کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
634039 | 1456053 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Galvanic hydrogen pumping in the protonic ceramic perovskite BaCe0.2Zr0.7Y0.1O3âδ
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Galvanic hydrogen pumping in the protonic ceramic perovskite BaCe0.2Zr0.7Y0.1O3âδ Galvanic hydrogen pumping in the protonic ceramic perovskite BaCe0.2Zr0.7Y0.1O3âδ](/preview/png/634039.png)
چکیده انگلیسی
A series of experiments were performed on tubular BaCe0.2Zr0.7Y0.1O3âδ (BCZY27) protonic ceramic hydrogen diffusion membranes in which hydrogen flux was obtained using a tube-in-shell test apparatus with a 22-cm2 membrane active area and hermetic glass seals. This was accomplished by measuring permeate composition using a mass spectrometer and bubble-meter measurement of outlet flow rates over a broad range of current densities and furnace temperatures. A maximum current efficiency of 98.6% was achieved at 775 °C at 800 mA cmâ2, producing over 6 nmL cmâ2 minâ1 of hydrogen at virtually 100% selectivity. The data generated through these experiments has been valuable in the evaluation of fabrication methods and hermetic sealing techniques required for large area membranes that are suitable for commercialization. Applications include hydrogen separation, ammonia synthesis and gas-to-liquids fuel processing via methane dehydrogenation. Additionally, the experiments provided valuable insight into the charge-transport processes in BCZY27 membranes where multiple charge carrier species are involved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 446, 1 November 2013, Pages 99-105
Journal: Journal of Membrane Science - Volume 446, 1 November 2013, Pages 99-105
نویسندگان
Shay Robinson, Anthony Manerbino, W. Grover Coors,