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Search for the form of fullerene C60 in aqueous medium
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SYSNO ASEP 0348663 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Search for the form of fullerene C60 in aqueous medium Author(s) Pospíšil, Lubomír (UFCH-W) RID, ORCID
Gál, Miroslav (UFCH-W)
Hromadová, Magdaléna (UFCH-W) RID, ORCID, SAI
Kocábová, Jana (UFCH-W) RID
Kolivoška, Viliam (UFCH-W) RID, ORCID
Cvačka, Josef (UOCHB-X) RID, ORCID
Nováková, Kateřina (UOCHB-X) RID, ORCID
Kavan, Ladislav (UFCH-W) RID, ORCID
Zukalová, Markéta (UFCH-W) RID, SAI, ORCID
Dunsch, L. (DE)Source Title Physical Chemistry Chemical Physics. - : Royal Society of Chemistry - ISSN 1463-9076
Roč. 12, č. 42 (2010), s. 14095-14101Number of pages 7 s. Language eng - English Country GB - United Kingdom Keywords fullerene C60 ; electrochemical measurements ; electrochemistry Subject RIV CG - Electrochemistry R&D Projects GA203/09/0705 GA ČR - Czech Science Foundation (CSF) GP203/09/P502 GA ČR - Czech Science Foundation (CSF) IAA400400804 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) KAN200100801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) OC 140 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LC510 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40400503 - UFCH-W (2005-2011) AV0Z40550506 - UOCHB-X (2005-2011) UT WOS 000283262400025 DOI 10.1039/C0CP00986E Annotation A transfer of fullerene C60 to water was achieved by sonication of a two-phase system of water and C60 in organic solvents, namely, benzene and toluene. Resulting aqueous dispersions were analyzed electrochemically, spectroscopically, by MALDI-MS and AFM methods. Samples prepared from benzene yield the formal redox potential very close to a value expected from the correlation of redox potentials and solvent donor numbers. However, these samples are not stable and C60 precipitates out of the aqueous dispersion. Sonication of the toluene/water system produces stable system, in which the measured formal redox potential of C60 is less negative. Stabilization of C60 clusters in water is achieved by the presence of an organic amphiphile and spectroscopic methods indicate the presence of benzoate formed during sonication of a toluene/water mixture. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2011
Number of the records: 1