Ceramic microfluidic monoliths by ice templating

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Zheng, Jumeng and Salamon, David and Lefferts, Leon and Wessling, Matthias and Winnubst, Louis (2000) Ceramic microfluidic monoliths by ice templating. Microporous and mesoporous materials, 134 (1-3). pp. 216-219. ISSN 1387-1811

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Abstract:Meso/macro-porous alumina microfluidic monoliths were fabricated by an ice-templating (or freeze-casting) technique. A (green) compact with sufficient strength is obtained after controlled freezing and simple drying under ambient conditions by starting with an aqueous suspension of a mixture of submicrometer-sized α-alumina and nanometer-sized γ-alumina. A monolith with high surface area (30 m2 g−1) is obtained after sintering at 900 °C. The hierarchical structure of these monoliths consists of slit-shaped macro-pores enclosing a meso-porous skeleton with pore sizes from 20 to 60 nm. The advanced porous structure of the monoliths and their easy preparation suggests large potentials for application as flow-through catalyst support.
Item Type:Article
Copyright:© 2000 Elsevier
Faculty:
Engineering Technology (CTW)
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/74261
Official URL:http://dx.doi.org/10.1016/j.micromeso.2010.05.012
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