A laser analyzer of the kinetics of interaction of water molecules with an adsorbent

V. G. Artemov, P. O. Kapralov, D. M. Kurmasheva, V. I. Tikhonov, A. A. Volkov

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A device for recording high-speed processes of water-vapor sorption at the surfaces of porous materials is described. The water-vapor pressure over a sample is measured during the sorption process by registering the integral intensity of the absorption line of H2O molecules at a wavelength of 1.85 μm. The kinetic curves of changes in the partial pressure (concentration of H2O molecules) from 1 mTorr to 20 Torr are recorded in a time range from 1 ms to 24 h with an accuracy better than 1% at buffer-gas concentrations of 0-760 Torr. The obtained data are used to determine the sorption and structural parameters of investigated materials.

Original languageEnglish
Pages (from-to)602-606
Number of pages5
JournalInstruments and Experimental Techniques
Volume56
Issue number5
DOIs
Publication statusPublished - Sep 2013
Externally publishedYes

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