Synthesis and electrochemical properties of Ni doped titanate nanotubes for lithium ion storage
- Authors
- Kim, Dong Hyun; Lee, Ki Soo; Yoon, Ji Hoon; Jang, Jum Suk; Choi, Duck-Kyun; Sun, Yang-Kook; Kim, Sun-Jae; Lee, Kyung Sub
- Issue Date
- Sep-2008
- Publisher
- ELSEVIER
- Keywords
- titanate nanotubes; hydrothermal method; mechanical alloying
- Citation
- APPLIED SURFACE SCIENCE, v.254, no.23, pp.7718 - 7722
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED SURFACE SCIENCE
- Volume
- 254
- Number
- 23
- Start Page
- 7718
- End Page
- 7722
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/171900
- DOI
- 10.1016/j.apsusc.2008.02.057
- ISSN
- 0169-4332
- 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 center dot H2O with outer and inner diameter of similar to 10 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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