Email this article Features of Colloidal Aggregation in Tetraethoxysilane-Water-Ethanol Ternary Mixtures by Small-Angle Neutron Scattering
- Authors: Tomchuk O.V.1,2, Avdeev M.V.1,3, Ivankov O.I.1,4,5, Bulavin L.A.2,4, Aksenov V.L.1,6
-
Affiliations:
- Joint Institute for Nuclear Research
- Taras Shevchenko National University of Kyiv
- St. Petersburg University
- Institute for Safety Problems of Nuclear Power Plants, Ukraine National Academy of Sciences
- Moscow Institute of Physics and Technology
- “Kurchatov Institute” National Research Center
- Issue: Vol 13, No 6 (2019)
- Pages: 1122-1125
- Section: Article
- URL: https://journal-vniispk.ru/1027-4510/article/view/196527
- DOI: https://doi.org/10.1134/S1027451019060545
- ID: 196527
Cite item
Open Access
Access granted
Subscription Access
Abstract
The influence of the concentration of components in a tetraethyl orthosilicate (TEOS)–water–ethanol mixture on the growth of silicate aggregates in a basic environment is studied with small-angle neutron scattering. There is a general increase in the size of aggregates with an increase in the amount of both water and TEOS. At the same time, when the H2O : TEOS molar ratio is 2 : 1, the structure of the aggregates repeats, regardless of the TEOS concentration in the system. The scattering length density of the aggregates is found via hydrogen/deuterium isotopic substitution and contrast variation to analyze the possible inclusion of residual ethyl and hydroxyl groups into their structure.
About the authors
O. V. Tomchuk
Joint Institute for Nuclear Research; Taras Shevchenko National University of Kyiv
Author for correspondence.
Email: tomchuk@jinr.ru
Russian Federation, Dubna, 141980; Kyiv, 01601
M. V. Avdeev
Joint Institute for Nuclear Research; St. Petersburg University
Author for correspondence.
Email: avd@nf.jinr.ru
Russian Federation, Dubna, 141980; St. Petersburg, 199034
O. I. Ivankov
Joint Institute for Nuclear Research; Institute for Safety Problems of Nuclear Power Plants, Ukraine National Academy of Sciences; Moscow Institute of Physics and Technology
Email: avd@nf.jinr.ru
Russian Federation, Dubna, 141980; Chornobyl, 07270; Dolgoprudny, 141701
L. A. Bulavin
Taras Shevchenko National University of Kyiv; Institute for Safety Problems of Nuclear Power Plants, Ukraine National Academy of Sciences
Email: avd@nf.jinr.ru
Ukraine, Kyiv, 01601; Chornobyl, 07270
V. L. Aksenov
Joint Institute for Nuclear Research; “Kurchatov Institute” National Research Center
Email: avd@nf.jinr.ru
Russian Federation, Dubna, 141980; Moscow, 123182
Supplementary files
