期刊
RSC ADVANCES
卷 7, 期 18, 页码 10885-10890出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra00469a
关键词
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资金
- Department of Education of Guizhou Province [KY[2016]106, KY[2016]009]
- Research Fund for the Doctoral Program of Tongren University [trxyDH1513]
To achieve better anode materials for sodium ion batteries, a nitrogen-doped TiO2(B) nanorod structure is developed utilizing hydrothermal treatment, ion exchange and a subsequent low temperature calcination process. Transmission electron microscopy, X-ray photoelectron spectroscopy and X-ray diffraction are employed to characterize the structure and properties of the nitrogen-doped TiO2(B). Compared with anatase TiO2 powder (325 mesh) raw materials and the TiO2(B) nanorods without N-doping, the asfabricated nitrogen-doped TiO2(B) nanorods with a nitrogen-doping amount of 1.23 atom% exhibit higher specific capacity (224.5 mA h g(-1)), good cycling stability (the capacity retention ratios after 200 cycles at 2C is 93.4%) and enhanced rate capability (110 mA h g(-1) at 3.35 A g(-1)), which is likely to be associated with enhanced conductivity due to N-doping.
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