Effect of secondary metal catalysts on butane internal steam reforming operation of thin-film solid oxide fuel cells at 500 - 600 °C
- Effect of secondary metal catalysts on butane internal steam reforming operation of thin-film solid oxide fuel cells at 500 - 600 °C
- 이종호; 김형철; 손지원; 지호일; 윤경중; 양성은; 안 캠 티유
- Multiscale-architectured thin-film-based SOFC; Fuel flexibility; Direct internal steam reforming of n-butane; Secondary metal catalyst; catalyst; Sputtering deposition
- Issue Date
- Applied catalysis B, Environmental
- VOL 263, 118349
- Pd, Ru, and Cu secondary catalysts were incorporated into the nickel-yttria-stabilized zirconia nanostructured-anode functional layer (nano-AFL) of solid oxide fuel cells (SOFCs) by a combination of pulsed-laser-deposition and sputtering. The activity of these catalysts for direct internal steam reforming (DISR) of n-butane at the SOFC unit cell level were investigated at low temperatures (500– 600  °C) by comparing the electrochemical performance among the Ref-cell (the cell without catalyst at the nano-AFL) and Pd-, Ru-, and Cu-cell (the cells with Pd-, Ru- and Cu- incorporated at the nano-AFL). The steam-to-carbon ratio (SCR) and the operating temperature were varied and the effect on DISR of n-butane in the Ref-, Pd-, Ru-, and Cu-cell were systematically studied. Secondary catalyst incorporation appears to enhance the electrochemical reaction and thermochemical reactions, such as steam reforming and water-gas-shift reactions, which results in the cell performance improvement at all tested conditions in comparison with that of the Ref-cell.
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