| Preparation and hydrogen permeation properties of BaCe_(0.95)Nd_(0.05)O_(3-δ) membranes |
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| 作者姓名： | Ming Ya Cai~a Hui Xia Luo~a Zhong Li~a Armin Feldhoff~b Jürgen Caro~b Hai Hui Wang~ |
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| 作者单位： | Institute of Physical Chemistry and Electrochemistry，Leibniz University Honnover，Callinstr 3-3.4，D-30179 Hannover，Germany，Institute of Physical Chemistry and Electrochemistry，Leibniz University Honnover，Callinstr.3-3.4，D-30179 Hannover，Germany |
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| 摘 要： | Dense mixed proton and electron conducting membrane made of BaCe_(0.95)Nd_(0.05)O_(3-δ)(BCNd5)was prepared by pressing followed by sintering.X-ray diffraction(XRD)was used to characterize the phase structure of both the powder and the sintered membranes.The microstructure of the sintered membranes was studied by scanning electron microscopy(SEM).Hydrogen permeation through the BCNd5 membrane was studied using a high temperature permeator.The hydrogen permeation fluxes under wet conditions are higher than those under dry conditions,which is due to H~ hopping via surface OH groups.At 925℃,a hydrogen permeation flux of 0.02 mL/min cm~2 was obtained under wet condition,which recommends BCNd5 as a potential material for hydrogen-selective membranes.
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