About this Research Topic
The accuracy of such predictions relies on reaction mechanisms, chemical kinetics, and reactant transport in natural materials. Most valuable are the models which allow to use fundamental material properties with minimal fitting parameters. However, it remains a great challenge to derive macroscopic reactivity of subsurface systems, since the temporal and spatial scale of interconnected processes span several orders of magnitude from nanometers to meters. The main goal of this Research Topic is to gather reports on studies which bring together molecular scale phenomena and their impact on the macroscopic world.
This Research Topic is focused on recent studies of mineral interfaces and subsurface-relevant porous materials that highlight the significant advances in understanding reactivity on molecular level, identify methodologies to incorporate this knowledge on pore-scale, and ultimately yield robust quantitative kinetics on macroscale.
We are specifically interested in submissions that incorporate molecular-scale-derived understanding in pore-scale theoretical and experimental studies, uncover fundamental phenomena which lead to enhanced or suppressed reactivity on the macroscale, and highlight the knowledge gaps in upscaling methods. The contributed manuscripts that report on a combination of characterization, experimental, data processing, and modeling methods are encouraged. The subject includes:
- Mineral crystallization including nucleation (heterogeneous, homogeneous, non-classical), growth, and dissolution
- Ion adsorption, water structure, ionic clusters in solutions and solution structure on mineral-water interface
- Reactive transport in porous media with high porosity gradients: dual porosity, multiscale porosity
- Molecular scale mineral dissolution and precipitation: surface instabilities, mineral morphology, crystallographic face-specific reaction rates
- Reaction kinetics in presence of impurity ions and/or organic molecules, and their incorporation into the solid structure
- Reactive transport studies assessing coupled geochemical processes in energy-related applications
Keywords: Mineral reactivity, Upscaling, Mineral Surface Properties, Water Structure, Adsorption, Nucleation, Porous Media
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.