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Aiming at SOFC anode applications, we have synthesized nanometer-sized nickel catalysts supported on hollow spherical particles of samaria-doped ceria (Ni/SDC) by spraying a mixed solution of nickel, samarium, and cerium nitrates into an atmospheric pressure plasma. The as-prepared particles consisted of SDC (average diameter d SDC =ca. 0.8 µm) and uniformly dispersed nanometer-sized NiO particles...
Mixed conducting samaria-doped ceria (SDC) anode with highly dispersed Ni catalysts exhibited a stable high performance over 1100 h in solid oxide fuel cell (SOFC) operated at constant current density of 0.6 A cm −2 at 800 °C. While the apparent average size of Ni particles was found to be increased, both the IR-free polarization performance (reflecting an effective reaction area) and the...
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