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On the use of ion scattering to examine the role of hydrogen in the reduction of TiO2

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Abstract

Rutherford backscattering spectrometry (RBS) was used to measure the titanium concentration profile for hydrogen-reduced, vacuum-reduced, and as-received, stoichiometric rutile. These profiles give the degree of reduction, specifically, the extent of oxygen deficiency, as a function of depth below the sample surface. Using forward-recoil spectrometry (FRES), the hydrogen-reduced rutile was found to contain more bulk and near-surface hydrogen than the as-received, stoichiometric rutile. This observation provides additional evidence for a hydrogen-diffusion model for the reduction of rutile in a hydrogen environment.

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Author notes

  1. W. E. Wallace

    Present address: National Institute of Standards and Technology, Maryland, 20899, Gaithersburg, USA

  2. Q. Zhong

    Present address: AT&T Bell Laboratories, New Jersey, 07974, Murray Hill, USA

Authors and Affiliations

  1. Department of Materials Science and Engineering, The University of Pennsylvania, Pennsylvania, 19104-6272, Philadelphia, USA

    W. E. Wallace, Q. Zhong, J. Genzer, R. J. Composto & D. A. Bonnell

Authors
  1. W. E. Wallace
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  2. Q. Zhong
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  3. J. Genzer
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  4. R. J. Composto
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  5. D. A. Bonnell
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Wallace, W.E., Zhong, Q., Genzer, J. et al. On the use of ion scattering to examine the role of hydrogen in the reduction of TiO2. Journal of Materials Research 8, 1629–1634 (1993). https://doi.org/10.1557/JMR.1993.1629

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  • DOI: https://doi.org/10.1557/JMR.1993.1629

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