期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 75, 期 2, 页码 693-698出版社
SPRINGER
DOI: 10.1023/B:JTAN.0000027164.04415.7a
关键词
MCM-41; model-free kinetics; pH adjustment; thermogravimetry
The siliceous MCM-41 molecular sieve was synthesized starting from a hydrogel with the following molar composition: 4.58SiO(2):0.437NaO: 1C-FMABr:200H(2)O. The cetyltetramethylammonium bromide (CTMABr) was used as structure template. A kinetic study of template removal after the syntheses was performed by Vyazovkin model-free kinetic method obtaining apparent activation energy of 166+/-8.2 kJ mol(-1).
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