Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
635920 | Journal of Membrane Science | 2010 | 7 Pages |
Abstract
A thin proton conduction electrolyte BaCe0.85Y0.15O3âα (BCY15) membrane was deposited on a porous green NiO-BCY15 substrate by a modified spin-coating method. The dense, crack-free electrolyte BCY15 layer with thickness of ca. 30 μm was obtained after the bi-layer was co-sintered at 1400 °C for 5 h. With Ba0.5Sr0.5Co0.8Fe0.2O3âα as the cathode, a membrane reactor for ammonia synthesis at atmospheric pressure was assembled. The membrane reactor was characterized by field-emission scanning electron microscope (FESEM), X-ray diffraction (XRD) and electrochemical AC impedance. The peak ammonia formation rate of about 4.1 Ã 10â9 mol sâ1 cmâ2 was achieved with an imposed DC current 1 mA at 530 °C. The process based on a further optimized BCY15 membrane reactor may be a potential route for ammonia synthesis at atmospheric pressure.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
W.B. Wang, X.B. Cao, W.J. Gao, F. Zhang, H.T. Wang, G.L. Ma,