Journal of Radioanalytical and Nuclear Chemistry

, Volume 283, Issue 1, pp 63–68

Combinatorial study of thin film metal hydride by prompt gamma activation analysis

Authors

    • Analytical Chemistry DivisionNational Institute of Standards and Technology
    • Department of Materials Science and EngineeringUniversity of Maryland at College Park
  • J. R. Hattrick-Simpers
    • Metallurgy DivisionNational Institute of Standards and Technology
  • R. Bindel
    • Analytical Chemistry DivisionNational Institute of Standards and Technology
  • B. E. Tomlin
    • Analytical Chemistry DivisionNational Institute of Standards and Technology
  • R. Zeisler
    • Analytical Chemistry DivisionNational Institute of Standards and Technology
  • R. Paul
    • Analytical Chemistry DivisionNational Institute of Standards and Technology
  • L. A. Bendersky
    • Metallurgy DivisionNational Institute of Standards and Technology
  • R. G. Downing
    • Analytical Chemistry DivisionNational Institute of Standards and Technology
Article

DOI: 10.1007/s10967-009-0058-y

Cite this article as:
Cao, L.R., Hattrick-Simpers, J.R., Bindel, R. et al. J Radioanal Nucl Chem (2010) 283: 63. doi:10.1007/s10967-009-0058-y

Abstract

Cold neutron prompt gamma activation analysis (PGAA) was used to determine the mass of hydrogen in Mg hydride thin films with varying hydrogenation times. The results suggest that hydrogenation of the Mg thin films remains unsaturated even after 48 h of treatment, contrary to the indications of inferential hydrogen measurement methods. To demonstrate PGAA as an effective combinatorial methodology for hydride thin films, a continuously varying composition gradient of thin MgyTi(1−y) hydride film with y ranging from 0.65 to 0.94 was prepared and analyzed by both PGAA and instrumental neutron activation analysis (INAA). The variation in the molar ratio of Mg, Ti, and H was obtained for nine 5 mm wide segments of the film.

Keywords

Thin filmCombinatorialMetal hydrideHydrogen storageIR emissivityCold neutronNAAPrompt gamma activation analysis Instrumental neutron activation analysis

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009