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Title: Thickness of electrolyte layers on emersed Pt electrodes

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Lawrence Berkeley Laboratory, Materials and Molecular Research Division, Berkeley, California
OSTI Identifier:
5488924
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Journal Article
Journal Name:
J. Electrochem. Soc.; (United States)
Additional Journal Information:
Journal Volume: 130:8
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 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; 300505* - Fuel Cells- Electrochemistry, Mass Transfer & Thermodynamics; 400400 - Electrochemistry

Citation Formats

Wagner, F T, and Ross, P N. Thickness of electrolyte layers on emersed Pt electrodes. United States: N. p., 1983. Web. doi:10.1149/1.2120097.
Wagner, F T, & Ross, P N. Thickness of electrolyte layers on emersed Pt electrodes. United States. doi:10.1149/1.2120097.
Wagner, F T, and Ross, P N. Mon . "Thickness of electrolyte layers on emersed Pt electrodes". United States. doi:10.1149/1.2120097.
@article{osti_5488924,
title = {Thickness of electrolyte layers on emersed Pt electrodes},
author = {Wagner, F T and Ross, P N},
abstractNote = {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.},
doi = {10.1149/1.2120097},
journal = {J. Electrochem. Soc.; (United States)},
number = ,
volume = 130:8,
place = {United States},
year = {1983},
month = {8}
}