Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Evaluating pore space in macroporous ceramics with water-based porosimetry
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Department of Fibre and Polymer Technology, School of Chemical Science and Engineering, Royal Institute of Technology.
Department of Fibre and Polymer Technology, School of Chemical Science and Engineering, Royal Institute of Technology.
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK). Wallenberg Wood Science Center, Stockholm.
2013 (English)In: Journal of The American Ceramic Society, ISSN 0002-7820, E-ISSN 1551-2916, Vol. 96, no 6, 1916-1922 p.Article in journal (Refereed) Published
Abstract [en]

We show that water-based porosimetry (WBP), a facile, simple, and nondestructive porosimetry technique, accurately evaluates both the pore size distribution and throat size distribution of sacrificially templated macroporous alumina. The pore size distribution and throat size distribution derived from the WBP evaluation in uptake (imbibition) and release (drainage) mode, respectively, were corroborated by mercury porosimetry and X-ray micro-computed tomography (μ-CT). In contrast with mercury porosimetry, the WBP also provided information on the presence of “dead-end pores” in the macroporous alumina.

Place, publisher, year, edition, pages
2013. Vol. 96, no 6, 1916-1922 p.
Keyword [en]
intrusion methods, porous materials, ceramics, x-ray methods, pore volume distribution
National Category
Materials Engineering Ceramics
Research subject
Materials Chemistry
Identifiers
URN: urn:nbn:se:su:diva-54661DOI: 10.1111/jace.12223ISI: 000320036600041OAI: oai:DiVA.org:su-54661DiVA: diva2:396569
Note

AuthorCount: 4;

Available from: 2011-02-10 Created: 2011-02-10 Last updated: 2017-12-11Bibliographically approved
In thesis
1. Shaping Macroporous Ceramics: templated synthesis, X-ray tomography and permeability
Open this publication in new window or tab >>Shaping Macroporous Ceramics: templated synthesis, X-ray tomography and permeability
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Macroporous ceramic materials have found widespread technological application ranging from particulate filters in diesel engines, tissue engineering scaffolds, and as support materials in carbon capture processes. This thesis demonstrates how the pore space of macroporous alumina can be manipulated, analysed in three-dimensions (3D) using visualisation techniques, and functionalised with a CO2-adsorbing material.

A novel method was developed to produce macroporous alumina materials: by combining sacrificial templating with thermally expandable polymeric microspheres and gel-casting of an alumina suspension. This method offers a versatile production of macroporous ceramics in which the level of porosity and the pore size distribution can easily be altered by varying the amount and type of spheres. The permeability to fluid flow could be regulated by controlling the connectivity of the pore space and the size of the smallest constrictions between the pores. Sacrificial templating with particle-coated expandable spheres significantly increased the fraction of isolated pore clusters and reduced both the sizes and the numbers of connections between neighbouring pores, compared to templating with un-coated spheres.

The macroporous alumina materials were characterised with X-ray micro-computed tomography (μ-CT). The 3D data-sets obtained by X-ray μ-CT were used to calculate the spatial variation in porosity, the throat and pore size distributions and to calculate the permeability to fluid flow. The throat and pore size distributions were also able to be accurately quantified in only one extrusion and intrusion cycle with water-based porosimetry; a relatively novel and simple characterisation technique. The pore walls of the macroporous alumina materials were also coated with zeolite films by a colloidal processing technique. The CO2-uptake of the coated alumina materials and of hierarchically porous monoliths of zeolites was evaluated and compared.

Place, publisher, year, edition, pages
Stockholm: Department of Materials and Environmental Chemistry, Stockholm University, 2011. 60 p.
Keyword
Alumina, ceramic, CO2 capture, colloidal processing, expandable microspheres, gel casting, layer-by-layer, macroporosity, near-net shape, non-destructive evaluation, permeability, porosity, sacrificial templating, X-ray computed tomography
National Category
Chemical Sciences
Research subject
Materials Chemistry
Identifiers
urn:nbn:se:su:diva-54677 (URN)978-91-7447-180-9 (ISBN)
Public defence
2011-03-11, Magnélisalen, Kemiska övningslaboratoriet, Svante Arrhenius väg 16 B, Stockholm, 13:00 (English)
Opponent
Supervisors
Note
As the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Submitted. Paper 4: Accepted. Paper 5: Manuscript. Paper 6: Submitted.Available from: 2011-02-17 Created: 2011-02-10 Last updated: 2011-02-11Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Andersson, LinnéaBergström, Lennart
By organisation
Department of Materials and Environmental Chemistry (MMK)
In the same journal
Journal of The American Ceramic Society
Materials EngineeringCeramics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 120 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf