Zhigang Zhu, Honglong Ning, Chen Song, Kaisheng Lin, Taikai Liu, Kui Wen, Changguang Deng, Hanlin Liao, Min Liu
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引用次数: 0
Abstract
Metal-supported solid oxide fuel cells have broad application prospects in distributed power generation, transportation, military, and other fields. The electrochemical performance of the cell is still a challenge in commercial applications. Regulating the anode microstructure and optimizing polarization characteristics are effective methods. In this study, atmospheric plasma spraying technology is chosen to prepare the Ni-Gd0.2Ce0.8O1.9(GDC) anodes using different low plasma powers (18, 21, 24 kW), which is cost-effective and efficient. The power effect on anode microstructure and electrochemical performance is investigated. The results show that as the plasma power decreases from 24 to 18 kW, the anode’s gas permeability and three-phase reaction boundary (TPB) gradually increase. Reducing the spraying power can decrease polarization resistance and improve power density. The 18-kW anode exhibits the lowest polarization resistance and the best output performance. Open-circuit voltage and maximum power density are 1.03 V and 0.89 W cm−2 at 750 °C, respectively. The polarization resistance and total resistance are 0.19 and 0.40 Ω cm2, respectively. The experimental results prove that atmospheric plasma spraying can realize the rapid and low-cost anode preparation for high-performance MS-SOFC.
期刊介绍:
From the scientific to the practical, stay on top of advances in this fast-growing coating technology with ASM International''s Journal of Thermal Spray Technology. Critically reviewed scientific papers and engineering articles combine the best of new research with the latest applications and problem solving.
A service of the ASM Thermal Spray Society (TSS), the Journal of Thermal Spray Technology covers all fundamental and practical aspects of thermal spray science, including processes, feedstock manufacture, and testing and characterization.
The journal contains worldwide coverage of the latest research, products, equipment and process developments, and includes technical note case studies from real-time applications and in-depth topical reviews.