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https://hdl.handle.net/10356/106318
Title: | α-Fe2O3-mediated growth and carbon nanocoating of ultrafine SnO2 nanorods as anode materials for Li-ion batteries | Authors: | Wang, Zhiyu Wang, Zichen Madhavi, Srinivasan Lou, David Xiong Wen |
Keywords: | DRNTU::Engineering::Materials | Issue Date: | 2012 | Source: | Wang, Z., Wang, Z., Madhavi, S., & Lou, D. X. W. (2012). α-Fe2O3-mediated growth and carbon nanocoating of ultrafine SnO2 nanorods as anode materials for Li-ion batteries. Journal of Materials Chemistry, 22(6), 2526-2531. | Series/Report no.: | Journal of materials chemistry | Abstract: | Bulk synthesis of SnO2 nanorods under acidic conditions has rarely been reported. In this work, ultrafine SnO2 nanorods with a diameter of less than 10 nm and a length of 50–100 nm have been synthesized by an interesting α-Fe2O3-mediated hydrothermal method under strongly acidic conditions. It has been found that the formation of SnO2 nanorods is induced by the α-Fe2O3 substrate due to good compatibility of the two crystal lattices. The α-Fe2O3 substrate is dissolved under acidic conditions, leading to the formation of pure SnO2 nanorods. After surface coating with a layer of amorphous carbon, the resulting carbon-coated SnO2 nanorods are evaluated as high-capacity anode materials for lithium-ion batteries. Remarkably, they exhibit greatly improved cycling stability with a high capacity of around 800 mA h g−1 at 0.2 C and satisfactory performance even at higher current rates of 0.5–1 C within 50 cycles. The excellent electrochemical performance is attributed to the unique one-dimensional nanostructure and the carbon nanocoating. | URI: | https://hdl.handle.net/10356/106318 http://hdl.handle.net/10220/11535 |
DOI: | 10.1039/c1jm14888e | Schools: | School of Chemical and Biomedical Engineering School of Materials Science and Engineering |
Research Centres: | Energy Research Institute @ NTU (ERI@N) | Rights: | © 2012 The Royal Society of Chemistry. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | ERI@N Journal Articles MSE Journal Articles SCBE Journal Articles |
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