Characterisation of hollow Russian doll microspheres

Shakiela Begum, Ian P. Jones, Chengge Jiao, Daniel E. Lynch, Jon A. Preece

Research output: Contribution to journalArticle

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Abstract

Poly(1-methylpyrrol-2-yl)squaraine (PMPS) particles have been characterised using SEM. The PMPS particles were used as templates to prepare bare silica and iron-silica hollow spheres, which were characterised using TEM and SEM. The PMPS particles and the hollow spheres are not uniformly sized and are agglomerated. The hollow spheres with larger diameters (>900 nm) contain an internal 'Russian doll' structure. The iron-silica hollow spheres are fused to one another, and the hollow spheres have a heterogeneous wall thickness. The silica and iron-silica hollow spheres both aggregate by size. There are two different size populations (for the diameter) of the bare silica and iron-silica hollow spheres. The smaller silica spheres have thinner walls compared to the larger silica hollow spheres. The larger silica hollow spheres and the iron-silica hollow spheres have similar wall thicknesses. The iron compound in the iron-silica hollow spheres has an oxidation state of 3+ and is crystalline. ? The Author(s) 2010.
Original languageEnglish
Pages (from-to)3697-3706
Number of pages10
JournalJournal of Materials Science
Volume45
Issue number14
Early online date11 May 2010
DOIs
Publication statusPublished - Jul 2010

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Microspheres
Silicon Dioxide
Silica
Iron
Iron Compounds
Iron compounds
Scanning electron microscopy
Crystalline materials
Transmission electron microscopy
Oxidation

Bibliographical note

This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

Keywords

  • Hollow Sphere
  • Electron Energy Loss Spectrometry
  • Silica Shell
  • Ultra Thin Section
  • Bare Silica

Cite this

Begum, S., Jones, I. P., Jiao, C., Lynch, D. E., & Preece, J. A. (2010). Characterisation of hollow Russian doll microspheres. Journal of Materials Science, 45(14), 3697-3706. https://doi.org/10.1007/s10853-010-4479-3

Characterisation of hollow Russian doll microspheres. / Begum, Shakiela; Jones, Ian P.; Jiao, Chengge; Lynch, Daniel E.; Preece, Jon A.

In: Journal of Materials Science, Vol. 45, No. 14, 07.2010, p. 3697-3706.

Research output: Contribution to journalArticle

Begum, S, Jones, IP, Jiao, C, Lynch, DE & Preece, JA 2010, 'Characterisation of hollow Russian doll microspheres' Journal of Materials Science, vol. 45, no. 14, pp. 3697-3706. https://doi.org/10.1007/s10853-010-4479-3
Begum, Shakiela ; Jones, Ian P. ; Jiao, Chengge ; Lynch, Daniel E. ; Preece, Jon A. / Characterisation of hollow Russian doll microspheres. In: Journal of Materials Science. 2010 ; Vol. 45, No. 14. pp. 3697-3706.
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