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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/2770

Title: Application of secondary ion mass spectrometry in studies of niobium segregation in niobium-doped titanium dioxide.
Authors: Sheppard, LR
Atanacio, AJ
Bak, T
Nowotny, J
Prince, KE
Keywords: Titanium
Niobium
Segregation
Photocatalysis
Calibration
Mass Spectroscopy
Issue Date: 2007
Publisher: The Australian Ceramic Society
Citation: Sheppard, L. R., Atanacio, A. J., Bak, T., Nowotny, J., & Prince, K. E. (2007). Application of secondary ion mass spectrometry in studies of niobium segregation in niobium-doped titanium dioxide. Journal of the Australian Ceramic Society, 43(2), 92- 97.
Abstract: Secondary ion mass spectrometry (SIMS) is a powerful technique in the study of materials that demonstrate compositional changes as a function of depth from the surface. This is due to the high chemical sensitivity of SIMS (sensitive to ppb) and potential for high depth resolution. However, as a semi-quantitative technique, the application of SIMS to quantitative studies can be problematic without knowledge of the appropriate calibration information, which must be obtained through the use of carefully prepared reference specimens. In the present work, SIMS is used in the investigation of surface segregation in niobium doped polycrystalline TiO2. This material has demonstrated important photo-catalytic properties with implications for alternative energy generation and environmentally-friendly water purification, but requires investigation in relation to surface versus bulk processing. The present paper demonstrates the use of SIMS in the quantitatively assessment of segregation in TiO2 and the development of a calibration curve. © 2007, The Australian Ceramic Society
URI: http://apo.ansto.gov.au/dspace/handle/10238/2770
ISSN: 0004-881X
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