ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
We demonstrate here a self-formation phenomenon of hierarchy with multiple-scaled porosity.Macrochanneled structures, labelled as CMI-7, with openings ranging from 0.5 to 5.0 microns andwormhole-like mesoporous walls with various ceramic compositions, such as ZrO2, TiO2, Al2O3, Y2O3,ZrO2-SiO2, ZrO2-TiO2, ZrO2-Y2O3,…, aluminosilicates, aluminophosphates, silicoaluminophosphates,metallophosphates, can be prepared by just controlling the hydrolysis and polycondensation rates of thepre-selected ceramic sources. The macrochannels (funnel-like or straight) are well parallel each other andperpendicular to the tangent of the particles’ surface. These hierarchical porous ceramics can be used incatalysis, separation and for immobilization of biological molecules and even microorganisms forfiltration and bioreactor applications
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1933.pdf
