Nanotech 2009 Vol. 3
Nanotech 2009 Vol. 3
Nanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling

Energy, Storage, Fuel Cells, Hydrogen and Grid Chapter 2

High lithium ion storage capacity of CO annealed titania nanotube arrays

Authors: D. Liu, Y. Zhang, G. Cao

Affilation: University of Washington, United States

Pages: 50 - 57

Keywords: titania nanotube arrays, CO annealing, lithium-ion intercalation

Highly ordered titania nanotube (TNT) arrays were fabricated by anodic oxidation of titanium foil followed by CO annealing. The lithium-ion intercalation capacities of the as-prepared sample was studied and found to be improved a lot compared with not only the unannealed arrays but also the arrays annealed in nitrogen. The initial discharge capacity was as high as 360 mAh/g and the cycle stability was also very good. X-ray Photoelectron Spectra (XPS) and the results show that annealing in CO can create Ti3+ defect and carbon-doping on TiO2 nanotube surface. The high lithium-ion storage capacity could be attributed to the greatly improved conductivity induced by Ti3+ defect and carbon-doping

ISBN: 978-1-4398-1784-1
Pages: 694
Hardcopy: $179.95

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