About: Optimizing Conditions for Ultrasound Extraction of Fullerenes from Coal Matrices

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Conditions for ultrasound toluene extraction of synthetic C60 added to powdered bituminous coal were tested. High-performance liquid chromatography (HPLC) was used to determine the fullerene content in the obtained extracts. The results indicated a possible negative effect of sample demineralization (HCl/HF) and N2 purging on the extraction yield of C60. On the contrary, a 30% yield increase was registered when the coal was pre-extracted with pentane or pentane/toluene. The best conditions for C60 recovery in the investigated mixtures are 30min of sonication at 280-285K. The effects of sample filtration, sequential extraction, ultrasound bath power and treatments of C60 solution alone are also discussed. Conditions for ultrasound toluene extraction of synthetic C60 added to powdered bituminous coal were tested. High-performance liquid chromatography (HPLC) was used to determine the fullerene content in the obtained extracts. The results indicated a possible negative effect of sample demineralization (HCl/HF) and N2 purging on the extraction yield of C60. On the contrary, a 30% yield increase was registered when the coal was pre-extracted with pentane or pentane/toluene. The best conditions for C60 recovery in the investigated mixtures are 30min of sonication at 280-285K. The effects of sample filtration, sequential extraction, ultrasound bath power and treatments of C60 solution alone are also discussed. (en)
Title	Optimizing Conditions for Ultrasound Extraction of Fullerenes from Coal Matrices Optimizing Conditions for Ultrasound Extraction of Fullerenes from Coal Matrices (en)
skos:prefLabel	Optimizing Conditions for Ultrasound Extraction of Fullerenes from Coal Matrices Optimizing Conditions for Ultrasound Extraction of Fullerenes from Coal Matrices (en)
skos:notation	RIV/00216208:11310/09:10000630!RIV10-GA0-11310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA205/03/1468), P(GA205/07/0772), P(GP205/06/P348), S, Z(AV0Z10100520), Z(AV0Z40400503), Z(MSM0021620855)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Jehlička, Jan Vítek, Petr Frank, Otakar
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	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	332050
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/09:10000630
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	fullerene C60; Ultrasound-assisted extraction; Extraction yield; Fullerene decomposition (en)
http://linked.open.../riv/klicoveSlovo	Extraction yield Fullerene decomposition Ultrasound-assisted extraction fullerene C60
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[045C9E3A8096]
http://linked.open...i/riv/nazevZdroje	Fullerenes Nanotubes and Carbon Nanostructures
http://linked.open...in/vavai/riv/obor	DD
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Fullerene formation in rocks by pyrolysis of bitumen precursors Fullerene behaviour in geological materials and environments Formation and preservation of fullerenes in rocks
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	17
http://linked.open...iv/tvurceVysledku	Hamplová, Věra Jehlička, Jan Juha, Libor Vítek, Petr Frank, Otakar Pokorná, Zdeňka Boháček, Zbyněk
http://linked.open...ain/vavai/riv/wos	000263812700004
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace Material flow mechanisms in the upper spheres of the Earth
issn	1536-383X
number of pages	14 (xsd:int)
http://localhost/t...ganizacniJednotka	11310

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