Synthesis and characterization of a Ni/Ba2In0.6Ti1.4O5.7□0.3 cermet for SOFC application |
| |
| Institution: | 1. University of Nantes, Institut des Matériaux Jean Rouxel, UMR n° 6502-2, rue de la Houssinière – BP 32229 – 44322 Nantes Cedex 03, France;2. EDF, European Institute for Energy Research, Emmy Noether Strasse 11, D-76131 Karlsruhe, Germany;1. Department of Mechanical System and Design Engineering, Seoul National University of Science and Technology, Gongneung-ro 232, Nowon-gu, Seoul, 01811, Republic of Korea;2. Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul, 136-791, Republic of Korea;3. Fluid System Engineering Department, KEPCO Engineering and Construction Company, 111, Daedeok-daero 989 Beon-Gil, Yusung-Gu, Taejeon, 34057, Republic of Korea;4. Department of Safety Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea;1. M.V. Lomonosov Moscow State University, 119991 Moscow, Russia;2. Institute of Problems of Chemical Physics RAS, Academician Semenov av. 1, Chernogolovka, Moscow District 142432, Russia;1. College of Materials Science and Engineering, Nanjing Tech University, No. 5 Xinmofan Road, Nanjing, Jiangsu, 210009, PR China;2. School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore |
| |
| Abstract: | Ni-based cermets were prepared and reduced from mixtures of NiO and Ba2In0.6Ti1.4O5.7□0.3. A cermet containing 18.7 vol.% of Ni exhibits promising characteristics: 40% of open porosity and a lower DC resistivity than a Ni/YSZ cermet with a larger Ni content (30 vol.%). Its thermal expansion coefficient is 11.4 × 10? 6 K? 1 whereas that measured for Ba2In0.6Ti1.4O5.7□0.3 is 9.9 × 10? 6 K? 1. Electrical measurements vs. the Ni content have shown that the percolation threshold corresponds to 15.7 vol.% of Ni. By using saccharose as a pore former, the porosity of the electrode can be tuned. It is shown that the pore size is controlled by the particle size distribution of the pore former. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
