Catalyst for resisting aging of proton exchange membrane and preparation method thereof

The invention relates to a catalyst for resisting aging of a proton exchange membrane. The catalyst for resisting aging of the proton exchange membrane comprises a Pt/C catalyst, an ionic polymer; and a TEMPO reagent, wherein the TEMPO reagent is at least one reagent selected from TEMPO or a TEMPO derivative. According to the catalyst for resisting aging of the proton exchange membrane, the TEMPO reagent is added into the catalyst, when the catalyst serves as a catalyst layer of a proton exchange membrane fuel cell, the catalyst makes direct contact with the proton exchange membrane, the TEMPO reagent can be effectively combined with hydroxyl radicals, and damage of the hydroxyl radicals to the proton exchange membrane is reduced. 本申请涉及一种抗质子交换膜老化的催化剂，所述抗质子交换膜老化的催化剂包括：Pt/C催化剂；离子聚合物；TEMPO类试剂，所述TEMPO类试剂为TEMPO或TEMPO衍生物中的至少一种试剂。本申请提供的抗质子交换膜老化的催化剂，通过在催化剂中加入TEMPO类试剂，该催化剂作为质子交换膜燃料电池催化层时，与质子交换膜直接接触，其中的TEMPO类试剂可以有效地与羟基自由基结合，减少羟基自由基对质子交换膜的破坏。