Method for reducing carbon dioxide
AssigneePanasonic Corporation
InventorsMasahiro Deguchi, Satoshi Yotsuhashi, Yuka Yamada, Kazuhiro Ohkawa
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Abstract
A method for reducing carbon dioxide utilizes a carbon dioxide reduction device including a cathode chamber, an anode chamber, a solid electrolyte membrane, a cathode electrode and anode electrode. The cathode electrode includes copper or copper compound. The anode electrode includes a region formed of a nitride semiconductor layer where an AlxGa1-xN (0<x≦1) layer and a GaN layer are stacked. The anode electrode is irradiated with a light having a wavelength of not more than 350 nanometers to reduce the carbon dioxide on the cathode electrode.
Claims13
A method for reducing carbon dioxide using a carbon dioxide reduction device, the method comprising steps of:
- (a) preparing the carbon dioxide reduction device comprising:
- a cathode chamber;
- an anode chamber;
- a solid electrolyte membrane;
- a cathode electrode;
- and
- an anode electrode, wherein:
- the cathode electrode comprises copper or copper compound on the surface thereof, the anode electrode comprises a region formed of a nitride semiconductor layer on the surface thereof,
- an AlxGa1-xN layer (0<x≦1) and a GaN layer are stacked in the nitride semiconductor layer,
- a first electrolytic solution is stored in the cathode chamber,
- a second electrolytic solution is stored in the anode chamber,
- the cathode electrode is in contact with the first electrolyte solution,
- the anode electrode is in contact with the second electrolyte solution,
- the solid electrolyte membrane is interposed between the cathode chamber and the anode chamber,
- the first electrolytic solution contains the carbon dioxide, and
- the cathode electrode is connected to the anode electrode electrically;
- and
- (b) irradiating the anode electrode with a light having a wavelength of not more than 350 nanometers to reduce the carbon dioxide contained in the first electrolytic solution on the cathode electrode.
A method for reducing carbon dioxide using a carbon dioxide reduction device, the method comprising steps of:
- (a) preparing the carbon dioxide reduction device including
- a cathode electrode in contact with a first electrolyte solution;
- and
- an anode electrode in contact with a second electrolyte solution;
- and
- (b) irradiating the anode electrode with a light having a wavelength of not more than 350 nanometers to reduce carbon dioxide contained in the first electrolytic solution on the cathode electrode, wherein:
- the cathode electrode comprises copper or copper compound on the surface thereof, and
- the anode electrode comprises a region formed of a nitride semiconductor layer including stacked layers of an AlxGa1-xN layer (0<x≦1) and a GaN layer.
Dependencies are inferred from the claim text.