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Single-Crystal Nanowires of Platinum Can Be Synthesized by Controlling the Reaction Rate of a Polyol Process
Abstract
Platinum nanowires of approximately 100 nm in length and approximately 5 nm in diameter have been synthesized by reducing H(2)PtCl(6) with ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP) and a trace amount of Fe(3+) or Fe(2+). The wires were generated at the final stage of the synthesis, which involved the formation of several intermediate species. The Fe(3+) or Fe(2+) ions had dual functions in the synthesis: they induced aggregation of Pt nanoparticles into larger structures that served as the nucleation sites, and they greatly reduced the reaction rate and supersaturation level to induce anisotropic growth. The reaction mechanism was studied by X-ray photoelectron spectroscopy (XPS) and UV-vis spectral analysis. The Pt nanowires could be readily separated from the surfaces of the agglomerates by sonication and obtained as pure samples by centrifugation.
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Cited by
Shape‐Controlled Synthesis of Metal Nanocrystals: Simple Chemistry Meets Complex Physics?
Xia, Y., Xiong, Y., Lim, B., & Skrabalak, S. E. (2009) · Angewandte Chemie International Edition · doi:10.1002/anie.200802248 · Cited by 5,702
Self-citationShape‐Controlled Synthesis of Metal Nanostructures: The Case of Silver
Wiley, B., Sun, Y., Mayers, B., & Xia, Y. (2005) · Chemistry – A European Journal · doi:10.1002/chem.200400927 · Cited by 1,643
Self-citationNarayanan, R., & El-Sayed, M. A. (2005) · The Journal of Physical Chemistry B · doi:10.1021/jp051066p · Cited by 1,298
Nanostructured Pt-alloy electrocatalysts for PEM fuel cell oxygen reduction reaction
Bing, Y., Liu, H., Zhang, L., Ghosh, D., & Zhang, J. (2010) · Chemical Society Reviews · doi:10.1039/b912552c · Cited by 1,154
Peng, Z., & Yang, H. (2009) · Nano Today · doi:10.1016/j.nantod.2008.10.010 · Cited by 1,085
Metadata
- Authors
- Chen, J., Herricks, T., Geissler, M., & Xia, Y.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-08-17
- Volume
- 126
- Issue
- 35
- Pages
- 10854-10855
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1968663830
- Cited by
- 490
- References
- 0
- FWCI
- 15.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chen, J., Herricks, T., Geissler, M., & Xia, Y. (2004). Single-Crystal Nanowires of Platinum Can Be Synthesized by Controlling the Reaction Rate of a Polyol Process. Journal of the American Chemical Society. https://doi.org/10.1021/ja0468224
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