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Is the Anion the Major Parameter in the Shape Control of Nanocrystals?
Abstract
In this paper, copper nanocrystals are produced by using Cu(AOT) 2 −isooctane−water solution as a template. Even if the template does not change with various salt additions, the nanocrystal growth markedly depends on the salt used. It is demonstrated that chloride ions enable the growth of nanorods with an aspect ratio varying with chloride concentration. Conversely, only a slight amount of bromide ion is needed to increase the nanorod aspect ratio from 3 to 5 without any changes when increasing the bromide ion concentration. A rather large number of cubes are produced. Formations of nanorods and cubes are explained in terms of anion adsorption on (111) and (100) faces, respectively. By replacing chloride by other ions, the morphology of copper nanocrystals drastically changes. In all cases, the nanocrystals formed are fcc single crystals with a polyhedral shape or crystals composed of fcc tetrahedra (deformed or not) bounded by (111) faces. Some cylinders are formed by the connection of 2 different crystals with different 5-fold axes and/or with additional planes. This gives rise to various particle shapes.
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Citations
Cited by
Peng, Z., & Yang, H. (2009) · Nano Today · doi:10.1016/j.nantod.2008.10.010 · Cited by 1,085
Single-Phase and Gram-Scale Routes toward Nearly Monodisperse Au and Other Noble Metal Nanocrystals
Jana, N. R., & Peng, X. (2003) · Journal of the American Chemical Society · doi:10.1021/ja038219b · Cited by 555
Xu, D., Liu, Z., Yang, H., Liu, Q., Zhang, J., Fang, J., Zou, S., & Sun, K. (2009) · Angewandte Chemie International Edition · doi:10.1002/anie.200900293 · Cited by 385
The Many “Facets” of Halide Ions in the Chemistry of Colloidal Inorganic Nanocrystals
Ghosh, S., & Manna, L. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00158 · Cited by 325
Preparation, Self-Assembly, and Mechanistic Study of Highly Monodispersed Nanocubes
Ren, J., & Tilley, R. D. (2007) · Journal of the American Chemical Society · doi:10.1021/ja067636w · Cited by 227
Metadata
- Authors
- Filankembo, A., Giorgio, S., Lisiecki, I., & Pileni, M. P.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-04-10
- Volume
- 107
- Issue
- 30
- Pages
- 7492-7500
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2005889082
- Cited by
- 225
- References
- 0
- FWCI
- 8.90
- Type
- journal article
- Language
- en
- Open access
- closed
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- Filankembo, A., Giorgio, S., Lisiecki, I., & Pileni, M. P. (2003). Is the Anion the Major Parameter in the Shape Control of Nanocrystals? The Journal of Physical Chemistry B. https://doi.org/10.1021/jp022282q
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
