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:
Mesoporous MCM-41 materials were prepared using the conventional thermal and microwaveheating method. Both in conventional thermal and microwave heating synthesis of MCM-41, tetraethylorthosilicate (TEOS) and cetyltrimethyl ammonium bromide (CTAB) were used as Si source and template,respectively. Microwave heating was carried out in a modified 400 W, 2.45 GHz microwave oven.In both methods, the crystallization temperatures was 70 °C and crystallization time was 3~12 h. Theprepared MCM-41 samples were characterized by XRD, TEM and SEM. The XRD patterns of MCM-41samples prepared from both the methods were typical of a relatively well ordered material. TEM resultsalso revealed that the MCM-41 samples prepared from both the methods possess the regular hexagonalarray of mesoporous channels. On the contrary, SEM has shown the difference in morphologies of theMCM-41 samples prepared from both the methods. The samples prepared by conventional thermalheating method mainly consist of irregular and small particles, whereas the samples prepared by microwaveheating method have elongated rope-like structure and their length extends longer than 10 μm
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1316.pdf
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