanning electronic microscope (FESEM), and energy dispersive X-ray (EDX) spectra. Besides, the effects of heating temperature, duration, and composition of the reactants on the phases of the resultant products were investigated. It was found that both of the S and NH4Cl additives played important roles in the current low temperature (400 °C) synthesis of pure SnO2. |
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Keywords: | Characterization methods Semiconductors X-ray techniques |
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