A membrane-electrode assembly for a solid polymer electrolyte fuel cell is provided that uses a proton conductive membrane having high proton conductivity and also superior heat resistance and chemical durability. A membrane-electrode assembly for a solid polymer electrolyte fuel cell is provided with an anode on one side of a proton conductive membrane and a cathode on another side thereof, and the proton conductive membrane is a sulfonated polyarylene containing a structure expressed by the general formula (1) below:
—R
s
—Z—R
h
(1)
In the formula (1), Z represents at least one structure selected from the group consisting of —CO—, —SO
2
—, and —SO—; R
s
represents a direct bond or any divalent organic group; and R
h
represents a nitrogen-containing heterocyclic group.
提供一种用于固体聚合物电解质燃料电池的膜电极组件,该组件使用具有高质子传导性、优异耐热性和
化学耐久性的质子传导膜。该固体聚合物电解质燃料电池的膜电极组件,在质子传导膜的一侧具有阳极,在另一侧具有阴极,而质子传导膜是一种含有以下通式(1)所表示结构的磺化聚
芳烃:—Rs—Z—Rh(1)其中,在式(1)中,Z表示选自—CO—、—SO2—和—SO—的至少一种结构;Rs表示直接键或任何二价有机基团;而Rh表示含氮杂环基团。