کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4989071 | 1455976 | 2017 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
CO2 capture performance of silver-carbonate membrane with electrochemically dealloyed porous silver matrix
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Developing advanced cost-effective, energy-efficient and CO2-selective carbon capture technologies to curb carbon emissions and mitigate global warming effect is of paramount importance to a sustainable future. In the present study, we report on the permeation performance of a silver-carbonate dual-phase CO2 separation membrane with the porous silver matrix prepared by electrochemical dealloying method. The membrane exhibits excellent CO2/O2 flux densities of 0.6/0.37, 0.74/0.47, 0.89/0.59 and 1.02/0.75 ml/min cm2 at 600, 625, 650 and 675 °C respectively, and stability over 500 h with a very low leakage rate. A new transport mechanism involving the change of dominant reactive sites from triple phase boundaries to two-phase boundaries is also proposed to understand behaviors of the membrane exhibited during the CO2/O2 permeation process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 523, 1 February 2017, Pages 439-445
Journal: Journal of Membrane Science - Volume 523, 1 February 2017, Pages 439-445
نویسندگان
Jie Fang, Nansheng Xu, Tianrang Yang, Peng Zhang, Jingjing Tong, Kevin Huang,