| 主权项 |
1. A method for producing an alcohol using a device for reducing carbon dioxide by light energy, the method comprising the steps of:
(a) preparing the device for reducing carbon dioxide, the device including a cathode chamber, an anode chamber, and a proton conducting membrane, wherein
the cathode chamber contains a cathode electrode,the cathode electrode includes copper or a copper compound,the anode chamber contains an anode electrode,the anode electrode includes a region including a nitride semiconductor layer in which an AlxGa1-xN layer (0<x≦1) and a GaN layer are laminated,a first electrolytic solution consisting of an aqueous potassium chloride solution (aqueous KCl solution) is contained in the cathode chamber,a second electrolytic solution including an aqueous sodium hydroxide solution (aqueous NaOH solution) is contained in the anode chamber,the cathode electrode is in contact with the first electrolytic solution,the anode electrode is in contact with the second electrolytic solution,the proton conducting membrane is interposed between the cathode chamber and the anode chamber,the first electrolytic solution contains carbon dioxide,the cathode electrode is electrically connected to the anode electrode, anda power source that is electrically connected to the cathode electrode and the anode electrode is not provided between the cathode electrode and the anode electrode; and (b) irradiating the anode electrode with light having a wavelength of 360 nm or less so as to reduce, at the cathode electrode, the carbon dioxide contained in the first electrolytic solution and to produce the alcohol. |
