Single-Crystal Nanowires of Platinum Can Be Synthesized by Controlling the Reaction Rate of a Polyol Process

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Jingyi Chen; Thurston Herricks; Matthias Geissler; Younan Xia

2004

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  • Platinum nanowires of ∼100 nm in length and ∼5 nm in diameter have been synthesized by reducing H2PtCl6 with ethylene glycol in the presence of poly(vinyl pyrrolidone) and a trace amount of Fe3+ or Fe2+
  • The wires were generated at the final stage of the synthesis, which involved the formation of several intermediate species
  • Experimental procedure; TEM and SEM images of various structures involved in the reaction; XRD pattern of the Pt nanowires; and high-resolution X-ray photoelectron spectroscopy spectra and UV−vis spectra taken at different stages of the reaction
  • Exploring the Limitations of the Use of Competing Reducers to Control the Morphology and Composition of Pt and PtCo Nanocrystals

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