1 edition of Topological evolution and properties of sol-gel silica monoliths found in the catalog.
Written in English
|Statement||by Wander Luiz Vasconcelos|
|The Physical Object|
|Pagination||xxxi, 415 leaves :|
|Number of Pages||415|
"Structure evolution of layered double hydroxides "Influence of additives and post-synthesis treatment on the structural properties of sol-gel prepared alumina-doped zirconia studied by "Glycol-modified organosilanes in the synthesis of inorganic-organic silsesquioxane and silica monoliths"; Journal of Sol-Gel Science and. Laser dye doped mesoporous silica fibers: Host-guest interaction and fluorescence properties, German Telbiz, Olexyi Shvets, Sergiy Boron, Vladimir Vozny, Mykhailo Brodyn, and Galen D. Stucky, Stud. Surf. Sci. Catal. , Zeolites and Mesoporous Materials at the Dawn of the 21st Century, ().
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Monoliths with a specific surface area around m2 g−1 and bulk density of g cm−3 were been obtained. was stable during the sol−gel silica synthesis. In this work using first. After this soft matter dedicated study, the acquired knowledge was transferred toward the hierarchical porous silica generations, where the sol-gel process is involved. Mixing P with TTAB, macro-mesoporous monolithic silica with an enhanced contribution of the specific surface area due to mesoporosity can be prepared.
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Content: Preface, Pages vii-viii. 1 - The Concept, Pages 2 - Sol-Gel Kinetics, Pages 3 - Aging, Pages 4 - Drying, Pages 5 - Stabilization, Pages 6 - Densification, Pages 7 - Laser Densification, Pages 8 - Gel-Silica Optics, Pages 9 - Porous Gel-Silica Optical Matrices, Pages 10 - Biological Implications, Pages Development of a Computer Application to Simulate Porous Topological Evolution and Properties of Sol-Gel Silica Monoliths Vasconcelos, W.L.
Topological Evolution and. Silica monoliths featuring either mesopores or flow-through macropores and mesopores in their skeleton are prepared by combining spinodal phase separation and sol-gel macroporous. Organic/inorganic hybrid materials prepared by the sol−gel approach have rapidly become a fascinating new field of research in materials science.
The explosion of activity in this area in the past decade has made tremendous progress in both the fundamental understanding of the sol−gel process and the development and applications of new organic/inorganic hybrid materials.
The mechanical properties of the film depend on the dispersion degree of palygorskite nanorods. The better the rods dispersion is, the better the reinforcing properties of the films are, and the optimum dosage of palygorskite is usually 1%–3%. However, the presence of valence-variable metal ions such as Fe(III)/Fe(II) in palygorskite may Author: Wenbo Wang, Aiqin Wang.
It has been proved that surfactant−silicate supramolecular architecture formed on a silicon substrate is strongly affected by the crystal orientation of a silicon wafer, indicating the variation of the interactions between the surfactants and the silicon surfaces. The hexagonal mesoporous silica film with aligned mesochannels was grown on a () wafer, whereas the mesochannels were not Cited by: Silica aerogels are highly porous 3D nanostructures and have exhibited excellent physio-chemical properties.
Although silica aerogels have broad potential in many fields, the poor mechanical properties greatly limit further applications. In this study, we have applied the finite volume method (FVM) method to calculate the mechanical properties of silica aerogels with different geometric Cited by: 4.
The most extensively studied materials based on hybrid mesoporous structures are organically modified mesoporous silicates. These nanostructured hybrids can be obtained directly during synthesis or upon hybridization by means of grafting or co-condensation of organic molecules such as long-chain alkylalkoxysilanes and their organofunctional derivatives, as well as graft- or inclusion Cited by: Silica nanoparticles with different sizes and amino group organic chains were synthesized and dispersed into polyalphaolefin (PAO) via a modified process.
The synthesized HSNs were characterized by variety of methods. The tribology properties of those HSNs were investigated using a four-ball by: Nanostructured porous carbon materials have diverse applications including sorbents, catalyst supports for fuel cells, electrode materials for capacitors, and hydrogen storage systems.
When these materials have hierarchical porosity, interconnected pores of different dimensions, their potential application is increased. Hierarchical nanostructured carbons (HNCs) that contain 3D-interconnected Cited by: A. Sienkiewicz, A. Kierys, M. Gorgol and R. Zaleski, Porosity of Silica Monoliths with Tailored Mesopores of Ink-Bottle Shape Determined by Nitrogen Adsorption and Positron Annihilation Lifetime Spectroscopy, Acta Physica Polonica A,5, (), ().Cited by: SOL-GEL TECHNOLOGY The most studied of the sol-gel chemistry, certainly system based on silica that also appeared historic starting chemistry of sol-gel processes .
For the first time in Ebelmen transparent material received by the slow hydrolysis of the ester of silicic acid. Innocenzi P, Falcaro P, Grosso D, Babonneau F. Order–disorder transitions and evolution of silica structure in self-assembled mesostructured silica films studied through FTIR spectroscopy.
J Phys Chem B. ;–7. Dielectric properties The dielectric properties at microwave frequencies of the prepared ceramics are shown in Table IV. For comparison, table IV also shows the typical values of (ZrTiSn)0 2 and Ba(TiNiZnTa)0 3 ceramics prepared according to the mixed oxide method, and of the Ba(MgTa)0 3 ceramic from ref.
Selvan ST, Nogami M, Nakamura A, Hamanaka Y () A facile sol-gel method for the encapsulation of gold nanoclusters in silica gels and their optical properties. J Non-Cryst (2–3)– CrossRef Google ScholarAuthor: Ignác Capek.
Three-dimensional nanoporous aerogels and suitable preparation methods are provided. Nanoporous aerogels may include a carbide material such as a silicon carbide, a metal carbide, or a metalloid carbide.
Elemental (e.g., metallic or metalloid) aerogels may also be produced. In some embodiments, a cross-linked aerogel having a conformal coating on a sol-gel material is processed to form a Cited by: 9.
P3HB3HH x monoliths with topological porous structure were prepared by dissolution of P3HB3HH x in dimethyl sulfoxide (DMSO) at 85 °C and subsequent quenching. The microstructure of the resulting P3HB3HH x monoliths was changed by the P3HB3HH x concentration of the polymer solution.
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The book, authored by leading experts in this emerging field, gives an overview of the main aspects related to the processing of diverse cellular ceramic structures, methods of structural and properties characterisation and well established industrial, novel and potential applications.
Colloidal Crystal Films: Advances in Universality and PerfectionCited by:. Proc. SPIEIntegrated Optics: Devices, Materials, and Technologies XXII, (23 February ); doi: /Welcome to the Sustainable Industrial Processing Summit and Exhibition. Following the previous rich tradition, the summit will cover 3 sustainability pillars: (1) Science, Technology and Industrial Practice, (2) Political and Social Framework and (3) Education.polyvinylpyrrolidone modified bioactive glass fibers as tissue constructs: synthesis, characterization and rat mesenchymal stem cell response by brian matthew hatcher a thesis presented to the graduate school of the university of flor ida in partial fulfillment of the requirements for the degree of master of science university of florida