A. Kaiser

A.J. Glasscock

Bayraktar

Chanda

Chatzichristodoulou

Clemens

D.K. Ramachandran

Delbos

F. Clemens

Heiber

Hendriksen

Jtilich

Kaiser

Kwok

Lipińska-Chwałek

M. Søgaard

Salehi

Shiratori

Sunarso

Trunec

Zhang

Porous magnesium oxide (MgO) structures were prepared by thermoplastic processing for use as supports in asymmetric thin film oxygen transport membranes (OTMs). The open porosity, pore size distribution, and resulting gas permeability of the MgO structures were measured for different feedstock compositions and sintering temperatures. For a composition with 19 vol.% graphite as a pore‐former, sintering temperatures of 1300 °C and 1400 °C, resulted in support porosities of 36% and 26%, respectively, and gas permeabilities of 1.4 × 10‐16 m2 and 3.1 × 10‐16 m2, respectively. Electron microscopy showed that the unexpected increase in gas permeability at temperatures above 1300 °C was a result of the growth of macro‐pores and the opening of bottle‐neck pores which resulted in improved pore connectivity. Mercury intrusion porosimetry experiments confirmed an increase in average pore size for samples sintered above 1300 °C, despite a significant decrease in total porosity.</p

Kothanda Ramachandran, Dhavanesan

Clemens, F.

Glasscock, Julie

Søgaard, Martin

Kaiser, Andreas

Online Research Database In Technology

Tailoring the microstructure of porous MgO supports for asymmetric oxygen separation membranes: Optimization of thermoplastic feedstock systems

Crossref

Ceramics International

http://orbit.dtu.dk/ws/files/89911950/Tailoring_the_microstructure.pdf

Tailoring the microstructure of porous MgO supports for asymmetric oxygen separation membranes: Optimization of thermoplastic feedstock systems

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Online Research Database In Technology

Crossref