“…24 Trimetallic catalysts remain attractive for improving the electrocatalytic EOR and EGOR performance compared to bimetallic counterparts, such as PdBiMn, Pd x Ru y Ni z , PdPbBi, PdAuAg nanocages, and pinecone-like PdAuAg. [25][26][27][28][29] Therefore, fabrication of trimetallic nanomaterials with special structures will help to investigate the structure-activity relationship. Various strategies have been proposed to design trimetallic electrocatalysts, such as shape-controlled synthesis, defect engineering, surface modification, and so on.…”