Modified titanium dioxide photoactive electrodes

Details Modified titanium dioxide photoactive electrodes Modified titanium dioxide photoactive electrodes

1978-06-22

1980-01-01

Esposito, Michael F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

429111, 427 74, 427126, C25B 1110, C25B 1104

Patent

active

041815939

ABSTRACT:
Photoactive titanium dioxide based semiconductor electrodes utilizable in photoassisted oxidation reactions in an electrochemical cell comprise thin films of polycrystalline titanium dioxide modified with one or more materials consisting of oxides of aluminum or of a d-electron transition metal other than titanium. Oxides in which the metal is in a chemical oxidation state other than +4, which possess some solid state solubility in titanium dioxide, and an impurity energy level band lying within the energy band gap of titanium dioxide function effectively as modifiers.
The electrode comprises a uniform film of titanium dioxide mixed with up to 50 mole percent of the modifier sintered to a suitable metal body. In an alternative embodiment of the invention, the electrode comprises a film of titanium dioxide sintered to a titanium metal body with the modifier distributed throughout the titanium dioxide film with a concentration gradient having a minimum next to the surface of the metal body.

REFERENCES:
patent: 3259558 (1966-07-01), Hagiwara
patent: 3681133 (1972-08-01), Dantro
patent: 3948751 (1976-04-01), Bianchi
patent: 3975557 (1976-08-01), Kuchek
patent: 4003817 (1977-01-01), Bianchi
patent: 4025669 (1977-05-01), Greenstan
patent: 4040918 (1977-08-01), Johnson
patent: 4070504 (1978-01-01), Bianchi
patent: 4086157 (1978-04-01), Koziol
Augustynski, J. Electrochemical Soc. vol. 124, No. 7 (7-1977) Novel . . . Water pp. 1063-1064.
Kennedy, J. Electrochem. Soc. vol. 125 (5-1978) No. 5, Photo-oxidation . . . Electrodes, pp. 709-714.
Kennedy, J. Electrochem. Soc., vol. 125, No. 5 (5-1978). Flatband . . . Plot, pp. 723-726.
Haneman, J. Electrochemical Soc., vol. 124, No. 6 (6-1977) Electrochemical . . . Fe.sub.2 O.sub.3 pp. 861-862.

Affiliated with

Also associated with

Rating

Modified titanium dioxide photoactive electrodes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modified titanium dioxide photoactive electrodes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modified titanium dioxide photoactive electrodes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2118989