“…As such, they are well suited for AEM electrolyzer applications. Until now, only a few OER catalysts [10,12,26,27] such as Cu 0.7 Co 2.3 O 4 , NiFe-LDH, NiFe 2 O 4 , CuCoO 3 and Co 3 O 4 , and a few HER catalysts [11,26,27] such as NiFeCo, Ni, and Ni/(CeO 2 -La 2 O 3 )/C have been applied in AEM electrolyzers (Table S6, Supporting Information). The performance of such systems remains modest.…”