Zipeng Zhao1

1, University of California, Los Angeles, Los Angeles, California, United States

Platinum-nickel (Pt-Ni) octahedral based nanomaterials represent an emerging class of highly active electrochemical catalysts, but can not meet the increasing activity demand for broad application and suffer from stability issue. We introduced Cu into octahedral Pt-Ni with controlled morphology. The octahedral Pt-Ni-Cu shows significantly enhanced activity and stability compared to octahedral Pt-Ni catalysts for cathode oxygen reduction reaction (ORR) , which is demonstrated to be a potential electrochemical catalyst. Computational simulation confirmed that the presence of Cu can improve the transition metal (Ni and Cu) retention thus improve both activity and stability.