Hydrogen separation through tailored dual phase membranes with nominal composition BaCe_0.8Eu_0.2O_3-δ:Ce_0.8Y_0.2O_2-δ at intermediate temperatures.

ABSTRACT: Hydrogen permeation membranes are a key element in improving the energy conversion efficiency and decreasing the greenhouse gas emissions from energy generation. The scientific community faces the challenge of identifying and optimizing stable and effective ceramic materials for H₂ separation membranes at elevated temperature (400-800 °C) for industrial separations and intensified catalytic reactors. As such, composite materials with nominal composition BaCe_0.8Eu_0.2O_3-δ:Ce_0.8Y_0.2O_2-δ revealed unprecedented H₂ permeation levels of 0.4 to 0.61 mL·min^-1·cm^-2 at 700 °C measured on 500 μm-thick-specimen. A detailed structural and phase study revealed single phase perovskite and fluorite

SUBMITTER: Ivanova ME 

PROVIDER: S-EPMC5095711 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature