کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1644883 1517275 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Formation of silica multilamellar vesicles through dual-templating
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Formation of silica multilamellar vesicles through dual-templating
چکیده انگلیسی


• Silica multilamellar vesicles were prepared with a dual-templating approach.
• Multilamellar vesicles served as the templates for the lamellar mesopores.
• Multilamellar vesicles served as the “nucleation” sites for growing silica/surfactant micelles.

Silica multilamellar vesicles were prepared with a dual-templating approach using cetyltrimethylammonium bromide (CTAB) and 2-(perfluoro-n-octyl)ethanol (PFOE). The number of layers of the lamellar mesopores increased with increasing PFOE/CTAB molar ratio from 0.2:1 to 0.7:1. When the PFOE/CTAB molar ratios were 0.2:1 and 0.4:1, worm-like pore channels were identified near the outer surfaces, and shrunk lamellar silica shells were identified near the inner surfaces, of the shells of the vesicles. The formation of the mesopores was studied by taking TEM images after different reaction times. It was found that the multilamellar vesicles served as the templates for the lamellar mesopores and the “nucleation” sites for growing silica/surfactant micelles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 113, 15 December 2013, Pages 34–37
نویسندگان
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