Diffusion dynamics of hydrogen in amorphous silicate of nanoscale particles by neutron scattering at lower temperature conditions

Abstract

We previously demonstrated that quasielastic neutron scattering is uniquely effective for analyzing atomic-scale hydrogen transport processes in crystalline hydrous minerals. We recently started to apply it for analyzing hydrogen transport in hydrated amorphous silicate of nanoscale particles. From the results at T≦300 K where crystallization does not occur, we identified two types of transport processes, which have implication for water storage mechanism in this potential career of water into early Earth.