(19)
(11) EP 0 390 157 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.04.1991 Bulletin 1991/16

(43) Date of publication A2:
03.10.1990 Bulletin 1990/40

(21) Application number: 90106050.9

(22) Date of filing: 29.03.1990
(51) International Patent Classification (IPC)5: C25B 3/04, C25B 11/06
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 31.03.1989 US 331464

(71) Applicant: UNITED TECHNOLOGIES CORPORATION
Hartford, CT 06101 (US)

(72) Inventor:
  • Molter, Trent M.
    Enfield, CT 06082 (US)

(74) Representative: Klunker . Schmitt-Nilson . Hirsch 
Winzererstrasse 106
80797 München
80797 München (DE)


(56) References cited: : 
   
       


    (54) Electrolysis cell and method of use


    (57) The present invention discloses an improved solid polymer electrolysis cell (2) for the reduction of carbon dioxide. The improvement being the use of a cathode (6) having a metal phthalocyanine catalyst which results in the suppression of the formation of hydrogen during the reduction process and the subsequent improved conversion efficiency for carbon dioxide.






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