The influence of preparation conditions on porous SiO2 structure studied by FTIR spectroscopy

Title Alternative:Štúdium vplyvu podmienok prípravy na štruktúru porézneho SiO2 FTIR spektroskopiou
Simple item page
dc.contributor.authorPagáčová, Jana
dc.contributor.authorPlško, Alfonz
dc.contributor.authorStaňová, Iveta
dc.contributor.authorJóna, Eugen
dc.contributor.authorMüllerová, Jana
dc.contributor.authorExnar, Petr
dc.contributor.authorLukáč, Anton
dc.contributor.authorMarčeková, Lýdie
dc.date.accessioned2016-05-24
dc.date.available2016-05-24
dc.date.issued2007
dc.description.abstractSurface area, porosity, pore structure and ability to bind to other substances are very important properties in various applications of porous SiO2. The properties are largely dependent on SiO2 structure, which is influenced by its preparation. Porous SiO2 was prepared by coagulation of solutions of an alkali metal silicate. The influence of temperature and pH on the structure of porous SiO2 was studied by FTIR. It was found that the siloxane four-membered rings along with the expected six-membered rings occurred as basic structural units in all the prepared materials. An increase in pH leads to a significant decrease in the content of the four-membered rings and a decrease in the Si-OH/Si-O- ratio in the silica network. However, the relative amount of Si-OH groups increases. Temperature has no significant influence on the amount of different structural units.en
dc.formattext
dc.identifier.issn0009-2770
dc.identifier.scopus2-s2.0-34548297010
dc.identifier.urihttps://dspace.tul.cz/handle/15240/16419
dc.language.isocs
dc.publisherTechnical university of Liberec, Czech Republicen
dc.publisherTechnická Univerzita v Libercics
dc.relation.ispartofChemické Listycs
dc.sourcej-scopus
dc.sourcej-wok
dc.titleThe influence of preparation conditions on porous SiO2 structure studied by FTIR spectroscopyen
dc.title.alternativeŠtúdium vplyvu podmienok prípravy na štruktúru porézneho SiO2 FTIR spektroskopiousl
dc.typeArticle
local.accessopen
local.citation.epage679
local.citation.spage673
local.departmentDepartment of Chemistry
local.facultyFaculty of Sciences, Humanities and Education
local.fulltextyes
local.identifier.codenCHLSA
local.identifier.stagRIV/46747885:24510/07:@0000028
local.identifier.wok248939000007
local.relation.issue8
local.relation.volume101
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
2-s2.0-34548297010-o.pdf
Size:
580.42 KB
Format:
Adobe Portable Document Format
Description:
Článek
Download
Collections