Doppler Spectroscopy of Near-critical Carbon Dioxide in Free Volume and Nanopores

2007, №3

сс. 81-97

V.N. Bagratashvili, K.P. Bestemyanov, V.M. Gordienko, M.V. Kondratyev, A.N. Konovalov, V.K. Popov

Key words: critical point, phase transition, nanopores materials, optical heterodyning, critical opalescence

The comparative study of optical properties of near-critical carbon dioxide in free volume and in nanopores is performed by optical heterodyning of laser light back-scattering. The universal [(Т - Т_с)/Т_с]^0,63 law for temperature dependence of scattering spectral width is obtained for C0₂ in free volume, while for C0₂ in nanopores of aerogel and Vycor glass the significant change of scattering parameters is revealed. No alteration in the critical temperature of C0₂ (detected by the maximum of dynamic scattering) is found in nanopores relative to free volume; the latter is explained by the effect of adsorbed CO₂ layer on the nanopore surface.

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ГОСТ
7.0.100-2018

Баграташвили, В.Н. Doppler Spectroscopy of Near-critical Carbon Dioxide in Free Volume and Nanopores / В.Н. Баграташвили, К.П. Бестемьянов, В.М. Гордиенко [и др.]. – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2007. – Т. 2. – № 3. – С. 81-97.

TRANSLIT

I., V. Dopplerovskaya spektroskopiya okolokriticheskogo SO2 v svobodnom ob"eme inanoporah / V. I. Bagratashvili , K. P. Bestem'yanov, V.M. Gordienko [i dr.]. – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2007. – Т. 2. – № 3. – S. 81-97.

V.N. Bagratashvili, K.P. Bestemyanov, V.M. Gordienko, M.V. Kondratyev, A.N. Konovalov, V.K. Popov Doppler Spectroscopy of Near-critical Carbon Dioxide in Free Volume and Nanopores. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 3, 81-97 (2007). https://doi.org/

Doppler Spectroscopy of Near-critical Carbon Dioxide in Free Volume and Nanopores

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