Skip to main content Accessibility help
×
Home

Fabrication of TiO2 nanospheres by template replication in porous carbon networks

  • J. C. Kim (a1), Y. N. Kim (a1), E. O. Chi (a1), N. H. Hur (a1), S. B. Yoon (a2) and J-S. Yu (a2)...

Abstract

A silica-colloidal template approach was used to prepare monodisperse nanospheres of TiO2. Close-packed arrays of silica spheres were infiltrated with a sucrose precursor used as a source of carbon. The infiltrated sucrose was carbonized by calcination at 800 °C in flowing argon. After removal of the silica spheres by washing with HF, a porous carbon replica remained. The resulting pores in the replica were then filled with a chloroform solution of titanium alkoxide. Nanospheres of TiO2 approximately 200 nm in diameter were obtained after calcination of the organic component at 600 °C in an argon atmosphere and subsequent sintering in air at 700 °C.

Copyright

References

Hide All
Barbe, C.J., Arendse, F., Comte, P., Jirousek, M., Lenzmann, F., Shkiover, V., and Gratzel, M., J. Am. Ceram. Soc. 80, 3157 (1997).
Oregan, B., Schwartz, D.T., Zakeeruddin, S.M., and Gratzel, M., Adv. Mater. 12, 1263 (2000).
Gopidas, K.R., Bohorques, M., and Kamat, P.V., J. Phys. Chem. 84, 6435 (1999).
Wijnhoven, J.E.G.J. and Vos, W.L., Science 281, 802 (1998).
Rengarajan, R., Jiang, P., Colvin, V., and Mittleman, D., Appl. Phys. Lett. 77, 3517 (2000).
Rubio, J., Oteo, J.L., Villegas, M., and Duran, P., J. Mater. Sci. 32, 643 (1997).
Kumazawa, H., Otsuki, H., and Sada, E., J. Mater. Sci. Lett. 12, 839 (1993).
Wei, Y., Wu, R., and Zhang, Y., Mater. Lett. 41, 101 (1999).
Jiang, P., Bertone, J.F., and Colvin, V.L., Science 291, 453 (2001).
Velev, O.D. and Kaler, E.W., Adv. Mater. 7, 12 (2000).
Stober, W., Fink, A., and Bohn, E., J. Colloid Interface Sci. 26, 62 (1968).
Yu, J-S., Yoon, S.B., and Chai, G.S., Carbon 39, 1421 (2001).
Denkov, N.D., Velev, O.D., Kratchevsky, P.A., Ivanov, I.B., Yoshimura, H., and Nagayama, K., Nature 361, 26 (1993).
Denkov, N.D., Yoshimura, H., and Nagayama, K., Ultramicroscopy 147 (1996).
Horn, M., Schwerdtfeger, C.F., and Meagher, E.P., J. Am. Ceram. Soc. 53, 124 (1970).

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed