کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5182463 1380990 2012 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molecular design of nanohybrid gas separation membranes for optimal CO2 separation
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Molecular design of nanohybrid gas separation membranes for optimal CO2 separation
چکیده انگلیسی

Organic-inorganic materials comprising CO2-philic components may yield superior CO2 transport properties and good CO2/H2 gas selectivity. We report that a fine balance in size heterogeneity in the silicon-based structures is essential and a mixture of sizes up to 50 nm surrounded by 5-15 nm silicon-based nanostructures is the preferred inorganic phase morphology that yields optimal nanohybrid membranes. The combination of optimal synthesis conditions i.e. water/silicon ratio, condensation and ozone pre-treatment durations yields a nanohybrid membrane with a CO2 permeability of 2000 Barrer while achieving a CO2/H2 selectivity of 11. The findings of this work are important for the design of gas separation membranes using green materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 53, Issue 2, 24 January 2012, Pages 454-465
نویسندگان
, , ,