Ni-Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-Delta Anode Composites for Proton Conducting Solid Oxide Fuel Cells (H-SOFCs)
Date
2016-09-01
Journal Title
Journal ISSN
Volume Title
Publisher
Canadian Center of Science and Education
Abstract
In this paper, we report the electrochemical properties of Ni-Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-Delta (BSCZGY) anode composites in 3% H2O-H2 for proton conducting solid oxide fuel cells (H-SOFCs). Ni-BSCZGY composites with volume ratio of 30:70, 40:60, and 50:50 were synthesised through mechanical mixing and combustion methods. In combustion method, auto-ignition step led to brown coloured ash, which was calcined at 1000 oC for 5 h to form NiO-BSCZGY powder. Screen-printing, co-firing and reduction process were used to prepare the symmetrical cell: Ni-BSCZGY/BSCZGY/Ni-BSCZGY. Ni50-BSCZGY anode exhibited the lowest polarisation resistance (Rp) of 0.8 Omega.cm2 and 1.9 Omega.cm2 at 710 oC under 3% H2O-H2, for both mechanically mixed and combustion methods, respectively.
Description
Keywords
composite anodes, combustion synthesis, proton conducting solid oxide fuel cells, symmetrical cell, polarisation resistance, hydrogen oxidation reaction (HOR)
Citation
Singh, K., Baral, A. K., & Thangadurai, V. (2016). Ni-Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-Delta Anode Composites for Proton Conducting Solid Oxide Fuel Cells (H-SOFCs). Journal of Materials Science Research, 5(4), 34. https://doi.org/10.5539/jmsr.v5n4p34