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Synthesis of Small Atomic Copper Clusters in Microemulsions
Abstract
We report evidence of the formation of small atomic copper clusters, Cu(n), by the microemulsion technique, and how their size can be controlled by adjusting the percentage of the reducing agent used. Copper clusters were characterized by UV-visible spectrophotometry and atomic force microscopy. Photoluminescent copper clusters, Cu(n), with n less, similar 13, can be obtained using very low percentages of the reducing agent (<10% of the stochiometric amount). Photoluminescent clusters disappear for larger percentages of reducing agent, giving rise to larger copper clusters (0.8-2.0 nm), showing a red-shift of their UV-visible absorption bands as they grow in size. Finally, by using near stoichiometric amounts, nanoparticles of 2.9 +/- 1.1 nm in size, displaying the characteristic plasmon band, can be obtained.
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Cites
Theory, Production and Mechanism of Formation of Monodispersed Hydrosols
LaMer, V. K., & Dinegar, R. H. (1950) · Journal of the American Chemical Society · doi:10.1021/ja01167a001 · Cited by 3,894
Cited by
Metal Catalysts for Heterogeneous Catalysis: From Single Atoms to Nanoclusters and Nanoparticles
Liu, L., & Corma, A. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00776 · Cited by 4,777
Sub-nanometre sized metal clusters: from synthetic challenges to the unique property discoveries
Lu, Y., & Chen, W. (2012) · Chemical Society Reviews · doi:10.1039/c2cs15325d · Cited by 1,152
Wei, W., Lu, Y., Chen, W., & Chen, S. (2011) · Journal of the American Chemical Society · doi:10.1021/ja109303z · Cited by 481
Atomically precise copper nanoclusters and their applications
Liu, X., & Astruc, D. (2018) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2018.01.001 · Cited by 322
Wang, C., Wang, C., Xu, L., Cheng, H., Lin, Q., & Zhang, C. (2014) · Nanoscale · doi:10.1039/c3nr04835g · Cited by 256
Metadata
- Authors
- Vázquez-Vázquez, C., Bañobre-López, M., Mitra, A., López-Quintela, M. A., & Rivas, J.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-06-22
- Volume
- 25
- Issue
- 14
- Pages
- 8208-8216
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2015598344
- Cited by
- 193
- References
- 1
- FWCI
- 2.39
- Type
- journal article
- Language
- en
- Open access
- closed
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