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Synthesis of mesoporous MCM-41 materials with low power microwave heating

Ergün, Aslı and Kocabaş, Özlem Züleyha and Baysal, Mustafa and Yürüm, Alp and Yürüm, Yuda (2012) Synthesis of mesoporous MCM-41 materials with low power microwave heating. (Accepted/In Press)

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Official URL: http://www.tandfonline.com/toc/gcec20/current

Abstract

Crystalline, high surface area, hexagonal mesoporous MCM-41 having uniform pore sizes and good thermal stability was successfully synthesized at 90-120oC in 30 minutes using low power microwave irradiation. This appears to be the first comprehensive and quantitative investigation of the comparatively rapid synthesis of mesoporous MCM-41 using low power microwave heating of 80W (90oC) and 120W (120oC). The influence of reaction temperature and the duration of heating were carefully investigated and the calcined MCM-41 materials were characterized by XRD, SEM, TEM, nitrogen adsorption, TGA and FTIR. The mesoporous MCM-41 product synthesized in 30 minutes at 120W and calcined at 550oC had a very high surface area of 1438 m2/g and was highly ordered, contained uniform pores with diameters in the range of 3.5-4.5 nm. The wall thickness of the materials highly depended on the power of the microwave energy used during the synthesis. Synthesis of the mesoporous MCM-41 products at 120oC resulted with a structure having thinner walls. The mesoporous MCM-41 materials synthesized in the present work had good thermal stability.

Item Type:Article
Uncontrolled Keywords:MCM-41; Mesoporous material; Microwave heating; Surface area; Pore size
Subjects:T Technology > TP Chemical technology > TP0155-156 Chemical engineering
ID Code:19988
Deposited By:Yuda Yürüm
Deposited On:09 Nov 2012 11:41
Last Modified:22 Jan 2014 16:11

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