Preparation of Porous Tin Oxide Nanobelts Using the Electrospinning Technique |
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Authors: | An Yang Xiaoming Tao Geoffrey Kin Hung Pang Kenneth Guei Gu Siu |
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Affiliation: | Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong (China); Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong (China); Department of Physics and Materials Science, City University of Hong Kong, Hong Kong (China) |
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Abstract: | The electrospinning method is adopted to prepare utralong PEO/stannic hydroxide composite nanofibers. Tin-oxide nanobelts can be obtained by calcination of the composite nanofibers in an open atmosphere. The nanobelts were characterized by a field emission scanning electron microscope, X-ray diffraction, a transmission electron microscope, a Raman spectromicroscope, and Fourier transform infrared spectroscopy. Microstructural analysis has shown that the nanobelts prepared consist of a continuous network of interconnected SnO2 grains. As a result, the SnO2 nanobelts possess a high surface area and continuous porosity, which may be applied for the fabrication of sensitive gas sensors. |
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