Kinetic study of template removal of MCM-41 nanostructured material

被引：38
|
作者：
Souza, MJB
Silva, AOS
Aquino, JMFB
Fernandes, VJ
Araújo, AS
机构：
[1] Univ Fed Rio Grande do Norte, Dept Quim, BR-59078970 Natal, RN, Brazil
[2] Univ Fed Rio Grande do Norte, Dept Engn Quim, BR-59078970 Natal, RN, Brazil
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2004年 / 75卷 / 02期
关键词：
MCM-41; model-free kinetics; pH adjustment; thermogravimetry;
D O I：
10.1023/B:JTAN.0000027164.04415.7a
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
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).
引用
收藏
页码：693 / 698
页数：6
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