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• W3154646005 endingPage "159911" @default.
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• W3154646005 abstract "• The Ni-Fe nanofiber anode was developed via simple electrospinning method. • The Ni-Fe nanofiber anode maintained a porosity over 37% during the reduction cycle. • The Ni-Fe nanofiber cell achieved high MPD of 1.64 W/cm 2 at 1173 K. • The SOFC with fibrous Ni-Fe anode exhibited stable performance during the thermal cycling. Solid oxide fuel cells (SOFCs) are attracting much attention as alternative energy conversion devices owing to their high energy conversion efficiency and fuel flexibility. Currently, Ni-based cermets or Ni-based bimetal are often being used as anode materials for SOFCs. However, in anode materials, metallic spherical particles generally agglomerate, which affects the electrode reaction under reduction conditions at high temperature. Furthermore, such agglomeration affects both microstructure of the electrode and the cell stability. To overcome this problem, in this study, we designed a bimetallic anode and fabricate it by electrospinning. This Ni-Fe fiber anode exhibits enhanced anodic activity and tolerance to coarsening of metallic particle compared to the Ni-Fe spherical powder. The ohmic and polarization resistance of Ni-Fe fiber anode is lower than Ni-Fe powder anode at all operation temperature. In addition, the single cell using Ni-Fe fiber anode shows higher maximum power densities of 0.40, 0.80, and 1.64 W/cm 2 at 973, 1073, and 1173 K, respectively. Such enhanced power generation properties and lower resistance originated from continuous pathways for excellent charge transport pathways generated by electrospinning and the enhanced gas-diffusion properties of the nanofibers. These results demonstrate that the introduction of Ni-Fe fiber anode in SOFCs is an effective approach to enhance their power generation properties and stability." @default.
• W3154646005 created "2021-04-26" @default.
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• W3154646005 date "2021-09-01" @default.
• W3154646005 modified "2023-09-30" @default.
• W3154646005 title "Anodic properties of Ni-Fe bimetallic nanofiber for solid oxide fuel cell using LaGaO3 electrolyte" @default.
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• W3154646005 doi "https://doi.org/10.1016/j.jallcom.2021.159911" @default.
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