“Traditional” sol-gel chemistry as a powerful tool for the preparation of supported metal and metal oxide catalysts

S Esposito - Materials, 2019 - mdpi.com
The sol-gel method is an attractive synthetic approach in the design of advanced catalytic
formulations that are based on metal and metal oxide with high degree of structural and …

Phase separation in gelling silica–organic polymer solution: systems containing poly (sodium styrenesulfonate)

K Nakanishi, N Soga - Journal of the American Ceramic …, 1991 - Wiley Online Library
Phase separation which occurs in parallel to the hydrolysis and gelation of alkoxysilane
solution containing poly (sodium styrenesulfonate)(NaPSS) has been investigated …

Structural considerations about SiO2 glasses prepared by sol-gel

A Duran, C Serna, V Fornes, JMF Navarro - Journal of Non-Crystalline …, 1986 - Elsevier
Silica gels were prepared from alcoholic solutions of tetraethylorthosilicate (TEOS) with
different H 2 O/TEOS molar ratios. In the present work the transformation with temperature of …

Structure-property behavior of new hybrid materials incorporating oligomeric species into sol-gel glasses. 3. Effect of acid content, tetraethoxysilane content, and …

HH Huang, B Orler, GL Wilkes - Macromolecules, 1987 - ACS Publications
A new type of hybrid material incorporating poly (dimethylsiloxane)(PDMS) with tetraeth-
oxysilane (TEOS) has been successfully produced by using a sol-gel process. This material …

Effects of the changes in the properties of silica cage along the gel/xerogel transition on the photochromic behavior of trapped spiropyrans

D Levy, D Avnir - The Journal of Physical Chemistry, 1988 - ACS Publications
The photochromism of a series of spiropyrans trapped in a polymerizing silicon
tetramethoxide system (the “sol/gel process”) was studied as a function of the reaction time …

Structures and properties of silica gels prepared by the sol—gel method

JC Ro, JC In - Journal of non-crystalline solids, 1991 - Elsevier
Apparent density, nitrogen adsorption, SEM and IR spectroscopy have been employed in a
study of structures and properties of gels prepared by the acid-and base-catalyzed reactions …

Structural properties of epoxy–silica barrier coatings for corrosion protection of reinforcing steel

MC Uvida, AA Almeida, SH Pulcinelli, CV Santilli… - Polymers, 2022 - mdpi.com
Reinforcement steel extensively applied in civil construction is susceptible to corrosion due
to the carbonation process in reinforced concrete and chloride ions diffusion. Epoxy-silica …

Effect of formamide additive on the chemistry of silica sol-gels II. Gel structure

G Orcel, LL Hench, I Artaki, J Jonas… - Journal of non-crystalline …, 1988 - Elsevier
In the present work we studied the influence of formamide on the structural and textural
characteristics of tetramethoxysilane-derived silica gels by Raman spectroscopy, small …

Effects of H2O on structure of acid-catalysed SiO2 sol-gel films

MA Fardad, EM Yeatman, EJC Dawnay… - Journal of Non …, 1995 - Elsevier
Thin silica films were deposited on silicon wafers by the sol-gel technique, using spin
coating. The sols were prepared by HCl catalysis of tetraethylorthosilicate (TEOS) diluted in …

The gel to glass transition: chemical and microstructural evolution

PF James - Journal of Non-Crystalline Solids, 1988 - Elsevier
The chemical and microstructural changes occurring in the conversion of a died gel to fully
dense glass are reviewed. The main emphasis is on gels prepared from alkoxide …