| abstract |
PROBLEM TO BE SOLVED: To provide an electrode provided with a new catalytic substance which can be used for, for example, a metal-air battery, has excellent redox activity, and can be flexibly designed. An electrode according to the present invention includes a first catalyst containing an iron element and a second catalyst containing a cobalt element and / or a nickel element, and the first catalyst and the second catalyst are separated from each other. Is placed. It is preferable that the first catalyst and the second catalyst are used by being immersed in a common electrolyte solution. [Selection diagram] Fig. 3 |