2012•Scientia PlenaOpen access

Influence of hydrogel aging temperature in the formation of mesoporous molecular sieve MCM-48

Tainá Gonçalves de Oliveira, Anne Michelle Garrido Pedrosa, M. Souza

Abstract

Using two temperatures different of synthesis, 120°C and 150°C, mesoporous molecular sieve MCM-48 were hydrothermally synthesized. To investigate the effect of temperature on the structure properties of materials denoted as MCM-48/120 and MCM-48/150 were characterized by X-ray diffraction (XRD), N2 adsorption-desorption and thermogravimetric analysis (TGA). Both samples resulted in cubic phase MCM-48, however the material synthesized at higher temperature showed better texturais characteristics as the highest surface area, pores volume and size.

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Available abstract

Key concepts: Molecular sieve, Thermogravimetric analysis, Mesoporous material, Materials science, MCM-41, Desorption, Chemical engineering, Sieve (category theory)