Abstract
SnO2 single-crystalline nanoneedles that were assembled into different morphologies were successfully synthesized via one-step template-free hydrothermal method, which provided a facile and low cost way for researchers to produce the 1-D (1-dimensionality) SnO2 nanostructures. The size and morphology of the product have been controlled accurately. It was proved that the nanoneedle SnO2 fabricated using hydrothermal method possessed a higher response value of 4.75 to ethanol than reported response value of 2 of SnO2 nanoneedles synthesized by other methods. The fabricated sensor also exhibited an extremely short recovery time of 2 s, which was far shorter than common 8–10 s. Moreover, a possible growth mechanism was further proposed.
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Acknowledgments
This work was supported in part by the National Natural Science Foundation of China under Grant No. 61204119, 863 Program (2015AA043503), and Innovation Program of Shanghai Municipal Education Commission under Grant No. 14ZZ019.
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Zhang, W., Yang, B. & Liu, J. Controlled synthesis of SnO2 nanoneedles using one-step template-free hydrothermal method. J Mater Sci: Mater Electron 27, 11536–11540 (2016). https://doi.org/10.1007/s10854-016-5283-x
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DOI: https://doi.org/10.1007/s10854-016-5283-x