摘要： Controlling the morphology of Pt nanostructures can provide a great opportunity to improve their catalytic properties. In this study, highly effective Pt and PtM (M=Au, Pd, or Cu) nanorods (NRs) are prepared by formic acid method for their oxygen reduction reaction (ORR). The number of unoccupied d-state (hTs) results show that PtCu and PtPd NRs have lower unfilled Pt d-states, indicating more d-band electron transfer from the metal to Pt and a decrease of the adsorption strength of oxygenated adsorbates. Besides, after accelerated durability test (ADT) of 1000cycles, the mass activity of PtCu NRs is nearly 2.2 times higher than that of commercial Pt/C. Thus, the promotional effect of PtCu NRs can be attributed to the 1-D morphology and low unoccupied d-states, favorably enhancing the ORR performance. •PtCu NRs have low unfilled Pt d-states, indicating high ORR activity.•After ADT, PtCu NRs display a mass activity ~2.2 times higher than that of Pt/C.•The enhanced ORR durability of PtCu NRs can be attributed to the 1-D morphology. 出版者： Lausanne: Elsevier B.V 出版日期： 2013-06-01 出處： Electrochemistry communications, 2013-06, Vol.31, p.125-128 資源來源： ScienceDirect 版權： 2013 Elsevier B.V. 版權： 2014 INIST-CNRS 識別號： ISSN: 1388-2481 識別號： ISSN: 1873-1902 識別號： EISSN: 1873-1902 識別號： DOI: 10.1016/j.elecom.2013.03.025
