نتایج جستجو برای: silica template
تعداد نتایج: 81749 فیلتر نتایج به سال:
Synthesis of Size Distribution Controllable Zeolite Nanocrystals via a Novel Confined Space Strategy
A novel confined-space synthesis method has been developed to synthesize zeolite nanocrystals. Colloidal silica nanoparticles serving as the silica source as well as the hard template were embedded in the mesoporous carbon via in situ polymerization of furfuryl alcohol (FA) in the presence of tri-block copolymer (Pluronic P123), and then reacted with an alkaline aqueous solution (Na2O-Al2O3-H2O...
Traditional approaches to the formation of mesostructured inorganic films from block-copolymer and surfactant templates rely on simultaneous assembly of amphiphilic structure-directing agents and inorganic sol–gel precursor species into ordered hybrid structures. Variations in sample composition and processing conditions have afforded considerable control over the local (nanometer-scale) morpho...
New block co-polymer enable wide pore structures, suitable for biomolecule infiltration. These new porous thin films were compared to standard Pluronic based mesoporous layers, both, steric and charge effects on inflitration assessed.
Mesoporous silica materials are promising host structures for diverse applications in nanoscience. Many applications can profit significantly from the ability to influence guest dynamics in the host matrix. To this end, we introduce covalently attached organic functionalization into the walls of mesoporous silica networks. Using single-molecule fluorescence microscopy, we study the diffusion be...
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