Effects of ion irradiation on H2O and CO2 absorption and desorption characteristics of Li2ZrO3 and Pt-coated Li2ZrO3

B. Tsuchiya, S. Nagata, T. Sugiyama, Kazutoshi Tokunaga

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4 Citations (Scopus)

Abstract

The effects of irradiation with 10 keV D2 + ions on the hydrogen and water absorption and desorption characteristics of Li2ZrO3 and platinum-coated Li2ZrO3 (Pt-Li2ZrO3) were investigated by employing elastic recoil detection (ERD), weight gain measurement (WGM), and thermal desorption spectroscopy (TDS). WGM and ERD results indicated that the amounts of H and H2O absorbed into the ion irradiated bulk Li2ZrO3 and Pt-Li2ZrO3 samples in air at room temperature increased up to ∼2–3 times, as compared with those of the unirradiated ones. TDS examinations revealed that the amounts of hydrogen molecules (H2) and H2O released from the unirradiated Pt-Li2ZrO3 and ion irradiated Li2ZrO3 and Pt-Li2ZrO3 were approximately one order of magnitude higher than those of unirradiated Li2ZrO3. Li segregation, ion-induced oxygen deficiency, as well as Pt deposition significantly enhance the splitting of H2O, eventually increasing the amounts of H accumulated in the bulk Li2ZrO3 and the H2 release.

Original languageEnglish
Pages (from-to)23746-23750
Number of pages5
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number37
DOIs
Publication statusPublished - Sep 14 2017

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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