ACID-BASE REACTION CATALYST, GAS DIFFUSION ELECTRODE, AND CO2 PERMEABLE DEVICE
Provided is an acid-base reaction catalyst that can be suitably used in a heterogeneous system such as a gas-liquid interface, and which has a high catalytic performance. This acid-base reaction catalyst comprises a supporting body and a metal complex supported by the supporting body. The metal complex comprises metal and a ligand coordinated in the metal. The ligand has an sp3 structural nitrogen.