The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
One-Pot Synthesis of Hollow Superparamagnetic CoPt Nanospheres
Abstract
Hollow metal nanospheres are of interest for a variety of academic and technological applications, including drug delivery, catalysis, plasmonics, and lightweight structural composites. Despite recent advances in synthesizing metal nanostructures with controlled morphologies, there are very few reports of hollow bimetallic nanospheres, although such systems promise to offer advantages over single-metal systems. Here, were report a one-pot synthetic strategy for accessing hollow CoPt nanospheres with a Co-Pt alloy structure. The approach utilizes an in situ Co template and exploits galvanic displacement reactions to selectively dissolve the Co core while depositing a Pt shell. The combination of reducing conditions and a polymer stabilizer appears to allow the Co and Pt to co-reduce and form a Co-Pt fcc alloy phase with a morphology that is templated by the sacrificial Co core. The hollow CoPt nanospheres, which show magnetic hysteresis at low temperatures, are thermally stable up to 300 degrees C. The approach, which adds to a growing toolbox of reactions that yield morphologically controlled magnetic CoPt and FePt nanomaterials, is likely to be general for a variety of alloy systems.
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Cites
Biologically erodable microspheres as potential oral drug delivery systems
Mathiowitz, E., Jacob, J. S., Jong, Y. S., Carino, G. P., Chickering, D. E., Chaturvedi, P., Santos, C. A., Vijayaraghavan, K., Montgomery, S., Bassett, M., et al. (1997) · Nature · doi:10.1038/386410a0 · Cited by 823
Cited by
Synthesis, Properties, and Applications of Hollow Micro-/Nanostructures
Wang, X., Feng, J., Bai, Y., Zhang, Q., & Yin, Y. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00731 · Cited by 1,456
Bimetallic Nanocrystals: Liquid‐Phase Synthesis and Catalytic Applications
Wang, D., & Li, Y. (2011) · Advanced Materials · doi:10.1002/adma.201003695 · Cited by 1,117
Xia, X., Wang, Y., Ruditskiy, A., & Xia, Y. (2013) · Advanced Materials · doi:10.1002/adma.201302820 · Cited by 1,019
Zhu, C., Du, D., Eychmüller, A., & Lin, Y. (2015) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00255 · Cited by 672
Synthesis of colloidal metal and metal alloy nanoparticles for electrochemical energy applications
You, H., Yang, S., Ding, B., & Yang, H. (2013) · Chem. Soc. Rev. · doi:10.1039/c2cs35319a · Cited by 560
Metadata
- Authors
- Vasquez, Y., Sra, A. K., & Schaak, R. E.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-08-17
- Volume
- 127
- Issue
- 36
- Pages
- 12504-12505
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2027166578
- Cited by
- 298
- References
- 1
- FWCI
- 10.68
- Type
- journal article
- Language
- en
- Open access
- closed
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