Lithium Intercalation Properties of Porous Anatase TiO2 with Bimodal Pore Size Distribution

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The lithium intercalation properties of anatase TiO2 electrodes with a bimodal pore size distribution were examined. Porous anatase TiO2 was prepared by hydrolyzing titanium tetrabutoxide using polyoxietylene cetyl ether as a surfactant and its subsequent calcination at 500°C for 4 hours. A porous anatase TiO2 electrode with a relatively large pore volume and 50-nm-diamater pores showed a discharge capacity of approximately 150 mAh g-1. It maintained a relatively large discharge capacity of 125 mAh g-1 at a current density of 1 A g-1, and exhibited a good high-rate capability.

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Periodical:

Edited by:

K. Katayama, K. Kato, T. Takenaka, M. Takata and K. Shinozaki

Pages:

187-190

DOI:

10.4028/www.scientific.net/KEM.350.187

Citation:

S. Suzuki et al., "Lithium Intercalation Properties of Porous Anatase TiO2 with Bimodal Pore Size Distribution ", Key Engineering Materials, Vol. 350, pp. 187-190, 2007

Online since:

October 2007

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$35.00

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[2] 0 Specific Capacity, Q / mAh (g-TiO2) -1 Potential, E / V (vs. Li+ /Li) 50 mA g-1 100 mA g-1 200 mA g-1 500 mA g-1 1 A g-1 0 50 100 150.

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[2] 0 Specific Capacity, Q / mAh (g-TiO2) -1 Potential, E / V (vs. Li+ /Li) 50 mA g-1 100 mA g-1 200 mA g-1 Figure 3. Discharge curves for Comp-LP at various current densities. Figure 4. Discharge curves for Comp-HP at various current densities.

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