Isothermal ramped field-desorption of water from metal surfaces

Journal Article · Wed Jul 15 00:00:00 EDT 1992 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.351860· OSTI ID:7281587

Stintz, A; Panitz, J A ^[1]

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1. Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States)

It is shown that water vapor deposited onto metal surfaces between 80 and 130 K can be isothermally desorbed by applying a ramped electric field. At a ramp rate of {similar to}1 MV/cm/s the desorption field strength for physisorbed layers of amorphous ice on tungsten and iridium surfaces is {similar to}80 MV/cm. As the ice layers desorb in the presence of the high electric field, positive ions are formed which are detected. During this process, the ice exhibits properties of an electrical conductor or a semiconductor.

• DOE Contract Number: FG04-88ER45348
• OSTI ID: 7281587
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 72:2; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AMORPHOUS STATE
DESORPTION
ELECTRIC FIELDS
ELEMENTS
EMISSION
HYDROGEN COMPOUNDS
ICE
ION EMISSION
IRIDIUM
ISOTHERMAL PROCESSES
METALS
OXYGEN COMPOUNDS
PLATINUM METALS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSITION ELEMENTS
TUNGSTEN
WATER