Characterization of IT-SOFC non-symmetrical anode sintered through conventional furnace and microwave |
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Affiliation: | 1. Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;2. Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;1. Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, Republic of Korea;2. Department of Polymer Science and Engineering, Hannam Universtiy, Daejeon 305-811, Republic of Korea;3. Department of Microbiology and Genetics, Medical School, Chonbuk National University, Jeonju 561-180, Republic of Korea;4. Department of Chemistry (Affiliated to Tribhuvan University), Kailali Multiple Campus, Dhangadhi, Kailali, Nepal;5. Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonju 561-756, Republic of Korea;6. Department of Chemistry, Inha University, 100 Inharo, Incheon 402-751, Republic of Korea;1. Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan;2. School of Chemistry, University of St Andrews, Fife, Scotland KY16 9ST, UK;1. School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China;2. Institute for Chemical Engineering Technology, Yibin University, Yibin 644000, PR China |
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Abstract: | This work investigated the mechanical and electrical properties of NiO–SDC/SDC anode sintered by two different methods: in a microwave at about 1200 °C for 1 h and in a conventional furnace at 1200 °C with a holding time of 1 h (total sintering time of 21 h). Nano-powders Sm0.2Ce0.8O1.9 (SDC) and NiO were mixed using a high-energy ball mill, followed by the co-pressing technique at a compaction pressure of 400 MPa. No binder was used between the layers. The electrical behaviors of all sintered samples were studied using electrochemical impedance spectra in the frequency range of 0.01–105 Hz under 97% H2–3% H2O, an amplitude of 10 mV, and at high temperature range of 600–800 °C. Results indicate that the non-symmetrical NiO–SDC/SDC anode achieved through microwave sintering has finer grain size and higher electrochemical performance. However, hardness and Young׳s modulus increased in the samples sintered through a conventional furnace. |
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Keywords: | A. Microwave processing A. Sintering C. Electrical conductivity E. Fuel cells |
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