SiO2-TiO2 Binary Aerogels: A Small-Angle Scattering Study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00543960" target="_blank" >RIV/61389005:_____/21:00543960 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1134/S003602362106005X" target="_blank" >https://doi.org/10.1134/S003602362106005X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S003602362106005X" target="_blank" >10.1134/S003602362106005X</a>

Jazyk výsledku

angličtina

Název v původním jazyce

SiO2-TiO2 Binary Aerogels: A Small-Angle Scattering Study

Popis výsledku v původním jazyce

Structural analysis in the range of characteristic sizes from 1 nm to similar to 1.5 mu m was performed for SiO2-TiO2 aerogels prepared in supercritical CO2, isopropanol, hexafluoroisopropanol, or methyl-tert-butyl ether using small-angle X-ray scattering and neutron scattering complementary methods. A two-level model that accounts for scattering by individual inhomogeneities and their aggregates, which have fractal properties, satisfactorily describes the aerogel structures over the entire range of scales. It is shown for the first time that the titania concentration is the key factor in the small-angle neutron and X-ray scattering by SiO2-TiO2 aerogels. The phase composition of an aerogel does not significantly affect the aerogel structure in the range of scales from 1 nm to similar to 1.5 mu m, as probed by small-angle X-ray and neutron scattering.

Název v anglickém jazyce

SiO2-TiO2 Binary Aerogels: A Small-Angle Scattering Study

Popis výsledku anglicky

Structural analysis in the range of characteristic sizes from 1 nm to similar to 1.5 mu m was performed for SiO2-TiO2 aerogels prepared in supercritical CO2, isopropanol, hexafluoroisopropanol, or methyl-tert-butyl ether using small-angle X-ray scattering and neutron scattering complementary methods. A two-level model that accounts for scattering by individual inhomogeneities and their aggregates, which have fractal properties, satisfactorily describes the aerogel structures over the entire range of scales. It is shown for the first time that the titania concentration is the key factor in the small-angle neutron and X-ray scattering by SiO2-TiO2 aerogels. The phase composition of an aerogel does not significantly affect the aerogel structure in the range of scales from 1 nm to similar to 1.5 mu m, as probed by small-angle X-ray and neutron scattering.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LM2015056" target="_blank" >LM2015056: Centrum urychlovačů a jaderných analytických metod</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Russian Journal of Inorganic Chemistry

ISSN

0036-0236

e-ISSN

1531-8613

Svazek periodika

66

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

874-882

Kód UT WoS článku

000668179600011

EID výsledku v databázi Scopus

2-s2.0-85111115306