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Catalytic and electrocatalytic behavior of Ni-based cermet anodes under internal dry reforming of CH4 + CO2 mixtures in SOFCs

Gentekakis Ioannis, Nalbandian L., Kiousis V., Goula G.

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URIhttp://purl.tuc.gr/dl/dias/4125E0F3-419C-4429-9CC8-ADEC7B2E4776-
Identifierhttp://www.sciencedirect.com/science/article/pii/S0167273806002001-
Identifierhttps://doi.org/10.1016/j.ssi.2006.03.040-
Languageen-
Extent5 pagesen
TitleCatalytic and electrocatalytic behavior of Ni-based cermet anodes under internal dry reforming of CH4 + CO2 mixtures in SOFCsen
CreatorGentekakis Ioannisen
CreatorΓεντεκακης Ιωαννηςel
CreatorNalbandian L.en
CreatorKiousis V.en
CreatorGoula G.en
PublisherElsevieren
Content SummaryA high temperature (700–900 °C) SOFC with yttria stabilized zirconia (YSZ) solid electrolyte was constructed and tested on direct feed of simulated biogas (CH4 + CO2) mixtures. Both catalytic, i.e. open-circuit, and electrocatalytic, i.e. closed-circuit, measurements were carried out. Open-circuit kinetic data showed that the rate of the catalytic reaction of the dry(CO2)-reforming of methane is maximized at about equimolar CO2/CH4 feed ratio for all temperatures studied. Closed-circuit data showed that cell output characteristics (i.e. current and power densities) are also maximized for equimolar CO2/CH4 biogas composition. Power densities up to 51.6 mW/cm2 (at V = 453 mV, i = 114 mA/cm2, T = 875 °C) have been obtained. Long-term operation experiments demonstrated that the constructed biogas fuel cell has very stable behavior for all three different simulated biogas compositions fed, including poor, equimolar and rich methane constitutions.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-11-16-
Date of Publication2006-
SubjectYSZ–SOFCen
SubjectBiogasen
SubjectMethane internal dry reformingen
SubjectNi cermeten
SubjectPerovskiteen
Bibliographic CitationG. Goula, V. Kiousis, L. Nalbandian and I. V. Yentekakis, "Catalytic and electrocatalytic behavior of Ni-based cermet anodes under internal dry reforming of CH4 + CO2 mixtures in SOFCs", Solid State Ion., vol. 177, no. 19-25, pp. 2119-2123, Oct. 2006. doi:10.1016/j.ssi.2006.03.040en

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