INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Efficiency of Nickel/Yttria Stabilized Zirconia Anode-supportedSolid Oxide Fuel Cell with MnFe2O4 Barrier Layer |
WU Xiaoyan1, TAN Wei2, LUO Caiwu1, ZHANG Xiaowen1, LI Mi1, FANG Qi1, TAN Wenfa1
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1 School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001 2 Graduate School, University of South China, Hengyang 421001 |
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Abstract In order to improve carbon deposition resistance of nickel/yttria stabilized zirconia (Ni-YSZ) anode-supported solid oxide fuel cell (SOFC) in carbon-containing fuels, barrier layer was prepared on the Ni-YSZ anode by screen printing in this research. The barrier layer material was spinel manganese ferrite (MnFe2O4), which was produced by high-temperature calcination. The cell with barrier layer and the blank cell were tested in simulated biosygas at 750 ℃ to compare efficiency and carbon deposition resistance. The anodes were characterized by scanning electron microscope (SEM) coupled with an INCA Energy-dispersive X-ray spectroscopy (EDS) before and after performances. Experimental results showed that there was a good matching between Ni-YSZ anode and MnFe2O4 barrier layer. A little decreasing of the cell performance was observed under operation. It was confirmed that the modified anode had an increase in carbon deposition resistance in the simulated biosyngas. The best performance was obtained when the MnFe2O4 slurry was added with 16wt% graphite. This investigation is of great significance to improve and develop the ability of the Ni-YSZ anode carbon deposition resistance with biosyngas feeding.
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Published: 31 May 2019
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Fund:This work was supported by the National Natural Science Fund for Young Scholars (51704169), the Natural Science Foundation of Hunan Province, China (2018JJ3444), the Research Foundation of Education Bureau of Hunan Province, China (17A180) and the Research Foundation for Doctors from USC (2016XQD37), the Double First Class Construct Program of USC (2017SYL05). |
About author:: Xiaoyan Wuis a lecturer at University of South China (USC). He received his Ph.D. degree from Harbin Institute of Technology in June 2016. He joined the School of Resource & Environment and Safety Enginee-ring at USC in the same year. His main research inte-rests include sludge disposal and resource utilization, solid oxide fuel cell. |
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