چکیده (انگلیسی):

Particle sizes play a major role to mediate charge transfer, both between identical and different
material surfaces.The study probes into the probablemechanism that actuates opposite
polarities between two different size fractions of the same material by analyzing the charge
transfer patterns of two different sizes of microcrystalline cellulose (MCC). Quantum scale
calculations confirmed alteration of charge transfer capacities due to variation of moisture
content predicted by multiple surface and bulk analytical techniques. Discrete Element
Method (DEM) based multi-scale computational models pertinent to predict charge transfer
capacities were further implemented, and the results were in accordance to the
experimental charge profiles.