Electro-catalytic performance of 60%NiO/Ce0.9Zr0.1O2 cermets as anodes of intermediate temperature solid oxide fuel cells

• Published in: Journal of power sources 2013-09, Vol.238, p.87-94
• Main Authors: Zimicz, M.G., Núñez, P., Ruiz-Morales, J.C., Lamas, D.G., Larrondo, S.A.
• Format: Article
• Language: English
• Subjects: Anodes; Applied sciences; Catalysis; Catalysts: preparations and properties; CeO2–ZrO2; Chemistry; Electrocatalytic activity; Electrochemistry; Energy; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Fuel cells; General and physical chemistry; IT-SOFCs; Metals. Metallurgy; Miscellaneous (electroosmosis, electrophoresis, electrochromism, electrocrystallization, ...); Powder metallurgy. Composite materials; Production techniques; Sintered metals and alloys. Pseudo alloys. Cermets; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2013.03.092

This paper analyses the electrocatalytic performance of a 60%NiO/Ce0.9Zr0.1O2 anode under reducing atmospheres, using a symmetric cell configuration, [anode/electrolyte/anode], with Samaria doped Ceria (SDC) as electrolyte. This anode exhibited excellent performance in H2 atmosphere in comparison with conventional anode materials. A dual chamber solid oxide fuel cell with 60%NiO/Ce0.9Zr0.1O2 anode, SDC electrolyte, and Pt cathode was constructed and tested under H2 atmospheres at intermediate temperatures. Good values of power densities were obtained, indicating the good performance of 60%NiO/Ce0.9Zr0.1O2 in the operating conditions. •A New 60%NiO/Ce0.9Zr0.1O2 (ZDC6) nanomaterial was proposed as anode of SOFCs.•These anodes were successfully fixed onto SDC disks keeping their high porosity.•Dual-chamber SOFCs with these anodes were fully characterized in pure H2.•The SOFCs exhibited good power densities of 75 mW cm−2 when operated at 650 °C.