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Synthesis of Rod-Shaped Gold Nanorattles with Improved Plasmon Sensitivity and Catalytic Activity
Abstract
We prepared rod-shaped gold nanorattles solid gold nanorods surrounded by a thin gold shell using a galvanic replacement process starting with silver-coated gold nanorods. These structures are very promising candidates for catalytic applications and optimized plasmon sensors. They combine the advantages of rods (low plasmon resonance frequency, large polarizability, small damping) with the high surface area of hollow structures. The plasmon sensitivity to changes in the dielectric environment is up to 50% higher for gold nanorattles compared to gold nanorods with the same resonance frequency and 6x higher than for plasmons in spherical gold nanoparticles. The catalytic activity measured for the reduction of p-nitrophenol is 4x larger than for bare gold nanorods.
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Cites
Nanostructures in Biodiagnostics
Rosi, N. L., & Mirkin, C. A. (2005) · Chemical Reviews · doi:10.1021/cr030067f · Cited by 4,603
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
Hong, J. W., Kang, S. W., Choi, B.-S., Kim, D., Lee, S. B., & Han, S. W. (2012) · ACS Nano · doi:10.1021/nn2046828 · Cited by 367
Versatile Solution Phase Triangular Silver Nanoplates for Highly Sensitive Plasmon Resonance Sensing
Charles, D. E., Aherne, D., Gara, M., Ledwith, D. M., Gun’ko, Y. K., Kelly, J. M., Blau, W. J., & Brennan-Fournet, M. E. (2010) · ACS Nano · doi:10.1021/nn9016235 · Cited by 164
Ngo, H. T., Gandra, N., Fales, A. M., Taylor, S. M., & Vo-Dinh, T. (2016) · Biosensors and Bioelectronics · doi:10.1016/j.bios.2016.01.073 · Cited by 135
Metadata
- Authors
- Khalavka, Y., Becker, J., & Sönnichsen, C.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-01-20
- Volume
- 131
- Issue
- 5
- Pages
- 1871-1875
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2057644785
- Cited by
- 336
- References
- 1
- FWCI
- 13.13
- Type
- journal article
- Language
- en
- Open access
- closed
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- Khalavka, Y., Becker, J., & Sönnichsen, C. (2009). Synthesis of Rod-Shaped Gold Nanorattles with Improved Plasmon Sensitivity and Catalytic Activity. Journal of the American Chemical Society. https://doi.org/10.1021/ja806766w
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