Abstract
SnO2 nanoparticles have been successfully synthesized by a facile hydrothermal method from SnCl2·2H2O, hexamethylenetetramine, and trisodium citrate in water at 120 °C for 12 h. The effects of surfactant and precipitant on SnO2 synthesis were investigated. SnO2 nanoparticles can be synthesized in the temperature range of 120-180 °C with long reaction time in the presence of trisodium citrate. When NaOH was used as precipitant instead of hexamethylenetetramine, it is difficult to obtain SnO2 nanoparticles at 120 °C in the presence of trisodium citrate. SnO2 nanoparticles with an average size of about 5 nm show good crystallinity and excellent sensitivity to ethanol and acetaldehyde in about 55% relative humidity.
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Acknowledgments
This work was supported by the “Innovation and Entrepreneurship Training Program” of the Jiangsu students (No. 201310291012Z), the National Natural Science Foundation of China (Grant No. 51372113), Program for New Century Excellent Talents in University (NCET-12-0733, China), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), and Specially Appointed Professors by Universities in Jiangsu Province (SPUJP-2012, China).
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Lu, P., Hu, X., Huang, H. et al. Controllable Low-Temperature Hydrothermal Synthesis and Gas-Sensing Investigation of Crystalline SnO2 Nanoparticles. J. of Materi Eng and Perform 25, 1342–1346 (2016). https://doi.org/10.1007/s11665-016-1991-x
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DOI: https://doi.org/10.1007/s11665-016-1991-x