Paper Title:
Lithium Intercalation Properties of Octatitanates Composed of Nanosheets with Various Dimensions
  Abstract

Lithium intercalation properties of octatitanates composed of nanosheets were examined. Several types of nanosheet-octatitanates were prepared by the reassembly of tetratitanate nanosheets in colloidal suspension, which were separated centrifugally at various revolutions, and then by a heat treatment. The colloidal suspension was obtained by the exfoliation of tetrabutylammonium tetratitanate intercalation compound. The capacities of the octatitanates composed of nanosheets were approximately 160 mAh/g, and they were maintained even after the exfoliation and the reassembly. The octatitanate composed of nanosheets with relatively small dimensions centrifugally separated at 6000 rpm exhibited a large capacity of 140 mAh/g at a relatively high current density of 1 A/g. The nanosheet process was found to be effective in improving the high rate capability.

  Info
Periodical
Edited by
Masaru Miyayama, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki
Pages
135-138
DOI
10.4028/www.scientific.net/KEM.301.135
Citation
S. Suzuki, M. Miyayama, "Lithium Intercalation Properties of Octatitanates Composed of Nanosheets with Various Dimensions", Key Engineering Materials, Vol. 301, pp. 135-138, 2006
Online since
January 2006
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