High performance of direct methane-fuelled solid oxide fuel cell with samarium modified nickel-based anode |
| |
| Affiliation: | 1. Shandong University of Science and Technology, 579 Qianwangang Road, Qingdao, 266590, China;2. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China;1. Shandong University of Science and Technology, 579 Qianwangang Road, 266590 Qingdao, China;2. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, 116023 Dalian, China;1. Hydrogen Laboratory COPPE, Metallurgical and Materials Engineering, Federal University of Rio de Janeiro, 21942-971, Rio de Janeiro, RJ, Brazil;2. Centre for Fuel Cell and Hydrogen Research – School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK;3. Fuel Cell Laboratory – Korea Institute of Energy Research, 152, Gajeong-ro, Yuseong-gu, Daejeon, 34129, South Korea;1. School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China;2. Department of Mechanical Engineering, University of South Carolina, Columbia, SC, 29208, United States;3. Center for Fuel Cell Innovation, School of Materials Science and Engineering, State Key Lab of Material Processing and Die & Mound Technology, Huazhong University of Science and Technology, Wuhan, 430074, China |
| |
| Abstract: | Natural gas is one of the most attractive fuels for solid oxide fuel cell (SOFC), while the anode activity for methane fuel has a great influence on the performance and stability of SOFC. Samarium is a good catalyst promoter for methane reforming. In this work, samarium is used to modify nickel catalyst, which results in small nickel oxide particles. The SmNi-YSZ (yttria-stabilized zirconia) anode has smaller particles and better interfacial contact between nickel and YSZ compared with conventional Ni-YSZ anode. The fine structure of SmNi-YSZ anode results in high activity for electrochemical oxidation of hydrogen and low polarization resistance of the cell. The performance of SmNi-YSZ anode cell with humidified methane as fuel is greatly improved, which is similar to that with hydrogen as fuel. The maximum power densities of SmNi-YSZ anode cell are 1.56 W cm?2 for humidified hydrogen fuel and 1.54 W cm?2 for humidified methane fuel at 800 °C. The maximum power density is increased by 221% when samarium is used to modify Ni-YSZ anode for humidified methane fuel at 650 °C. High cell performance results in good stability of SmNi-YSZ anode cell and the cell runs stably for more than 600 min for humidified methane fuel. |
| |
| Keywords: | Solid oxide fuel cell SmNi-YSZ anode Three-phase boundary Methane Electrochemical oxidation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
