A Beaker without Walls: Formation of Deeply Supercooled Binary Liquid Solutions of Alcohols from Nanoscale Amorphous Solid Films

Journal Article · Mon Jun 17 00:00:00 EDT 2002 · Physical Review Letters, 88(24):art. no. 245505

DOI:https://doi.org/10.1103/PhysRevLett.88.245505· OSTI ID:15001600

Ayotte, Patrick; Smith, R Scott; Teeter, Glenn R; Dohnalek, Zdenek; Kimmel, Greg A; Kay, Bruce D

Layered nanoscale amorphous solid films of methoanol and ethanol undergo complete intermixing prior to the onset of measurable desorption at 120 K. This intermixing precedes and inhibits crystallization. Subsequent desorption of the film is described quantitatively by a kinetic model describing evaporation from a continuously remixing ideal binary liquid solution. This occurs at temperatures below the melting point of the binary mixture indicating ideal behavior for the supercooled liquid solution. This approach provides a new method for preparing and examining deeply-supercooled solutions.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 15001600
• Report Number(s): PNNL-SA-35559; KC0301020; TRN: US200406%%82
• Journal Information: Physical Review Letters, 88(24):art. no. 245505, Vol. 88, Issue 24
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
ALCOHOLS
BINARY MIXTURES
CRYSTALLIZATION
DESORPTION
ETHANOL
EVAPORATION
KINETICS
MELTING POINTS
METHANOL