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Publication Citation: Combinatorial Study of Thin Film Metal Hydride by Prompt Gamma Activation Analysis

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Author(s): Raymond Cao; Jason Hattrick-Simpers; Richard Bindel; Bryan E. Tomlin; Rolf L. Zeisler; Rick L. Paul; Leonid A. Bendersky; Robert Gregory Downing;
Title: Combinatorial Study of Thin Film Metal Hydride by Prompt Gamma Activation Analysis
Published: June 19, 2009
Abstract: Cold neutron prompt gamma activation analysis (PGAA) was used to determine the amount of hydrogen in thin film Mg hydrides with varying hydrogenation times. The results suggest that the hydrogenation in the Mg thin films remains unsaturated even after 48 hours, contrary to what was indicated by indirect hydrogen measurement methods. To establish PGAA as an effective combinatorial methodology for thin film hydrides, a continuously varying composition gradient of MgyTi(1-y)Hx was prepared and analyzed by both PGAA and instrumental neutron activation analysis (INAA) to obtain the variation of the molar ratio of Mg, Ti and H with a 5 mm spatial resolution.
Citation: Journal of Radioanalytical and Nuclear Chemistry
Pages: 6 pp.
Keywords: thin film, combinatorial, metal hydride, hydrogen storage, IR emissivity, cold neutron, NAA, PGAA, INAA
Research Areas: PGAA, INAA
PDF version: PDF Document Click here to retrieve PDF version of paper (257KB)