ADSORPTION-ISOTHERMS AND INFRARED-SPECTROSCOPY STUDY OF NITROGEN CONDENSED IN POROUS GLASSES

Authors
WALLACHER D HUBER P KNORR K
Citation
D. Wallacher et al., ADSORPTION-ISOTHERMS AND INFRARED-SPECTROSCOPY STUDY OF NITROGEN CONDENSED IN POROUS GLASSES, Journal of low temperature physics, 113(1-2), 1998, pp. 19-29
Citations number
27
Categorie Soggetti
Physics, Applied
Journal title
Journal of low temperature physics → ACNP
ISSN journal
00222291
Volume
113
Issue
1-2
Year of publication
1998
Pages
19 - 29
Database
ISI
SICI code
0022-2291(1998)113:1-2<19:AAISON>2.0.ZU;2-L
Abstract
Nitrogen has been condensed into Vycor glass and three controlled pore glasses with pore diameters in the nm-range. Adsorption isotherms at 77K have been studied. The induced infrared activity of the N-N stretc hing vibration has been investigated as function of temperature and fi ling fraction. Molecules in the first monolayer next to the pore, wall s can be discriminated from those in the second monolayer, whereas mol ecules in the center of the poles remain infrared inactive.