Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-10T19:00:43.597Z Has data issue: false hasContentIssue false

A Micro-Raman Study of Niobium Titanium Oxide Powders Obtained by Laser-Induced Synthesis

Published online by Cambridge University Press:  10 February 2011

L. E. Depero
Affiliation:
Istituto Nazionale di Fisica per la Materia and Dipartimento di Chimica e Fisica per i Materiali, Università di Brescia, Via Branže, 38 – 25123 Brescia, Italy
L. Sangaletti
Affiliation:
Istituto Nazionale di Fisica per la Materia and Dipartimento di Chimica e Fisica per i Materiali, Università di Brescia, Via Branže, 38 – 25123 Brescia, Italy
E. Bontempi
Affiliation:
Istituto Nazionale di Fisica per la Materia and Dipartimento di Chimica e Fisica per i Materiali, Università di Brescia, Via Branže, 38 – 25123 Brescia, Italy
R. Salari
Affiliation:
Istituto Nazionale di Fisica per la Materia and Dipartimento di Chimica e Fisica per i Materiali, Università di Brescia, Via Branže, 38 – 25123 Brescia, Italy
C. Casale
Affiliation:
CISE Tecnologie Innovative, Via Reggio Emilia, 39 – 20090 Segrate MI -ITALY
M. Musci
Affiliation:
CISE Tecnologie Innovative, Via Reggio Emilia, 39 – 20090 Segrate MI -ITALY
M. Notaro
Affiliation:
CISE Tecnologie Innovative, Via Reggio Emilia, 39 – 20090 Segrate MI -ITALY
Get access

Abstract

Microraman and scanning electron microscopy studies have been performed on pure TiO2 and Nb-Ti-O nanopowders obtained by laser induced synthesis. The effect of Nb content on the temperature of the anatase to rutile phase transformation, induced by annealing in air at different temperatures, has been evidenced and related to the changes in the particle size distributions obtained from a Fourier analysis of the X-ray diffraction patterns.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Siegel, R. W., Nanophase Materials: Synthesis. Structure, and Properties, in Fujita, F. E. (Ed.), Physics of New Materials. Springer, Berlin (1994)Google Scholar
2. Fiorani, D. and Sberveglieri, G. (Eds.) Fundamental Properties of Nanostructured Materials. World Scientific, Singapore (1994)Google Scholar
3. Hoffmann, M. R., Martin, S. T., Choi, W. Y., Bahnemann, D. W., Chem. Rev, 95, 69 (1995)Google Scholar
4. Haber, J., Nowak, P., Langmuir, 11, 1024 (1995)Google Scholar
5. Sberveglieri, G., Depero, L. E., Ferroni, M., Guidi, V., Martinelli, G., Nelli, P., Perego, C., and Sangaletti, L., Adv. Mater. 4, 334 (1996)Google Scholar
6. Birkefeld, L.D., Azad, A.M., and Akbar, S.A., J. Amene. Ceramic Soc. 75, 2964 (1992)Google Scholar
7. Azad, A.M., Akbar, S.A., Younkam, L.B., and Alim, M.A., J. Americ. Ceramic Soc. 77, 3145 (1994)Google Scholar
8. Chung, W.Y., Lee, D.D., and Sohn, B.K., Thin Solid Films, 1–2, 304 (1992)Google Scholar
9. Bond, G.C., Sarkany, A.J., and Parfitt, G.D., J. Catal. 57, 476 (1979)Google Scholar
10. Sankar, G., Kaunan, K.R., and Rao, C.N.R., Catal. Lett. 8, 27 (1991)Google Scholar
11. Curcio, F., Musei, M., Notaro, N., and De Michele, G., Appl. Surf. Sci. 46, 225 (1990)Google Scholar
12. Musei, M., Notaro, M., Curcio, F., Casale, C., and De Michele, G., J. Mat. Res. 7, 2846 (1992)Google Scholar
13. Schneider, M., Scharf, U., Wokaun, A., and Baiker, A., J. Catal. 150, 284 (1994)Google Scholar
14. Depero, L.E., J. of Solid State Chem. 103, 528 (1993)Google Scholar
15. Depero, L.E., Bonzi, P., Zocchi, M., Casale, C., and De Michele, G., J. Mat. Res. 8, 2709 (1993)Google Scholar
16. Depero, L.E., Bonzi, P., Musei, M., and Casale, C., J. of Solid State Chem. 111, 247 (1994)Google Scholar
17. Bregani, F., Casale, C., Depero, L. E., Natali-Sora, I., Robba, D., Sangaletti, L., and Toledo, G.P., Sensors and Actuators B 31, 25 (1996)Google Scholar
18. Banfield, J.F., Bishoff, B.L., and Anderson, M.A., Chem. Geol. 110, 211 (1993)Google Scholar
19. The Nb content was estimated by an X-ray photoemission analysis of the powders.Google Scholar
20. Haro-Poniatowski, E., Rodriguez-Talavera, R., de la Cruz Heredia, M., and Cano-Corona, O., Arroyo-Murillo, R., J. Mater. Res. 9, 2102 (1994)Google Scholar
21. Samara, G. A. and Perry, P. S., Phys. Rev. B 7, 1131 (1973)Google Scholar
22. Beattie, I. R. and Gilson, T. R., Proc. Royal Soc. A 307, 407 (1968)Google Scholar
23. Nemanich, R., Solin, S. A., Martin, R. M., Phys. Rev. B 23, 6348 (1981)Google Scholar
24. Richter, H., Wang, Z. P., and Ley, L., Solid State Comm. 39, 625 (1981)Google Scholar
25. Hayashi, S., Ito, M., and Kanamori, H., Solid State Comm. 44, 75 (1982)Google Scholar
26. Depero, L.E., Sangaletti, L., Bontempi, E., Salari, R., Zocchi, M., Casale, C., and Notaro, M., to be publishedGoogle Scholar
27. JCPDS database, International Centre for Diffraction Data, Swarthmore (PA) 1994 Google Scholar
28. Nemanich, R.J. and Solin, S.A., Phys. Rev. B 20, 392 (1979)Google Scholar
29. Bobovich, Ya S. and Tsenter, M. Ya., Opt. Spectrosc. 53, 332 (1982)Google Scholar