Title: Synthesis of flowerlike SnO2 quasi-square submicrotubes from tin (II) oxalate precursor
Abstract: The flowerlike SnO2 quasi-square submicrotubes were synthesized without using any additional surfactant as a crystal modifier or capping agent. The method was based on a reaction between SnCl2 and oxalic acid in ethanol solution, followed by calcination in air to get the flowerlike SnO2 submicrotubes. The scanning electron microscope (SEM) images showed that the flowerlike SnO2 microstructure consisted of radial submicrotubes with a quasi-square cross-section. The average diameter of the flowerlike structure was about 3–7 μm. The average inner diameter of the tubes was from 20 to 240 nm and the length of the tubes was up to 3–5 μm. The X-ray diffraction pattern (XRD) demonstrated that the structure of the precursor could be indexed to SnC2O4 with high crystallinity, and the precursor turned to the tetragonal phase SnO2 after annealing. The formation mechanism of the tubular morphology was also discussed.
Publication Year: 2007
Publication Date: 2007-08-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 19
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