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Mesoporous spinel MgAl2O4 prepared by in situ modification of boehmite sol particle surface: I Synthesis and characterization of the unsupported membranes by X.-L. Pan; S.-S. Sheng; G.-X. Xiong; K.-M. Fang; S. Tudyka; N. Stroh; H. Brunner is a Materials Science article available to read on EtoBox.

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Mesoporous spinel membranes as ultrafiltration membranes were prepared through a novel sol-gel technique. By in situ modification of the sol particle surface during the sol-gel process, control of the material structure on a nanometer scale from the earliest stages of processing was realized. Nano-particles with a chocolate-nut-like morphology, i.e. spinel MgAl 2 O 4 as a shell and g-Al 2 O 3 as a core, were first revealed by HRTEM results. The formation of the spinel phase was confirmed by X-ray diffraction (XRD). N 2 adsorption -desorption results showed that the mesoporous membranes had a narrow pore size distribution.

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Author

X.-L. Pan; S.-S. Sheng; G.-X. Xiong; K.-M. Fang; S. Tudyka; N. Stroh; H. Brunner

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0927-7757)

Published

2001

Language

EN

Field

Materials Science (Physical Sciences)