Study and modeling of hydrogen release from Ti, Zr, Ni, Pd, Pt during linear heating

Yu I. Tyurin, N. N. Nikitenkov, V. S. Sypchenko, Zhang Hongru, Ma Syaole

Research output: Contribution to journalArticlepeer-review

Abstract

New the experimental results of thermally stimulated hydrogen release (TCHR) from plane-parallel plates of Ti, Zr, Ni, Pd, Pt metals with various thicknesses (0.05–1 mm), pre-saturated with hydrogen, under linear heating (1 °C s−1) presented. The electrolytic and Sieverts method for saturate were used. Theoretical models for diffusion and desorption hydrogen release from flat metal samples into vacuum with linear heating were developed. In this case, the processes of diffusion and thermal desorption were taken into account to select the optimal conditions and experimental methods. The TSHR spectra simulated using the MATLAB software package to test the consistency of theory with experiment. By modeling in MATLAB using both the developed models and experimental TSHR spectra, the activation energies of desorption, diffusion and decomposition of hydrides, as well as the preexponential factors in the diffusion and kinetic equations, were determined.

Original languageEnglish
Pages (from-to)19523-19541
Number of pages19
JournalInternational Journal of Hydrogen Energy
Volume46
Issue number37
DOIs
Publication statusPublished - 28 May 2021

Keywords

  • Desorption kinetics
  • Hydrides
  • Hydrogen diffusion and release
  • Linear heating
  • Non-equilibrium release
  • Solid solutions

ASJC Scopus subject areas

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

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