The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Single Nanocrystals of Platinum Prepared by Partial Dissolution of Au-Pt Nanoalloys
Abstract
Small metal nanoparticles that are also highly crystalline have the potential for showing enhanced catalytic activity. We describe the preparation of single nanocrystals of platinum that are 2 to 3 nanometers in diameter. These particles were generated and immobilized on spherical polyelectrolyte brushes consisting of a polystyrene core (diameter of ∼100 nanometers) onto which long chains of a cationic polyelectrolyte were affixed. In a first step, a nanoalloy of gold and platinum (a solid solution) was generated within the layer of cationic polyelectrolyte chains. In a second step, the gold was slowly and selectively dissolved by cyanide ions in the presence of oxygen. Cryogenic transmission electron microscopy, wide-angle x-ray scattering, and high-resolution transmission electron microscopy showed that the resulting platinum nanoparticles are faceted single crystals that remain embedded in the polyelectrolyte-chain layer. The composite systems of the core particles and the platinum single nanocrystals exhibit an excellent colloidal stability, as well as high catalytic activity in hydrogenation reactions in the aqueous phase.
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Cites
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
Nanoalloys: From Theory to Applications of Alloy Clusters and Nanoparticles
Ferrando, R., Jellinek, J., & Johnston, R. L. (2008) · Chemical Reviews · doi:10.1021/cr040090g · Cited by 3,690
Tian, N., Zhou, Z.-Y., Sun, S.-G., Ding, Y., & Wang, Z. L. (2007) · Science · doi:10.1126/science.1140484 · Cited by 3,073
Koh, S., & Strasser, P. (2007) · Journal of the American Chemical Society · doi:10.1021/ja0742784 · Cited by 783
Morphological Control of Catalytically Active Platinum Nanocrystals
Lee, H., Habas, S. E., Kweskin, S., Butcher, D., Somorjai, G. A., & Yang, P. (2006) · Angewandte Chemie International Edition · doi:10.1002/anie.200603068 · Cited by 659
Cited by
Chen, J. S., Tan, Y. L., Li, C. M., Cheah, Y. L., Luan, D., Madhavi, S., Boey, F. Y. C., Archer, L. A., & Lou, X. W. (2010) · Journal of the American Chemical Society · doi:10.1021/ja100102y · Cited by 1,243
He, R., Wang, Y.-C., Wang, X., Wang, Z., Liu, G., Zhou, W., Wen, L., Li, Q., Wang, X., Chen, X., et al. (2014) · Nature Communications · doi:10.1038/ncomms5327 · Cited by 344
Ru Nanoframes with an fcc Structure and Enhanced Catalytic Properties
Ye, H., Wang, Q., Catalano, M., Lu, N., Vermeylen, J., Kim, M. J., Liu, Y., Sun, Y., & Xia, X. (2016) · Nano Letters · doi:10.1021/acs.nanolett.6b00607 · Cited by 221
Zhong, S., & Pochan, D. J. (2010) · Polymer Reviews · doi:10.1080/15583724.2010.493254 · Cited by 51
Metadata
- Authors
- Schrinner, M., Ballauff, M., Talmon, Y., Kauffmann, Y., Thun, J., Möller, M., & Breu, J.
- Venue
- Science
- Published
- 2009-01-30
- Volume
- 323
- Issue
- 5914
- Pages
- 617-620
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2106125134
- Cited by
- 266
- References
- 5
- FWCI
- 16.28
- Type
- journal article
- Language
- en
- Open access
- closed
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