ISSN:
1662-0356
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Natural Sciences in General
,
Technology
Notes:
Recently, we have developed techniques to synthesize, isolate, harvest, andassemble silicalite nano-crystals into tightly bound aggregates having zeolitic domainsinterspersed by mesoporous areas. Crystals with well-defined zeolite structure, as smallas 45 nm, have been synthesized then assembled into aggregate particles or planar films.This talk will touch briefly on two of these synthesis techniques, some characterizationsof these aggregated nanocrystals, and some projections for future work in the area.Oriented films of zeolite crystals also can be prepared, using a concentratedprecursor solution; an example of this process will be shown from prior work.Silicalite-1 microspheres, using a Dowex® ion-exchange resin as a macrotemplate,were prepared in the size range of ~.5-.65 mm, using hydrothermal synthesis times of 25h, 35 h, and 45 h at 80 oC. Steaming time and temperature studies were also performed todetermine the effect on the quality of the calcined product
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.45.2096.pdf
Permalink