About: Synthesis of homogeneous silicophosphate xerogels by non-hydrolytic condensation reactions

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About: Synthesis of homogeneous silicophosphate xerogels by non-hydrolytic condensation reactions Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.sciencedirect.com/science/article/pii/S1387181114003370#
Description	A novel non-hydrolytic synthesis of silicophosphate xerogels and optimization of reaction conditions to obtain products with a high degree of condensation and a large specific surface area are presented. Homogeneous products with a high content of Si-O-P bonds and SiO6 moieties were synthesized by an ester elimination route at low temperature from silicon acetate, Si(OAc)(4), and tris(trimethylsilyl) phosphate, OP(OSiMe3)(3) (TTP). Depending on the reaction conditions (temperature, solvent, time) it was possible to control the degree of condensation (up to 85.7%) and porosity of amorphous xerogels (apparent surface areas from 230 to 568 m(2) g(-1)). The composition and morphology of the xerogels, volatile reaction byproducts, thermal transformations and surface modification with methanol were followed by elemental analysis, IR spectroscopy, thermal analysis TG-DSC, nitrogen adsorption, C-13, Si-29, and P-31 solid-state NMR spectroscopy, and powder XRD. (C) 2014 Elsevier Inc. All rights reserved. A novel non-hydrolytic synthesis of silicophosphate xerogels and optimization of reaction conditions to obtain products with a high degree of condensation and a large specific surface area are presented. Homogeneous products with a high content of Si-O-P bonds and SiO6 moieties were synthesized by an ester elimination route at low temperature from silicon acetate, Si(OAc)(4), and tris(trimethylsilyl) phosphate, OP(OSiMe3)(3) (TTP). Depending on the reaction conditions (temperature, solvent, time) it was possible to control the degree of condensation (up to 85.7%) and porosity of amorphous xerogels (apparent surface areas from 230 to 568 m(2) g(-1)). The composition and morphology of the xerogels, volatile reaction byproducts, thermal transformations and surface modification with methanol were followed by elemental analysis, IR spectroscopy, thermal analysis TG-DSC, nitrogen adsorption, C-13, Si-29, and P-31 solid-state NMR spectroscopy, and powder XRD. (C) 2014 Elsevier Inc. All rights reserved. (en)
Title	Synthesis of homogeneous silicophosphate xerogels by non-hydrolytic condensation reactions Synthesis of homogeneous silicophosphate xerogels by non-hydrolytic condensation reactions (en)
skos:prefLabel	Synthesis of homogeneous silicophosphate xerogels by non-hydrolytic condensation reactions Synthesis of homogeneous silicophosphate xerogels by non-hydrolytic condensation reactions (en)
skos:notation	RIV/00216224:14740/14:00073904!RIV15-MSM-14740___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0068), P(EE2.3.30.0037), P(GAP207/11/0555), P(LH11028), S
http://linked.open...iv/cisloPeriodika	OCTOBER 2014
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Pinkas, Jiří Moravec, Zdeněk Stýskalík, Aleš Škoda, David
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Středoevropský technologický institut
http://linked.open...dnocenehoVysledku	49033
http://linked.open...ai/riv/idVysledku	RIV/00216224:14740/14:00073904
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Sol-Gel; Non-hydrolytic; Silicophosphate; Phosphosilicate; Xerogel (en)
http://linked.open.../riv/klicoveSlovo	Silicophosphate Sol-Gel Phosphosilicate Non-hydrolytic Xerogel
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[EF105CA90D3E]
http://linked.open...i/riv/nazevZdroje	MICROPOROUS AND MESOPOROUS MATERIALS
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Employment of Best Young Scientists for International Cooperation Empowerment Central european institute of technology Metal Oxides and Phosphates as Nuclear Waste Forms: Sonochemical Precipitation, Thermal Transformations, and Solubility Studies Nonhydrolytic Sol-Gel Reactions for the Synthesis of Silicates and Phosphates with Controlled Porosity and Surface Functionality
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	197
http://linked.open...iv/tvurceVysledku	Moravec, Zdeněk Pinkas, Jiří Škoda, David Stýskalík, Aleš Abbott, JG Barnes, CE
http://linked.open...ain/vavai/riv/wos	000340990200026
issn	1387-1811
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.micromeso.2014.06.019
http://localhost/t...ganizacniJednotka	14740

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