|
Эта публикация цитируется в 3 научных статьях (всего в 3 статьях)
CHEMISTRY AND MATERIAL SCIENCE
Cryometry and excess thermodynamic functions in water soluble of the fullerenol C$_{60}$(OH)$_{24}$
N. A. Charykovab, K. N. Semenovacd, V. A. Keskinova, N. A. Kulenovae, Z. K. Shaimardanove, B. K. Shaimardanovae, L. V. Gerasimovaa, Ayat Kanbara, D. G. Letenkof a St. Petersburg State Technological Institute (Technical University),
Moskovsky prospect, 26 Saint-Petersburg, 190013, Russia
b St. Petersburg Electrotechnical University “LETI”, ul. Professora Popova 5, 197376 St. Petersburg, Russia
c Pavlov First Saint Petersburg State Medical University,
L’va Tolstogo str. 6-8 Saint Petersburg, 197022, Russia
d St. Petersburg State University,7/9 Universitetskaya emb., Saint-Petersburg, 199034, Russia
e D. Serikbayev East Kazakhstan state technical university,
A. K. Protozanov Street, 69, Ust-Kamenogorsk city, 070004,The Republic of Kazakhstan
f St. Petersburg State University of Architecture and Civil Engineering (SPSUACE),
2-nd Krasnoarmeiskaya St. 4, 190005 St. Petersburg, Russia
Аннотация:
The temperature of water-ice crystallization initiation decreases ($\Delta\mathrm{T}$) were determined in the binary water solutions of water soluble fullerenol: $\mathrm{C}_{60}\mathrm{(OH)}_{24}-\mathrm{H}_{2}\mathrm{O}$ at $272.85$-$273.15$ K. Solution concentrations (in molar fractions) vary over a wide range $x_{nano-cluster} = 5.0\cdot10^{-6}\div 1.6\cdot10^{-4}$ a.un. Liquidus temperatures were determined with the help of Beckman thermometer with a linear resolution of the device scale $\frac{\Delta T}{\Delta h}\approx 0.01$ K/mm ($h$ — height of Hg capillary raising). For the thermodynamic description of the discussed systems, we have elaborated an original semi-empirical model, the virial decomposition asymmetric model (VD-AS), with assistance from partial molar functions of nano-clusters (activities and activity coefficients) were calculated. The Gibbs energies for the solutions and miscibility gap concentration regions were calculated. VD-AS model excellently describes pre-delamination or micro-heterogeneous-structure formation in the considered solutions. These calculations are confirmed by the dynamic light scattering data.
Ключевые слова:
fullerenol $\mathrm{C}_{60}\mathrm{(OH)}_{24}$, water solutions, cryometry, excess functions, delamination.
Поступила в редакцию: 19.01.2020 Исправленный вариант: 01.03.2020
Образец цитирования:
N. A. Charykov, K. N. Semenov, V. A. Keskinov, N. A. Kulenova, Z. K. Shaimardanov, B. K. Shaimardanova, L. V. Gerasimova, Ayat Kanbar, D. G. Letenko, “Cryometry and excess thermodynamic functions in water soluble of the fullerenol C$_{60}$(OH)$_{24}$”, Наносистемы: физика, химия, математика, 11:2 (2020), 205–213
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/nano516 https://www.mathnet.ru/rus/nano/v11/i2/p205
|
Статистика просмотров: |
Страница аннотации: | 99 | PDF полного текста: | 23 |
|