| 摘要 |
PROBLEM TO BE SOLVED: To stabilize operation at low cost by suppressing poisoning of a catalyst bed caused by CO2 and CO, and by facilitating control of moisture in an electrolyte layer by means of a simple structure. SOLUTION: On each of both principal surfaces of a thin film electrolyte layer 1A, a cathode side catalyst layer 2 and an anode side catalyst layer 3A, both of which are made of carbon powder carrying platinum, are placed. In addition, on the outside surface of the anode side catalyst layer 3A, a separation layer 4 composed of a palladium metal thin film is placed. Thereafter a cathode diffusion layer 5 and an anode diffusion layer 6 are placed on the outside surfaces of them, respectively; thus, a film electrode complex has been so structured that only hydrogen can be selected properly out of a fuel gas through it and delivered to the anode side catalyst layer 3A. |
