FUEL CELL ELECTRODE CATALYST LAYER COATING

The invention relates to a fuel cell electrode catalyst layer coating. A fuel cell comprises first and second electrode catalyst layers and a polymer electrolyte membrane (PEM) situated therebetween.A graphene-based material coated onto a first and/or second surface of the first and/or second electrode catalyst layers. The graphene-based material has a number of defects including a number of quad-vacancy (QV) defects formed by a vacancy of four adjacent carbon atoms in the graphene-based material. The number of QV defects are configured to mitigate dissolution of the first and/or second catalyst materials through the first and/or second surface of the first and/or second electrode catalyst layers. 本发明涉及燃料电池电极催化剂层涂层。燃料电池包括第一和第二电极催化剂层和位于它们之间的聚合物电解质膜(PEM)以及涂覆到第一和/或第二电极催化剂层的第一和/或第二表面上的石墨烯基材料。所述石墨烯基材料具有若干缺陷，所述若干缺陷包括若干由石墨烯基材料中的至少四个相邻碳原子的空位形成的四空位(QV)缺陷。所述若干QV缺陷配置为减轻第一和/或第二催化剂材料经过第一和/或第二电极催化剂层的第一和/或第二表面的溶出。