Study on the hydrogen behavior in Y and Co doped barium-zirconate

TL;DR

This study investigates hydrogen release behavior in yttrium and cobalt doped barium-zirconate using thermal desorption spectroscopy, revealing temperature-dependent release and higher solubility in D₂O atmospheres.

Contribution

It provides new insights into hydrogen behavior in doped barium-zirconate, highlighting effects of doping and atmosphere on hydrogen solubility and release.

Findings

Hydrogen release occurs around 1000 K.

Hydrogen solubility is higher in D₂O atmosphere.

Doping influences hydrogen behavior in the material.

Abstract

Hydrogen release behavior from mixed-perovskite oxide, yttrium and cobalt doped barium-zirconate, BaZr$_{0.955}$Y$_{0.03}$Co$_{0.015}$O$_{3-a}$ (BZYC) exposed to D$_2$ or D$_2$O atmosphere was studied by thermal desorption spectroscopy (TDS) detecting deuterium gas (D$_2$) and heavy water vapor (D$_2$O) separately. The release of hydrogen appeared at around 1000 K. Hydrogen solubility was higher in the BZYC sample exposed to the D$_2$O.