首页|Stability of hydrogenated silica glass and desorption kinetics of molecular hydrogen
Stability of hydrogenated silica glass and desorption kinetics of molecular hydrogen
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NSTL
Elsevier
The stability of saturated solid solutions of molecular hydrogen in silica glass was examined in the temperature range 85 divided by 175 K by Raman spectroscopy. The kinetics of hydrogen desorption was studied in-situ by tracking time-dependent changes in the intensities of hydrogen rotational modes at an elevated temperature. The heating results in an exponential decrease in the hydrogen content with a temperature dependent time constant. The data at different temperatures are well described by the Arrhenius formula showing the activation character of desorption with the activation energy E-A = (0.16 +/- 0.01) eV and time constant A = (0.027 +/- 0.003) sec.
NSTL
Elsevier
