Ceramic microfluidic monoliths by ice templating

Jumeng Zheng; David Salamon; Leonardus Lefferts; Matthias Wessling; Aloysius J.A. Winnubst

doi:10.1016/j.micromeso.2010.05.012

Ceramic microfluidic monoliths by ice templating

Jumeng Zheng, David Salamon, Leonardus Lefferts, Matthias Wessling, Aloysius J.A. Winnubst

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

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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.

Original language	Undefined
Pages (from-to)	216-219
Number of pages	4
Journal	Microporous and mesoporous materials
Volume	134
Issue number	1-3
DOIs	https://doi.org/10.1016/j.micromeso.2010.05.012
Publication status	Published - 2010

Keywords

Powder mixture
Meso/macro-porosity
Microfluidic monolith
IR-74261
METIS-267255
Ice templating

Access to Document

10.1016/j.micromeso.2010.05.012

Cite this

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title = "Ceramic microfluidic monoliths by ice templating",

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.",

keywords = "Powder mixture, Meso/macro-porosity, Microfluidic monolith, IR-74261, METIS-267255, Ice templating",

author = "Jumeng Zheng and David Salamon and Leonardus Lefferts and Matthias Wessling and Winnubst, {Aloysius J.A.}",

year = "2010",

doi = "10.1016/j.micromeso.2010.05.012",

language = "Undefined",

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pages = "216--219",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Ceramic microfluidic monoliths by ice templating

AU - Zheng, Jumeng

AU - Salamon, David

AU - Lefferts, Leonardus

AU - Wessling, Matthias

AU - Winnubst, Aloysius J.A.

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

KW - Powder mixture

KW - Meso/macro-porosity

KW - Microfluidic monolith

KW - IR-74261

KW - METIS-267255

KW - Ice templating

U2 - 10.1016/j.micromeso.2010.05.012

DO - 10.1016/j.micromeso.2010.05.012

M3 - Article

SN - 1387-1811

VL - 134

SP - 216

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JO - Microporous and mesoporous materials

JF - Microporous and mesoporous materials

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