Comparison of Ni_0.8Cu_0.2O_x Anode Material Prepared with Sol-Gel Method and Ni_0.8-Cu_0.2-Coated YSZ Composite Anode Material Prepared with Polyol Method

Abstract:

This paper elaborates Ni_0.8-Cu_0.2-coated YSZ material prepared with the hard template method and the polyol method, with the composition and microstructure being analyzed with X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). With YSZ as electrolyte material, LSM as cathode material and Ni_0.8Cu_0.2O_x prepared with sol-gel method and partially-tubular YSZ material coated with Ni_0.8-Cu_0.2 as anode material, electrolyte-supported cells were prepared, and with methane as fuel gas, the electrical properties of cells were determined. It was indicated that Ni and Cu prepared with traditional sol-gel method and YSZ were granular structure, and the contact area was small relatively. The new material prepared was a mixture of Ni, Cu and YSZ, where the YSZ was of partial fiber-tubular structure and the Ni and Cu granules were applied to the interior and exterior surfaces of the structure. It was able to effectively increase the contact surface of catalytic metal and electrolyte, which added to the three phase boundary of the SOFC anode and lead to power performance 80% higher than the former.

• Periodical: Advanced Materials Research (Volume 853)
• Pages: 116-122
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.853.116
• Online since: December 2013
• Authors: Hong Xin You*, Bin Qu, Lei Cao
• Keywords: Anode Material, Hard Template Method, Metal Cu, Metal Ni, Polyol Method, SOFC, Sol-Gel Method

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