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A Facile Method to Synthesis Hollow Silica Ellipsoids and Their Derivatives

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Abstract

We have utilized wet-chemical etching of ellipsoidal silica nanoparticles to form silica nanoshells of a range of elliptical morphologies. The thicknesses of the silica ellipsoidal nanoshells are controlled through variation of synthesis conditions. A mechanism has been proposed to explain how the nanoshells are formed, and we have demonstrated that the porosity of the silica ellipsoid plays a role in the dissolution-regrowth process. We have also, via appropriate functionalization of the silica surface, coated the ellipsoidal nanoshells with Au nanoparticles.

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Acknowledgments

This work was partially supported by the following NSF programs: (1) The Centers for Research Excellence in Science and Technology (CREST) program under Award Number HRD- 0833180, and (2) the Nanoscale Science and Engineering Initiative under Award Number CHE- 0641523; the New York State Office of Science, Technology, and Academic Research (NYSTAR) provided matching funding for this latter award.

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Authors and Affiliations

  1. The City College of The City University of New York, 160 Convent Avenue, New York, NY, USA

    Henan Zhang & Daniel L. Akins

Authors
  1. Henan Zhang
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  2. Daniel L. Akins
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Zhang, H., Akins, D.L. A Facile Method to Synthesis Hollow Silica Ellipsoids and Their Derivatives. MRS Online Proceedings Library 1453, 31–35 (2012). https://doi.org/10.1557/opl.2012.1342

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  • DOI: https://doi.org/10.1557/opl.2012.1342

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