کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
676094 887750 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Kinetic parameters of surfactant remotion occluded in the pores of the AlMCM-41 nanostructured materials
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Kinetic parameters of surfactant remotion occluded in the pores of the AlMCM-41 nanostructured materials
چکیده انگلیسی

A series of AlMCM-41 molecular sieves was synthesized starting from a hydrogel with the following molar composition: 1CTMABr:4.58SiO2:(0.437 + X)Na2O:XAl2O3:200H2O. Tetramethylammonium silicate (TMAS) was used as silicon source and cethyltrimethylammonium bromide (CTMABr) was used as structure template. The obtained materials were characterized by nitrogen adsorption, XRD, FT-IR and TG/DTG. Model-free kinetic algorithms were applied in order to determinate conversion, isoconversion and apparent activation energy to decomposition of CTMA+ species from the AlMCM-41 materials with different silicon/aluminium (Si/Al) ratios of 20, 40, 60 and 80.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 443, Issue 2, 15 April 2006, Pages 183–188
نویسندگان
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