Effect of Co2O3 as sintering aid on perovskite BaCe0.8Y0.2O3-δ proton conductive membrane for hydrogen separation.

BaCe 0.8 Y 0.2 O 3-δ proton conductor powder was prepared by sol-gel method, and the effects of sintering temperature and sintering aids addition on the mechanical properties and hydrogen permeability of BaCe 0.8 Y 0.2 O 3-δ proton conductor were investigated. XRD tests showed that when the addition of sintering aid Co 2 O 3 reached 5%, the BaCe 0.8 Y 0.2 O 3-δ proton conductor still showed a good perovskite phase. The sintering temperature of the sample with sintering aid is significantly lower than that of the blank sample. SEM shows that the addition of Co 2 O 3 , the proton conductor grains are closely arranged, the mechanical properties are increased, and the hydrogen permeability is significantly improved. • Co 2 O 3 was selected as an important sintering aid material. • The effect of sintering aid Co 2 O 3 on the mechanical properties of BCY was discussed. • The effect of sintering aid Co 2 O 3 on the hydrogen permeability of BCY was discussed. [ABSTRACT FROM AUTHOR]