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Visualization of Surfactants on Nanostructured Palladium Clusters by a Combination of STM and High-Resolution TEM
Abstract
Scanning tunneling microscopy (STM) and high-resolution transmission electron microscopy (TEM) have been used to determine the dimensions of a series of palladium clusters stabilized by tetraalkylammonium salts. Electrochemically prepared colloids were used in which the average diameter of the inner metal core was varied between 2 and 4 nanometers, and the size of the ammonium ions was adjusted in the series + N( n -C 4 H 9 ) 4 < + N( n -C 8 H 17 ) 4 < + N( n -C 18 H 37 ) 4 . The difference between the mean diameter determined by STM and that measured by TEM allows the determination of the thickness of the protective surfactant layer. On the basis of these studies, a model of the geometric properties of ammonium-stabilized palladium clusters has been proposed. Suggestions for the mechanism of the STM imaging process are also made.
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Citations
Cited by
Aiken, J. D., & Finke, R. G. (1999) · Journal of Molecular Catalysis A: Chemical · doi:10.1016/s1381-1169(99)00098-9 · Cited by 938
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Pachón, L. D., & Rothenberg, G. (2008) · Applied Organometallic Chemistry · doi:10.1002/aoc.1382 · Cited by 443
Physico-chemical processes in imidazolium ionic liquids
Dupont, J., & Suarez, P. A. Z. (2006) · Physical Chemistry Chemical Physics · doi:10.1039/b602046a · Cited by 417
Thermal Reshaping of Gold Nanorods in Micelles
Mohamed, M. B., Ismail, K. Z., Link, S., & El-Sayed, M. A. (1998) · The Journal of Physical Chemistry B · doi:10.1021/jp9831482 · Cited by 295
Özkar, S., & Finke, R. G. (2002) · Journal of the American Chemical Society · doi:10.1021/ja012749v · Cited by 293
Metadata
- Authors
- Reetz, M. T., Helbig, W., Quaiser, S. A., Stimming, U., Breuer, N., & Vogel, R.
- Venue
- Science
- Published
- 1995-01-20
- Volume
- 267
- Issue
- 5196
- Pages
- 367-369
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2062430101
- Cited by
- 345
- References
- 0
- FWCI
- 24.26
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Visualization of Surfactants on Nanostructured Palladium Clusters by a Combination of STM and High-Resolution TEM. https://app.cochat.ai/papers/10.1126/science.267.5196.367
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- Reetz, M. T., Helbig, W., Quaiser, S. A., Stimming, U., Breuer, N., & Vogel, R. (1995). Visualization of Surfactants on Nanostructured Palladium Clusters by a Combination of STM and High-Resolution TEM. Science. https://doi.org/10.1126/science.267.5196.367
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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