Abstract
A fast and economical route based on an efficient microwave-induced solid-state process has been developed to synthesize metastable TiO2(B) nanobelts with widths of 30–100 nm and lengths up to a few micrometers on a large scale. This new method reduces the synthesis time for the preparation of TiO2(B) nanobelts to less than half an hour, allowing the screening of a wide range of reaction conditions for optimizing and scaling up the production and facilitating the formation of metastable phase TiO2(B). The as-formed TiO2(B) nanobelts exhibit enhanced lithium-storage performances, compared with the TiO2(B) product obtained by the conventional heating. This study provides a new way for large-scale industrial production of high-quality metastable TiO2(B) nanostructures. The products were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy.
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Acknowledgments
This study was supported by the Natural Science Foundation of China (Grant Nos. 51002057 and 50825203), the 863 program (Grant No. 2009AA03Z225), the Natural Science Foundation of Hubei Province (Grant No. 2008CDA026), the PCSIRT (Program for Changjiang Scholars and Innovative Research Team in University), and the Fundamental Research Funds for the Central Universities (HUST: 2010QN007). The authors thank Analytical and Testing Center of HUST for XRD, Raman, SEM, and TEM measurements.
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Qiao, Y., Hu, X. & Huang, Y. Microwave-induced solid-state synthesis of TiO2(B) nanobelts with enhanced lithium-storage properties. J Nanopart Res 14, 684 (2012). https://doi.org/10.1007/s11051-011-0684-5
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DOI: https://doi.org/10.1007/s11051-011-0684-5