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- Title
Hydrothermal Realization of a Hierarchical, Flowerlike MnWO<sub>4</sub>@MWCNTs Nanocomposite with Enhanced Reversible Li Storage as a New Anode Material.
- Authors
Shim, Hyun ‐ Woo; Lim, Ah ‐ Hyeon; Kim, Jae ‐ Chan; Lee, Gwang ‐ Hee; Kim, Dong ‐ Wan
- Abstract
A phase-pure MnWO4-based nanocomposite, MnWO4@MWCNTs (MWCNTs=multiwalled ), was successfully synthesized through a simple hydrothermal reaction at 180 °C by adjusting the pH of the precursor medium. The resulting nanocomposite maintains the original flowerlike morphology of MnWO4 with hierarchical structures composed of numerous single-crystalline nanorods that drive growth preferentially along the [001] direction. The growth mechanism for the flowerlike formations is also discussed. In addition, the Li electroactivity of pure MnWO4 and MnWO4@MWCNTs electrodes was investigated. As an anode for Li-ion batteries, the MnWO4@MWCNTs nanocomposite showed enhanced electrochemical performance in reversible Li storage relative to that shown by bare MnWO4 electrodes, including a high capacity of 425 mAh g−1 and superior rate performance. This performance can be attributed to the synergistic effect of the nanocomposite combined with the MWCNTs, which provide efficient electron transport in their role as a conductor.
- Subjects
HYDROTHERMAL electric power systems; HYDROGEN-ion concentration; ELECTRIC resistors; PARTICLES (Nuclear physics); FREE electron theory of metals
- Publication
Chemistry - An Asian Journal, 2013, Vol 8, Issue 11, p2851
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201300765