Nucleation and Crystal Growth on the Secondary Substrate

Substrate surface properties govern the stochastic dynamics of solid precipitation during reactive transport in the porous media. Probability and anity for nucleation and subsequent growth are higher on or adjacent to the newly formed crystals than the foreign substrate surface [1, 2]. Detailed high-resolution scanning electron microscopy (SEM) with secondary electrons (SE) together with energy-dispersive X-ray spectroscopy (EDS) provided direct evidence of this selective phenomenon.