کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1465308 989688 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced oxygen permeation through perovskite hollow fibre membranes by methane activation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Enhanced oxygen permeation through perovskite hollow fibre membranes by methane activation
چکیده انگلیسی

Hollow fibre membranes of mixed conducting perovskite La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) were prepared via the combined phase inversion and sintering technique. The fibres were tested for air separation with a home-made reactor under the oxygen partial pressure gradient generated by the air/He streams. Some fibres were in situ activated by introducing methane in the He sweeping gas at high temperatures. The activated membranes with new morphology were created by transforming the inner densified surface layer to a porous structure. Compared to the original membranes, the activated gave appreciable higher oxygen fluxes. At 800 °C, the oxygen fluxes were increased by a factor of 10 after activation was carried out at 1000 °C for 1 h.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 35, Issue 4, May 2009, Pages 1435–1439
نویسندگان
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