Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Physico-chemical properties of C 60 (OH) 22–24 water solutions : Density, viscosity, refraction index, isobaric heat capacity and antioxidant activity. / Podolsky, Nikita E.; Marcos, Marco A.; Cabaleiro, David; Semenov, Konstantin N.; Lugo, Luis; Petrov, Andrey V.; Charykov, Nikolay A.; Sharoyko, Vladimir V.; Vlasov, Timur D.; Murin, Igor V.
в: Journal of Molecular Liquids, Том 278, 15.03.2019, стр. 342-355.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Physico-chemical properties of C 60 (OH) 22–24 water solutions
T2 - Density, viscosity, refraction index, isobaric heat capacity and antioxidant activity
AU - Podolsky, Nikita E.
AU - Marcos, Marco A.
AU - Cabaleiro, David
AU - Semenov, Konstantin N.
AU - Lugo, Luis
AU - Petrov, Andrey V.
AU - Charykov, Nikolay A.
AU - Sharoyko, Vladimir V.
AU - Vlasov, Timur D.
AU - Murin, Igor V.
N1 - Publisher Copyright: © 2018
PY - 2019/3/15
Y1 - 2019/3/15
N2 - This paper investigates the physico-chemical properties of several polyhydroxylated fullerene (fullerenol, C 60 (OH) 22–24 ) water solutions. The values of densities (ρ), refraction indexes (n D ), isobaric heat capacities (C p ) and viscosities (η) were experimentally determined in the temperature range 278.15–323.15 K and at fullerenol concentrations up to 40 g·dm −3 . For the highest fullerenol concentration (40 g·dm −3 ), density, viscosity and isobaric heat capacity modifications reach 4.5%, 56%, and 3%, respectively. Either temperature, T, and concentration, x, dependences of these physical properties were described by polynomial fittings or well-known expressions as the Vogel-Fulcher-Tamman equation, while T-x behaviors were described with the use of a second order polynomial function of both temperature and concentration (the standard deviations do not exceed 0.04). The dynamic and structural characteristics of (fullerene-water) and (fullerenol-water) binary systems were determined by using DFT and MD methods. Finally, the study was completed with the characterization of antioxidant activity of the fullerenol.
AB - This paper investigates the physico-chemical properties of several polyhydroxylated fullerene (fullerenol, C 60 (OH) 22–24 ) water solutions. The values of densities (ρ), refraction indexes (n D ), isobaric heat capacities (C p ) and viscosities (η) were experimentally determined in the temperature range 278.15–323.15 K and at fullerenol concentrations up to 40 g·dm −3 . For the highest fullerenol concentration (40 g·dm −3 ), density, viscosity and isobaric heat capacity modifications reach 4.5%, 56%, and 3%, respectively. Either temperature, T, and concentration, x, dependences of these physical properties were described by polynomial fittings or well-known expressions as the Vogel-Fulcher-Tamman equation, while T-x behaviors were described with the use of a second order polynomial function of both temperature and concentration (the standard deviations do not exceed 0.04). The dynamic and structural characteristics of (fullerene-water) and (fullerenol-water) binary systems were determined by using DFT and MD methods. Finally, the study was completed with the characterization of antioxidant activity of the fullerenol.
KW - Antioxidant activity
KW - Aqueous solutions
KW - Density
KW - Fullerenol
KW - Isobaric heat capaсity
KW - Molecular dynamics simulation
KW - Refraction index
KW - Viscosity
UR - http://www.scopus.com/inward/record.url?scp=85060113915&partnerID=8YFLogxK
U2 - 10.1016/j.molliq.2018.12.148
DO - 10.1016/j.molliq.2018.12.148
M3 - Article
AN - SCOPUS:85060113915
VL - 278
SP - 342
EP - 355
JO - Journal of Molecular Liquids
JF - Journal of Molecular Liquids
SN - 0167-7322
ER -
ID: 38765826