TY - JOUR
T1 - Preparation of carbon-supported PtM (M = Au, Pd, or Cu) nanorods and their application in oxygen reduction reaction
AU - Yeh, Tzu Hau
AU - Liu, Chen Wei
AU - Chen, Hong Shuo
AU - Wang, Kuan Wen
N1 - Funding Information:
This work was supported by the National Science Council of Taiwan under Contract No. 101-2221-E-008-042 and 101-2120-M-007-013 .
PY - 2013/6
Y1 - 2013/6
N2 - 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 1000 cycles, 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.
AB - 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 1000 cycles, 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.
KW - Accelerated durability test (ADT)
KW - Nanorods (NRs)
KW - Oxygen reduction reaction (ORR)
KW - PtM catalysts (M = Cu Pd or Au)
KW - Unoccupied d-states (h)
UR - http://www.scopus.com/inward/record.url?scp=84875939288&partnerID=8YFLogxK
U2 - 10.1016/j.elecom.2013.03.025
DO - 10.1016/j.elecom.2013.03.025
M3 - 期刊論文
AN - SCOPUS:84875939288
SN - 1388-2481
VL - 31
SP - 125
EP - 128
JO - Electrochemistry Communications
JF - Electrochemistry Communications
ER -