Preparation and Characterization of Nickel-Based Anode-Supported SDC Half Cell by Tape Casting, Laminating and Co-Sintering

Abstract:

NiO/YSZ (6:4 wt.%) and NiO/SDC (6:4 wt.%) anodes, NiO/YSZ (SDC) anode-supported SDC electrolyte half cell were fabricated by tape casting, laminating and co-sintering technique. The laminating temperature was chosen to be 85¡æ that was above the glass transition temperature of PVA binder. Laminating pressure of 30-70 MPa was tried and it was found that 50 MPa was the best. Some unreacted CeO₂ was decomposed between 1365-1393¡æ and Sm₂NiO₄ compound was formed in NiO-based complexes at about 1445-1448¡æ. The sintering temperature of 1400 ¡æ was selected. The flexural strength of NiO/SDC anode (with an open porosity of 22.7%) and NiO/YSZ anode (with an open porosity of 21.2%) was 68.8 and 165.6 MPa, respectively. The flexural strength of as-fabricated NiO/YSZ anode achieved the requirement of the mechanical property for anode-supported SOFCs. SDC electrolyte with dense, crackfree and uniform structure was successfully adhered to the porous and homogeneous NiO/YSZ anode.

• Periodical: Advanced Materials Research (Volume 787)
• Pages: 520-524
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.787.520
• Online since: September 2013
• Authors: Xi Bao Li, Zhen Yi Nie, Ze Jun Xiong, Zi Liang Ma, Jian Qiang Zhang
• Keywords: Anode-Supported, Co-Sintering, Laminating, SOFCs, Tape Casting

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