Characterisation of hollow Russian doll microspheres

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

doi:10.1007/s10853-010-4479-3

Characterisation of hollow Russian doll microspheres

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

Research output: Contribution to journal › Article › peer-review

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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 language	English
Pages (from-to)	3697-3706
Number of pages	10
Journal	Journal of Materials Science
Volume	45
Issue number	14
Early online date	11 May 2010
DOIs	https://doi.org/10.1007/s10853-010-4479-3
Publication status	Published - Jul 2010

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

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title = "Characterisation of hollow Russian doll microspheres",

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.",

keywords = "Hollow Sphere, Electron Energy Loss Spectrometry, Silica Shell, Ultra Thin Section, Bare Silica",

author = "Shakiela Begum and Jones, {Ian P.} and Chengge Jiao and Lynch, {Daniel E.} and Preece, {Jon A.}",

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.",

year = "2010",

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T1 - Characterisation of hollow Russian doll microspheres

AU - Begum, Shakiela

AU - Jones, Ian P.

AU - Jiao, Chengge

AU - Lynch, Daniel E.

AU - Preece, Jon A.

N1 - 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.

PY - 2010/7

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N2 - 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.

AB - 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.

KW - Hollow Sphere

KW - Electron Energy Loss Spectrometry

KW - Silica Shell

KW - Ultra Thin Section

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DO - 10.1007/s10853-010-4479-3

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