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Abstract With its good mechanical strength, high hydrogen permeability, and low price, the dense metal ceramic hydrogen separation membrane has attracted increasing attention. The conductivity of perovskite–type proton conductors can… Click to show full abstract
Abstract With its good mechanical strength, high hydrogen permeability, and low price, the dense metal ceramic hydrogen separation membrane has attracted increasing attention. The conductivity of perovskite–type proton conductors can be greatly improved by rare–earth doping. In this study, a new nickel/barium cerate cermet Ni–BaCe0.7In0.2Ta0.1O3–δ electron–proton mixed conducting membrane was prepared and its hydrogen permeability, proton conductivity, and chemical stability were tested. Hydrogen permeability was controlled by the bulk diffusion when the thickness was >0.8 mm, but controlled by both the surface exchange and the bulk diffusion when the thickness was
Journal Title: Separation and Purification Technology
Year Published: 2020
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