Rotating ring-disk electrode study of competitive photo-oxidation at. cap alpha. -Fe/sub 2/O/sub 3/ photoanodes in aqueous solution
Journal Article
·
· J. Electrochem. Soc.; (United States)
Competition reactions at ..cap alpha..-Fe/sub 2/O/sub 3/ photoanodes were studied using the RRDE technique. It was found that iodide, bromide, and chloride ions were photo-oxidized in preference to water in acidic solutions. The competition ratio was measured as a function of halide-ion concentration, halide-ion flux, light intensity, electrode potential, and solution pH. A direct correlation between the disk photocurrent and the competition ratio at a given halide flux was demonstrated. A lack in selectivity for the dark current was also observed.
- Research Organization:
- Department of Chemistry, University of California, Santa Barbara, California
- OSTI ID:
- 6355659
- Journal Information:
- J. Electrochem. Soc.; (United States), Vol. 131:7
- Country of Publication:
- United States
- Language:
- English
Similar Records
Competition reactions at. cap alpha. -Fe/sub 2/O/sub 3/ photoanodes
Competitive photoelectrochemical processes as studied by in situ photocalorimetry. Competition between the photoanodic oxidation of a solute (Cl sup minus , Br sup minus , H sub 2 O sub 2 , SO sub 3 sup 2 minus ) and that of water at some n-type TiO sub 2 electrodes
cap alpha. -Fe/sub 2/O/sub 3/ photoanodes doped with silicon
Journal Article
·
Fri Apr 01 00:00:00 EST 1983
· J. Electrochem. Soc.; (United States)
·
OSTI ID:6355659
Competitive photoelectrochemical processes as studied by in situ photocalorimetry. Competition between the photoanodic oxidation of a solute (Cl sup minus , Br sup minus , H sub 2 O sub 2 , SO sub 3 sup 2 minus ) and that of water at some n-type TiO sub 2 electrodes
Journal Article
·
Thu Sep 20 00:00:00 EDT 1990
· Journal of Physical Chemistry; (USA)
·
OSTI ID:6355659
cap alpha. -Fe/sub 2/O/sub 3/ photoanodes doped with silicon
Journal Article
·
Wed Oct 01 00:00:00 EDT 1980
· J. Electrochem. Soc.; (United States)
·
OSTI ID:6355659
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
IRON OXIDES
OXIDATION
AQUEOUS SOLUTIONS
BROMIDES
CHLORIDES
HALIDES
IODIDES
PHOTOANODES
PHOTOCHEMISTRY
ANODES
BROMINE COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CHLORINE COMPOUNDS
DISPERSIONS
ELECTRODES
HALOGEN COMPOUNDS
IODINE COMPOUNDS
IRON COMPOUNDS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS
400500* - Photochemistry
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
IRON OXIDES
OXIDATION
AQUEOUS SOLUTIONS
BROMIDES
CHLORIDES
HALIDES
IODIDES
PHOTOANODES
PHOTOCHEMISTRY
ANODES
BROMINE COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CHLORINE COMPOUNDS
DISPERSIONS
ELECTRODES
HALOGEN COMPOUNDS
IODINE COMPOUNDS
IRON COMPOUNDS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS
400500* - Photochemistry