Investigation of MgO promoted NiO:SDC anode material for intermediate temperature solid oxide fuel cells

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DOIResolve DOI: http://doi.org/10.1149/1.3570155
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TypeArticle
Proceedings titleECS Transactions
Conference12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting, 1 May 2011 through 6 May 2011, Montreal, QC
ISSN1938-5862
ISBN9781607682363
Volume35
Issue2 PART 2
Pages16831688; # of pages: 6
SubjectActive metals; Anode material; Doped-ceria; Electrochemical impedance spectra; Electrochemical performance; Intermediate temperature solid oxide fuel cell; Intermediate temperatures; IT-SOFCs; Maximum power density; NiO-SDC; Oxide ions; Polarization curves; Polarization resistances; Anodes; Cerium compounds; Cytology; Hydrogen; Metals; Methane; Solid oxide fuel cells (SOFC)
AbstractThis paper investigated the electrochemical performance of Ni 0.9Mg 0.1O-SDC for hydrogen and methane fueled IT-SOFCs using an electrolyte-supported button cells. The Ni 0.9Mg 0.1O-SDC anode has been chosen based on the premises that the doped-ceria is suitable for intermediate temperatures (550-800°C); that Ni is known as an active metal and good electron conductor; that MgO is a promoter to avoid agglomeration of Ni during reduction and to achieve higher Ni dispersion; and finally, that CeO 2-Sm 2O 3 (SDC) improves oxide ion transport to the cell at this intermediate temperature range. Electrochemical performances under humidified hydrogen and methane were carried out at 650, 700 and 750°C and tested using polarization curve and electrochemical impedance spectra. Adding MgO to NiO-SDC anode improved the maximum power density and lowered the polarization resistance of the cell. ©The Electrochemical Society.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Chemical Process and Environmental Technology (ICPET-ITPCE)
Peer reviewedYes
NPARC number21271202
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Record identifierec396d34-a0f4-4bea-a990-cbe4af1d0b63
Record created2014-03-24
Record modified2016-05-09
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