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High Performance Anodes for SOFCs Operating in Methane-Air Mixture at Reduced Temperatures
- Source :
- Journal of The Electrochemical Society. 149:A133-A136
- Publication Year :
- 2001
- Publisher :
- The Electrochemical Society, 2001.
-
Abstract
- Electrocatalytic oxidation of methane over anodes in single-chamber solid oxide fuel cells, 0-10 wt % Pd-30 wt % Ce 0.8 Sm 0.2 O 1.9 (samaria-doped ceria, SDC)- Ni | SDC | Sm 0.5 Sr 0.5 CoO 3 , was studied in a mixture of methane and air between 450 and 550°C. The addition of a small amount of Pd (0.145 mg cm−2) to the anode significantly promoted the partial oxidation of methane by oxygen to form hydrogen and carbon monoxide, which resulted in electromotive forces of ca. 900 mV from the cell and extremely small electrode-reaction resistances of the anode. The peak power densities, when using a 0.15 mm thick SDC electrolyte, reached 644, 467, and 269 mW cm−2 at 550, 500, and 450°C, respectively. © 2002 The Electrochemical Society. All rights reserved.
- Subjects :
- Hydrogen
Renewable Energy, Sustainability and the Environment
Analytical chemistry
Oxide
Mineralogy
chemistry.chemical_element
Electrolyte
Condensed Matter Physics
Methane
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Anode
chemistry.chemical_compound
chemistry
Materials Chemistry
Electrochemistry
Solid oxide fuel cell
Partial oxidation
Carbon monoxide
Subjects
Details
- ISSN :
- 19457111 and 00134651
- Volume :
- 149
- Database :
- OpenAIRE
- Journal :
- Journal of The Electrochemical Society
- Accession number :
- edsair.doi...........a6d5294094357c1c19cb7907f8153f14