Solution route to SnO2 crystals with controllable morphology |
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| Authors: | Y.Q. Guo R.Q. TanY. Li W.J. Song |
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| Affiliation: | a Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
b College of Information Science and Engineering, Ningbo University, Ningbo 315211, China |
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| Abstract: | SnO2 crystals with various morphologies were prepared by a facile hydrothermal method in the simple solution systems of SnCl2 and SnCl4, respectively. This process was carried out under mild conditions and required no high-temperature heat treatment. The morphological evolution with the preparation conditions was investigated. Various self-assembled hierarchical structures including microspheres assembled with nanoparticles, oriented nanocones, and flower-like, cabbage-like structures consisting of single-crystalline nanosheets were obtained by varying the solvent and the introduction of polyethylene glycol. A possible mechanism for the formation of the spherical hierarchically structures assembled by cone-like nanocrystals was proposed. |
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| Keywords: | SnO2 Morphology Hierarchical structure Solution |
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