کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
75563 49118 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of nanocomposite MCM-41 (‘LUS’) ceramic membranes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Synthesis and characterization of nanocomposite MCM-41 (‘LUS’) ceramic membranes
چکیده انگلیسی

A new type of nanocomposite membranes, MCM-41 (‘LUS’)-based material networks grown into porous ceramic membrane support walls (alumina and zirconia), were prepared. Physical characterization (low-angle XRD, TPD, SEM–EDX) confirm the sole presence of the LUS mesostructure (BJH pore size  ≈ 3.2 nm), and in a high enough amount to plug the pores of the tubular supports. Single gas hydrodynamic characterization shows that the contribution of defects (i.e. viscous flux) is negligible or comparable to reference mesoporous commercial membranes (5 nm pore size γ-alumina), but with a considerably enhanced permeance for gases and water, as well as, a single pore size. When compared to literature results on similar organized mesoporous membranes, this work shows even greater improvements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 115, Issues 1–2, 1 October 2008, Pages 40–50
نویسندگان
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