BaCe0.8Fe0.1Ni0.1O3−δ-impregnated Ni–GDC by phase-inversion as an anode of solid oxide fuel cells with on-cell dry methane reforming
| Autor: | Yanya Liu, Jun Luo, Cheng Li, Bo Liu, Dong Yan, Jian Li, Lichao Jia |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Journal of Advanced Ceramics, Vol 13, Iss 6, Pp 834-841 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2226-4108 2227-8508 |
| DOI: | 10.26599/JAC.2024.9220902 |
| Popis: | BaCe0.8Fe0.1Ni0.1O3−δ (BCFN) in a perovskite structure is impregnated consecutively by BCFN solution and BCFN suspension into a phase-inversion prepared NiO–Gd0.1Ce0.9O2−δ (GDC) scaffold as an anode for solid oxide fuel cells (SOFCs) with on-cell dry reforming of methane (DRM). The whole pore surface of the scaffold is covered by small BCFN particles formed by BCFN solution impregnation; the large pores near the scaffold surface are filled by BCFN aerogels with a high specific surface area produced by BCFN suspension impregnation, which act as a catalytic layer for on-cell DRM. After reduction, the anode consists of a Ni–GDC scaffold and BCFN particles with exsolved FeNi3 nanoparticles. This BCFN-impregnated Ni–GDC anode has higher electrical conductivity, electrochemical activity, and resistance to carbon deposition, with which the cell shows maximum power densities between 1.44 and 0.92 W·cm−2 when using H2 and between 1.09 and 0.50 W·cm−2 when using CO2–CH4 at temperatures ranging from 750 to 600 °C. A stable performance at 400 mA·cm−2 and 700 °C is achieved using 45% CO2–45% CH4–10% N2 for more than 400 h without carbon deposition, benefiting from the impregnated BCFN aerogel with a high specific surface area and water adsorbability. |
| Databáze: | Directory of Open Access Journals |
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