Title:
METHOD FOR REDUCING CARBON DIOXIDE
Document Type and Number:
WIPO Patent Application WO/2012/120571
Kind Code:
A1
Abstract:
A method of the present invention comprises the following steps: a step (a) for preparing a device, which is provided with a cathode chamber (102), an anode chamber (105) and a solid electrolyte membrane (106), and wherein the cathode chamber is provided with a cathode electrode (101), the anode chamber is provided with an anode electrode (104), the anode electrode comprises a nitride semiconductor region (302), a part of the surface of the nitride semiconductor region is covered with a nickel or titanium region (303), the region (303) is in contact with the nitride semiconductor region, the cathode chamber holds a first electrolyte solution (107), the anode chamber holds a second electrolyte solution (108), the cathode electrode is in contact with the first electrolyte solution, the anode electrode is in contact with the second electrolyte solution, the first electrolyte solution contains carbon dioxide, the cathode electrode is electrically connected to the anode electrode, the anode electrode comprises an anode electrode terminal (111), and the region (303) is separated from the anode electrode terminal; and a step (b) for reducing the carbon dioxide in the first electrolyte solution by irradiating at least a part of the nitride semiconductor region with light having a wavelength from 250 nm to 400 nm (inclusive), while also irradiating the region (303) with the light.
Inventors:
DEGUCHI MASAHIRO
YOTSUHASHI SATOSHI
YAMADA YUKA
YOTSUHASHI SATOSHI
YAMADA YUKA
Application Number:
PCT/JP2011/005345
Publication Date:
September 13, 2012
Filing Date:
September 22, 2011
Export Citation:
Assignee:
PANASONIC CORP (JP)
DEGUCHI MASAHIRO
YOTSUHASHI SATOSHI
YAMADA YUKA
DEGUCHI MASAHIRO
YOTSUHASHI SATOSHI
YAMADA YUKA
International Classes:
C25B5/00; B01J35/02; C01B32/40; C01B32/50; C07C1/12; C07C9/04; C07C53/02; C25B3/25
Foreign References:
| JPH0559562A | 1993-03-09 | |||
| JPS50115178A | 1975-09-09 | |||
| JP2009255013A | 2009-11-05 | |||
| JP2007260667A | 2007-10-11 | |||
| JP2007107043A | 2007-04-26 | |||
| JPH06158374A | 1994-06-07 |
Other References:
HORI YOSHIO ET AL.: "PRODUCTION OF CO AND CH4 IN ELECTROCHEMICAL REDUCTION OF C02 AT METAL ELECTRODES IN AQUEOUS HYDROGENCARBONATE SOLUTION", CHEMISTRY LETTERS, 1985, pages 1695 - 1698
Attorney, Agent or Firm:
KAMADA, Koichi et al. (JP)
Koichi Kamata (JP)
Koichi Kamata (JP)
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Claims: