Wetting Preference of Silica Surfaces in the Context of Underground Hydrogen Storage: A Molecular Dynamics Perspective.

ABSTRACT: The growing interest in large-scale underground hydrogen (H₂) storage (UHS) emphasizes the need for a comprehensive understanding of the fundamental characteristics of subsurface environments. The wetting preference of subsurface rock is a crucial parameter influencing the H₂ flow behavior during storage and withdrawal processes. In this study, we utilized molecular dynamics simulation to evaluate the wetting preference of the silica surface in subsurface hydrogen systems, with the aim of addressing disparities observed in experimental results. We conducted an initial comprehensive assessment of potential models, comparing the wettability of five common silica surfaces with different surface morphologies and hydroxyl densities in CO₂-H₂/water/sil

SUBMITTER: Ghafari MA 

PROVIDER: S-EPMC11447897 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature