Characterization of low oxidation states of tungsten and tungsten electrodes in AlCl/sub 3/-NaCl melts by X-Ray photoelectron spectroscopy

Journal Article · Wed May 01 04:00:00 EDT 1985 · J. Electrochem. Soc.; (United States)

OSTI ID:6494947

The ultimate products of the electroreduction of WCl/sub 6/ in acidic AlCl/sub 3//sup -/NaCl melts at tungsten and platinum electrodes were investigated by x-ray photoelectron spectroscopy (XPS). The XPS analysis reveals the presence of tungsten species, having formal oxidation state between 0 and +2, on electrode surfaces. Evidence for the formation of metallic tungsten at platinum electrodes was also obtained. An XPS study performed on tungsten electrodes electrolyzed in acidic chloroaluminates at the chlorine evolution potential revealed no protective polymeric tungsten chloride film.

• Research Organization: Department of Chemistry, University of Tennessee, Knoxville, Tennessee
• OSTI ID: 6494947
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 032:5; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALUMINIUM CHLORIDES
ALUMINIUM COMPOUNDS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COATINGS
ELECTRODES
ELECTROLYSIS
ELECTRON SPECTROSCOPY
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
KINETICS
LYSIS
METALS
OXIDATION
PHOTOELECTRON SPECTROSCOPY
PLATINUM
PLATINUM METALS
PROTECTIVE COATINGS
REACTION KINETICS
REDUCTION
REFRACTORY METAL COMPOUNDS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN
TUNGSTEN CHLORIDES
TUNGSTEN COMPOUNDS
VALENCE
X-RAY SPECTROSCOPY