Abstract
In this work, highly branched gold-palladium alloy nanobrambles (Au46Pd54 NBs) were fabricated by a facile, eco-friendly and controlled one-pot aqueous approach, using thymine as the weak stabilizing, capping and structure-directing agents. The synthesized architectures were mainly characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), and their formation mechanism was discussed in some detail. Using crystal violet (CV) as the typical Raman probe, the obtained Au46Pd54 NBs displayed superior surface-enhanced Raman scattering (SERS) performance when compared with Au30Pd70 NCs and Au60Pd40 NCs, owing to the unique structure and morphology of Au46Pd54 NBs as well as the synergistic effects between Au and Pd.
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