Proton conducting material, and electrode and fuel cell using the same

摘要

To provide a proton conducting material with which an electrode and a fuel cell capable of functioning in a stable manner even without humidification in a temperature range from room temperature to about 200° C. can be achieved. The proton conducting material includes a porous structural material having pores and a heterocyclic organic compound having proton conductivity. The organic compound contained inside the pores has a crystallite size D of 50 nm or less.