نتایج جستجو برای: monolith
تعداد نتایج: 887 فیلتر نتایج به سال:
A new characterisation method, based on the utilisation of focussed ion beam-scanning electron microscopy (FIB-SEM), has been employed for the evaluation of morphological parameters in porous monolithic materials. Sample FIB serial sectioning, SEM imaging and image processing techniques were used to extract the pore boundaries and reconstruct the 3D porous structure of carbon and silica-based m...
A hydrophilic versatile polymeric monolith with multiple retention mechanisms including hydrogen-bonding, π-π and electrostatic interactions, was developed by a simple one-step in situ polymerization. High mechanical stability and excellent separation capabilities of various nonpolar and polar analytes were successfully achieved and employed for multiple separations in mixed-mode chromatography.
A general, model-free, quantitative approach to the key morphological properties of a porous polymer monolith is presented. After 3D reconstruction, image-based analysis delivers detailed spatial and spatially correlated information on the structural heterogeneities in the void space and the polymer skeleton. Identified heterogeneities, which limit the monolith's performance in targeted applica...
Monoliths functionalized with ethylene diamine-derived ligands were synthetized within micro-sized channels as highly permeable catalytic supports for the immobilization of in-situ generated gold nanoparticles. The as-obtained hybrids, essentially differing on grafted amine-containing compared, notably regarding immobilized nanoparticles morphology and their dispersion at monolith pore surface....
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