A new approach to characterize the nanostructure of activated carbons from mathematical morphology applied to high resolution transmission electron microscopy images

摘要: Abstract A new characterization method of the nanoporous structure activated carbons (ACs) is proposed, based on mathematical morphology analysis high resolution transmission electron microscopy (TEM) images. It produces refined statistics describing shape, size and orientation defective graphene sheets seen edge as individual fringes TEM also provides some quantitative information regarding their spatial arrangement. Especially, assemblages composed 2–4 nearly parallel fringe fragments could be detected, which were relevant partial stacking sheets. Such possibly locally oriented along a common direction to form large continuous domains. To prove ability image tool reveal distinctive features degrees disorder AC structures, set various commercial carbon adsorbents was characterized. The measured effective spaces separating fringes, stacks domains examined compared with porosity data derived from 77 K–N 2 adsorption isotherms. Consistency between two sets assessed interpreted by considering N diffusional limitations resulting micropore network connectivity.