Bromiley, G. D. and Shiryaev, A. A. (2006) Neutron irradiation and post-irradiation annealing of rutile (TiO2-x): effect on hydrogen incorporation and optical absorption. Physics and Chemistry of Minerals, 33 (6). pp. 426-434. ISSN 0342-1791 (Print) 1432-2021 (Online) DOI https://doi.org/10.1007/s00269-006-0087-9
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Abstract
Neutron irradiation and post-irradiation annealing under oxidising and reducing conditions have been used to investigate H incorporation in, and the optical properties of, reduced (TiO2−x ) rutile. Optical absorption in rutile is mainly due to a Ti3+ Ti4+ intervalence charge transfer effect. The main mechanism for H incorporation in rutile involves interstitial H not coupled to other defects, which has important implications for the rate of H diffusion, and possibly also on the electrical properties of rutile. Additional minor OH absorption bands in IR spectra indicate that a small amount of interstitial H is coupled to defects such as Ti3+ on the main octahedral site, and indicates that more than one H incorporation mechanism may operate. Concentration of oxygen vacancies has a controlling influence on the H affinity of rutile.
Item Type: | Article |
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Uncontrolled Keywords: | 2006 AREP IA51 IA52 2006 P |
Subjects: | 03 - Mineral Sciences |
Divisions: | 03 - Mineral Sciences |
Journal or Publication Title: | Physics and Chemistry of Minerals |
Volume: | 33 |
Page Range: | pp. 426-434 |
Identification Number: | https://doi.org/10.1007/s00269-006-0087-9 |
Depositing User: | Sarah Humbert |
Date Deposited: | 16 Feb 2009 13:01 |
Last Modified: | 23 Jul 2013 10:01 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/162 |
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