Journal
JOURNAL OF POWER SOURCES
Volume 326, Issue -, Pages 227-234Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.06.115
Keywords
Folic acid; Nanodendrites; Electrocatalysis; Methanol oxidation reaction; Ethanol oxidation reaction
Funding
- National Natural Science foundation of China [21475118, 21275130]
- graduate research and innovation plan of Suzhou University of Science and Technology
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Folic acid (FA), as an important biomolecule in cell division and growth, is firstly employed as the structure director and stabilizing agent for controlled synthesis of uniform Au65Pt35 nanodendrites (NDs) by a one-pot wet-chemical bio-inspired route at room temperature. No pre-seed, template, organic solvent, polymer, surfactant or complex instrument is involved. The products are mainly characterized by transmission electron microscopy (TEM), high angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), X-ray diffraction (XRD), and X-Ray photoelectron spectroscopy (XPS). The architectures have enlarged electrochemically active surface area (60.6 m(2) g(Pt)(-1)), enhanced catalytic activity and durability for methanol and ethanol oxidation in contrast with commercial Pt black and the other AuPt alloys by tuning the molar ratios of Au to Pt (e.g., Au31Pt69 and Au82Pt18 nanoparticles). This strategy would be applied to fabricate other bimetallic nanocatalysts in fuel cells. (C) 2016 Elsevier B.V. All rights reserved.
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