Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5360753 | Applied Surface Science | 2008 | 5 Pages |
Abstract
Ni doped titanate nanotubes were synthesized by hydrothermal method using Ni doped rutile TiO2 nanopowders as a starting material. The electrochemical properties were investigated by cyclic voltammmetric methods. The microstructure and morphology of the synthesized powders were characterized by XRD (X-ray diffraction), and HRTEM (high resolution transmission electron microscopy). Ni doped nanotubes were composed of H2Ti2O5·H2O with outer and inner diameter of â¼10 nm and 6 nm and showed a initial discharge capacity of 305 mAh/g with poor cycling performance. However, after firing, the Ni doped nanotubes revealed better cycling performance due to lower reaction with hydrate and smaller diameter of the tubes.
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Authors
Dong Hyun Kim, Ki Soo Lee, Ji Hoon Yoon, Jum Suk Jang, Duck-Kyun Choi, Yang-Kook Sun, Sun-Jae Kim, Kyung Sub Lee,