Thickness of electrolyte layers on emersed Pt electrodes
This paper examines an electrochemical cell designed to allow the clean transfer of an electrode to a ultra-high vacuum surface analytical chamber. Determines the order of magnitude of the thickness of electrolyte remaining on the surface after emersion by using quantitative Auger electron spectroscopy (AES) applied to the non-volatile sodium residue from a HF-NaF aqueous electrolyte. Finds that no fluorine Auger signals were observed on properly emersed electrodes; higher levels of sodium and sometimes fluorine were observed in the capillary separation spot or when improper draining left visible droplets in the interelectrode gap; and attempts to emerse the crystal by dropping the counter-reference assembly vertically away from it left larger electrolyte drops on the surface.
- Research Organization:
- Lawrence Berkeley Laboratory, Materials and Molecular Research Division, Berkeley, California
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5488924
- Journal Information:
- J. Electrochem. Soc.; (United States), Vol. 130:8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ELECTRODES
ULTRAHIGH VACUUM
ELECTROLYTES
AUGER ELECTRON SPECTROSCOPY
THICKNESS
AQUEOUS SOLUTIONS
CRYSTALS
DROPLETS
ELECTROCHEMICAL CELLS
HYDROFLUORIC ACID
LAYERS
SIGNALS
SODIUM FLUORIDES
SURFACES
ALKALI METAL COMPOUNDS
DIMENSIONS
DISPERSIONS
ELECTRON SPECTROSCOPY
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MIXTURES
PARTICLES
SODIUM COMPOUNDS
SOLUTIONS
SPECTROSCOPY
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