期刊
SOLID STATE IONICS
卷 192, 期 1, 页码 571-575出版社
ELSEVIER
DOI: 10.1016/j.ssi.2010.05.003
关键词
Carbon deposition; Micro-Raman spectroscopy; Yttria stabilized zirconia (YSZ); Scandia stabilized zirconia (ScSZ); Gadolinia doped ceria (GDC); SOFC; Anode; Nickel based-cermet
Distribution of deposited carbon at early stage is investigated by micro-Raman spectroscopy. Model samples consisting of nickel films sputtered on oxide substrates were used. Carbon deposition treatment was carried out for three nickel/oxide systems: Ni/YSZ (Yttria Stabilized Zirconia), Ni/ScSZ (Scandia Stabilized Zirconia), and Ni/GDC (Gadolinia doped ceria) at 873 K under dry 4.9% CH4/Ar gas. Significant carbon deposition was observed on the nickel surfaces for both Ni/YSZ and Ni/ScSZ. No carbon was observed on the nickel surfaces of Ni/GDC system. According to Raman spectra, the deposited carbon bonding state was similar between Nil YSZ and Ni/ScSZ systems and it correspond to a graphitic phase. (C) 2010 Elsevier B.V. All rights reserved.
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