2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 7. Recycling, Secondary Batteries and Environmental Protection
| Editors: | Kongoli F, Aifantis K, Kumar V, Pagnanelli F, Kozlov P, Xueyi G |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 205 pages |
| ISBN: | 978-1-987820-73-7 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Au@TiO2 Nanotube Arrays as Durable Lithium-Ion Battery Negative Electrodes
Fuqian Yang1;1UNIVERSITY OF KENTUCKY, Lexington, United States;
Type of Paper: Invited
Id Paper: 341
Topic: 14
Abstract:
Processing and characterization of nanostructured materials play an important role in developing the next-generation anode materials for Li-ion batteries of high energy density and capacity in order to reduce the dependence on the use of fossil fuels and thus decrease the emission of greenhouse gases. The use of nanostructured materials, in particular, TiO2-based nanocomposites has become a promising strategy for improving the electrochemical performance and safety of Li-ion batteries. To increase the electrical conductivity of TiO2 (~10-13 S�cm-1), Au@TiO2 nanotube arrays are prepared via magnetron sputtering and heat treatment. The heat treatment not only leads to the transformation of TiO2 nanotube arrays from amorphous phase to anatase phase but also results in the diffusion of Au nanoparticles. X-ray diffraction, Field Emission Scanning Electron microscope, and Transmission Electron Microscope are used to characterize the microstructural evolution of the Au@TiO2 nanotube arrays. The prepared Au@TiO2 nanotube arrays are used as anode materials in lithium ion batteries, which deliver a higher capacity than pure TiO2 nanotube arrays.