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Received April 1, 2020
Accepted May 11, 2020
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Ultra-fast fabrication of anode-supported solid oxide fuel cells via microwave-assisted sintering technology
Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea 1Department of Mechanical Engineering, KAIST, Daejeon 34141, Korea
leekt@kaist.ac.kr
Korean Journal of Chemical Engineering, August 2020, 37(8), 1436-1439(4), 10.1007/s11814-020-0578-2
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Abstract
We demonstrate ultra-fast fabrication of anode-supported solid oxide fuel cells (SOFCs) using microwaveassisted sintering technology. Due to the nature of microwaves that transfers heat directly into the material, the SOFC sintering process was completed within 8 h, ~ six times faster compared to a conventional sintering process (~47 h). Despite extremely rapid processing time, the microstructure of the SOFC fabricated by microwave-assisted sintering (M-SOFC) was almost identical to that of the conventionally sintered SOFC. Moreover, the electrochemical performance of the M-SOFC at 750 °C was 0.52 W/cm2 in peak power density, which is even higher than that of the conventionally sintered sample (0.49W/cm2). Thus, our results demonstrate that the ultra-fast microwave-assisted sintering process is a highly effective and practically promising technology for fabricating high performance SOFCs.
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References
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Gansor P, Sabolsky K, Zondlo JW, Sabolsky EM, Mater. Lett., 105, 80 (2013)
