A nanoscale gas state

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/206135

Title: A nanoscale gas state
Author(s): Zhang, Xue H.; Khan, Abbas; Ducker, William A.
Abstract: We show that a very thin (5-80 nm) gas phase can exist for a long time (>1 h) at the interface between a hydrophobic solid and water. We create the gas phase from CO2, which allows us to determine the chemical identity, phase state, and density via infrared spectroscopy. The average density reveals that the gas is at approximately atmospheric pressure, which explains the unexpectedly long lifetime of the gas phase under ambient conditions. The nanoscale gas phase is reproducibly created under conditions where gas solubility is varied.
Publication type: Journal article
Source: Physical Review Letters, Vol. 98, no. 13 (Mar 2007), article no. 136101
Publication year: 2007
FOR Code(s): 02 Physical Sciences
Keyword(s): Atmospheric pressure; Carrier concentration; Gas dynamics; Gas phase; Gas solubility; Hydrophobicity; Interfaces (computer); Nanostructured materials; Phase state; Solubility
Publisher: American Physical Society
ISSN: 0031-9007
Publisher URL: http://dx.doi.org/10.1103/PhysRevLett.98.136101
Peer reviewed