Publication: Gadolinium doped ceria-impregnated nickel-yttria stabilised zirconia cathode for solid oxide electrolysis cell
Issued Date
2011-08-01
Resource Type
ISSN
03603199
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2-s2.0-79960901436
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Mahidol University
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SCOPUS
Bibliographic Citation
International Journal of Hydrogen Energy. Vol.36, No.16 (2011), 9420-9427
Suggested Citation
Pattaraporn Kim-Lohsoontorn, Yu Mi Kim, Navadol Laosiripojana, Joongmyeon Bae Gadolinium doped ceria-impregnated nickel-yttria stabilised zirconia cathode for solid oxide electrolysis cell. International Journal of Hydrogen Energy. Vol.36, No.16 (2011), 9420-9427. doi:10.1016/j.ijhydene.2011.04.199 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/11853
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Title
Gadolinium doped ceria-impregnated nickel-yttria stabilised zirconia cathode for solid oxide electrolysis cell
Abstract
Steam electrolysis (H 2 O → H 2 + 0.5O 2 ) was investigated in solid oxide electrolysis cells (SOECs). The electrochemical performance of GDC-impregnated Ni-YSZ and 0.5% wt Rh-GDC-impregnated Ni-YSZ was compared to a composite Ni-YSZ and Ni-GDC electrode using a three-electrode set-up. The electrocatalytic activity in electrolysis mode of the Ni-YSZ electrode was enhanced by GDC impregnation. The Rh-GDC-impregnated Ni-YSZ exhibited significantly improved performance, and the electrode exhibited comparable performance between the SOEC and SOFC modes, close to the performance of the composite Ni-GDC electrode. The performance and durability of a single cell GDC-impregnated Ni-YSZ/YSZ/LSM-YSZ with an H 2 electrode support were investigated. The cell performance increased with increasing temperature (700 °C-800 °C) and exhibited comparable performance with variation of the steam-to-hydrogen ratio (50/50 to 90/10). The durability in the electrolysis mode of the Ni-YSZ/YSZ/LSM-YSZ cell was also significantly improved by the GDC impregnation (200 h, 0.1 A/cm 2 , 800 °C, H 2 O/H 2 = 70/30). © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.