Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 117, Issue 19, Pages 9826-9834Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp400502y
Keywords
-
Funding
- National 973 program of China [2012CB215500]
- NSFC [21073094, 21273116]
- United Fund of NSFC
- Yunnan Province [U1137602]
- Industry-Academia Cooperation Innovation Fund Project of Jiangsu Province [BY2012001]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Ask authors/readers for more resources
Well-defined and strikingly monomorphic Pt-Pd alloy nanoflowers (Pt-Pd ANFs) with dominant {111} facets were successfully synthesized through a facile cochemical reduction method in a poly(allylamine hydrochloride) (PAR) based aqueous solution. The detailed morphology, composition, and structure of the Pt-Pd ANFs were investigated by transmission electron Microscopy (TEM); selected-area electron diffraction (SAED), energy dispersive spectrum (EDS), nitrogen adsorption-desorption isotherms, (SADI), EDS mapping, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), demonstrating the Pt-Pd ANFs were highly porous and a self-supported structure. The formation mechanism of the Pt-Pd ANFs were investigated by TEM and Fourier transform infrared (FT-IR), indicating that the existence of PAH and rapid growth of crystal, nuclei were essential for the formation of the Pt-Pd ANFs. The electrocatalytic activity and stability of the Pt-Pd ANFs for the oxygen reduction reaction (ORR) were investigated by rotating disk electrode voltammetry in 0.1 M HClO4 solution. The electrochemical tests indicated the {111}-enclosed Pt-Pd ANFs exhibited superior ORR activity along with satisfactory stability and methanol-tolerant. ability under acidic conditions,, which made them promising electrocatalysts for the future.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available