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Title: Interaction of alkanes with an amorphous methanol film at 15-180 K

Abstract

The hydrogen-bond imperfections and glass-liquid transition of the amorphous methanol film have been investigated on the basis of the film dewetting and the incorporation/desorption of alkane molecules adsorbed on the surface. The butane is incorporated completely in the bulk of the porous methanol film up to 70 K. At least two distinct states exist for the incorporated butane; one is assignable to solvated molecules in the bulk and the other is weakly bound species at the surface or in the subsurface site. For the nonporous methanol film, the uptake of butane in the bulk is quenched but butane forms a surface complex with methanol above 80 K. The butane incorporated in the bulk of the glassy methanol film is released at 120 K, where dewetting of the methanol film occurs simultaneously due to evolution of the supercooled liquid phase.

Authors:
 [1]
  1. Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
Publication Date:
OSTI Identifier:
20719535
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 72; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevB.72.115414; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; BUTANE; CHEMICAL BONDS; DESORPTION; FILMS; GLASS; LAYERS; LIQUIDS; MASS SPECTRA; METHANOL; MOLECULES; PHASE TRANSFORMATIONS; POROUS MATERIALS; SOLVATION; SURFACES; TEMPERATURE DEPENDENCE; TIME-OF-FLIGHT METHOD

Citation Formats

Souda, Ryutaro. Interaction of alkanes with an amorphous methanol film at 15-180 K. United States: N. p., 2005. Web. doi:10.1103/PhysRevB.72.115414.
Souda, Ryutaro. Interaction of alkanes with an amorphous methanol film at 15-180 K. United States. doi:10.1103/PhysRevB.72.115414.
Souda, Ryutaro. Thu . "Interaction of alkanes with an amorphous methanol film at 15-180 K". United States. doi:10.1103/PhysRevB.72.115414.
@article{osti_20719535,
title = {Interaction of alkanes with an amorphous methanol film at 15-180 K},
author = {Souda, Ryutaro},
abstractNote = {The hydrogen-bond imperfections and glass-liquid transition of the amorphous methanol film have been investigated on the basis of the film dewetting and the incorporation/desorption of alkane molecules adsorbed on the surface. The butane is incorporated completely in the bulk of the porous methanol film up to 70 K. At least two distinct states exist for the incorporated butane; one is assignable to solvated molecules in the bulk and the other is weakly bound species at the surface or in the subsurface site. For the nonporous methanol film, the uptake of butane in the bulk is quenched but butane forms a surface complex with methanol above 80 K. The butane incorporated in the bulk of the glassy methanol film is released at 120 K, where dewetting of the methanol film occurs simultaneously due to evolution of the supercooled liquid phase.},
doi = {10.1103/PhysRevB.72.115414},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 11,
volume = 72,
place = {United States},
year = {2005},
month = {9}
}