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Changing Catalytic Activity during Colloidal Platinum Nanocatalysis Due to Shape Changes: Electron-Transfer Reaction
Abstract
The shape distribution of the catalytic nanoparticles and the activation energy of the electron-transfer reaction between hexacyanoferrate (III) and thiosulfate ions were determined at different times during the course of the reaction. The activation energy is found to increase during the reaction when dominantly tetrahedral nanoparticles are used, decreases slightly when dominantly cubic nanoparticles are used, and remains almost unchanged when spherical nanoparticles are used. Corresponding changes in the shape of the tetrahedral and cubic, but not spherical, shape is observed. This is consistent with the changes in the activation energy that are observed. The shape distribution and activation energy of dominantly spherical nanoparticles is found to remain stable during the course of the reaction.
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Citations
Cited by
Chemistry and Properties of Nanocrystals of Different Shapes
Burda, C., Chen, X., Narayanan, R., & El-Sayed, M. A. (2005) · Chemical Reviews · doi:10.1021/cr030063a · Cited by 7,230
Self-citationNarayanan, R., & El-Sayed, M. A. (2005) · The Journal of Physical Chemistry B · doi:10.1021/jp051066p · Cited by 1,298
Self-citationShape-controlled synthesis of platinum nanocrystals for catalytic and electrocatalytic applications
Chen, J., Lim, B., Lee, E. P., & Xia, Y. (2009) · Nano Today · doi:10.1016/j.nantod.2008.09.002 · Cited by 852
Nanocatalysts for Suzuki cross-coupling reactions
Fihri, A., Bouhrara, M., Nekoueishahraki, B., Basset, J.-M., & Polshettiwar, V. (2011) · Chemical Society Reviews · doi:10.1039/c1cs15079k · Cited by 803
Yin, A.-X., Min, X.-Q., Zhang, Y.-W., & Yan, C.-H. (2011) · Journal of the American Chemical Society · doi:10.1021/ja200329p · Cited by 454
Metadata
- Authors
- Narayanan, R., & El-Sayed, M. A.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-05-21
- Volume
- 126
- Issue
- 23
- Pages
- 7194-7195
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2046849974
- Cited by
- 437
- References
- 0
- FWCI
- 11.02
- Type
- journal article
- Language
- en
- Open access
- closed
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- Narayanan, R., & El-Sayed, M. A. (2004). Changing Catalytic Activity during Colloidal Platinum Nanocatalysis Due to Shape Changes: Electron-Transfer Reaction. Journal of the American Chemical Society. https://doi.org/10.1021/ja0486061
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