Preparation of BaCe۰.۹Yb۰.۱O۳-δ asymmetrical membrane for hydrogen separation at high tempratures
عنوان مقاله: Preparation of BaCe۰.۹Yb۰.۱O۳-δ asymmetrical membrane for hydrogen separation at high tempratures
شناسه ملی مقاله: JR_JPSTR-1-2_008
منتشر شده در در سال 1390
شناسه ملی مقاله: JR_JPSTR-1-2_008
منتشر شده در در سال 1390
مشخصات نویسندگان مقاله:
M. Heidari - Chemical Engineering Department, Sharif University of Technology, Tehran, Iran
A. Zamanian - Gas Research Division, Research Institute of Petroleum Industry, Tehran, Iran
E. Ganji Babakhani - Gas Research Division, Research Institute of Petroleum Industry, Tehran, Iran
M. Amanipour - Chemical Engineering Department, Sharif University of Technology, Tehran, Iran
خلاصه مقاله:
M. Heidari - Chemical Engineering Department, Sharif University of Technology, Tehran, Iran
A. Zamanian - Gas Research Division, Research Institute of Petroleum Industry, Tehran, Iran
E. Ganji Babakhani - Gas Research Division, Research Institute of Petroleum Industry, Tehran, Iran
M. Amanipour - Chemical Engineering Department, Sharif University of Technology, Tehran, Iran
A mixed proton–electron conducting perovskite was synthesized by liquid-citrate method and the corresponding membrane was prepared by pressing followed by sintering. The hydrogen permeability of BaCe۰.۹Yb۰.۱O۳-δ was studied as a function of temperature and hydrogen partial pressure (PH۲) gradient. Using ۱۰۰% dry hydrogen at ۱۱۷۳ K, the hydrogen permeation rate of dense membranes (۱.۶۳ mm thick) for a mixture of ۶۰% H۲/He was ۰.۰۰۰۲۹۳ mol/(m۲ s). The phase structure of powder was characterized by X-ray diffraction and thermogravimetry (TG). Scanning electron microscopy (SEM) was used to investigate the microstructure of sintered membrane. Activation energy estimated with Arrhenius equation was ۲۹ kJ/mol.
کلمات کلیدی: Ceramic Membrane, BaCeYb, Electron/Proton Conductivity, Hydrogen Ppermeation
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1858603/