LAUSR

In the purpose of maximizing the utilization of noble metal Pt in oxygen reduction catalysts, we illustrate a synthesis method of preparing the low‐platinum PtNi/C alloyed oxygen reduction reaction (ORR) catalyst, which is developed through the H2‐induced treatment to a glucose reduced PtNi/C alloy. After post‐treatment with H2/N2 mixture gases, this catalyst displays excellent ORR catalytic activity and durability for the synergetic influences of electronic and geometry effects on catalysts during the alloying. Specifically, the as‐prepared PtNi/C (350°C‐6 h) sample delivers preponderant ORR activity with only 53.5% Pt usage than the commercial Pt/C. The specific activity and mass activity are corresponding 7.49 times and 3.5 times to the commercial Pt/C. This catalyst exhibits excellent ORR catalytic activity after 10 000 potential cycles in acid, which benefits from the well alloyed core‐shell structure of PtNi/C. H2‐induced thermal treatment has significant effects on the development of high performance low‐platinum PtNi/C alloy catalyst, and plays the significant role in the formation of well‐alloyed core‐shell structures. The lowered d‐band center is believed to facilitate ORR catalysis through weakening the adsorption of intermediate oxygen species on the alloyed Pt surface. Therefore, PtNi/C(350°C‐6 h) alloyed catalyst possesses outstanding ORR catalytic activity with much lower Pt loading.