| abstract |
PROBLEM TO BE SOLVED: To provide a fuel cell capable of realizing a reaction environment capable of sufficiently exhibiting excellent electrode characteristics, a method for using the same, a cathode electrode for a fuel cell, an electrode reaction utilization device, and an electrode reaction utilization device electrode. . SOLUTION: In a fuel cell 10 in which an electrolyte solution 7 is sandwiched between a cathode electrode 1 and an anode electrode 5, the cathode electrode 1 is composed of a porous material such as carbon and an enzyme immobilized thereon. At least a portion of which is in contact with the gas phase reaction substrate. In addition to the enzyme, an electron transfer mediator is also preferably fixed to the cathode electrode 1. For example, air or oxygen is used as the reaction substrate in the gas phase. [Selection] Figure 1 |