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Direct utilization of lignite coal in a Co–CeO2/YSZ/Ag solid oxide fuel cell

Kaklidis Nikolaos, Garagounis Ioannis, Kyriakou Vasileios, Besikiotis Vasleios, Arenillas Anna, Menéndez J.A., Marnellos Giorge E., Konsolakis Michail

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/65A6227A-A390-4C3D-8426-D9F9FB4CE2D2-
Αναγνωριστικόhttps://doi.org/10.1016/j.ijhydene.2015.02.007-
Γλώσσαen-
Μέγεθος10en
ΤίτλοςDirect utilization of lignite coal in a Co–CeO2/YSZ/Ag solid oxide fuel cellen
Δημιουργός Kaklidis Nikolaosen
Δημιουργός Garagounis Ioannisen
Δημιουργός Kyriakou Vasileiosen
Δημιουργός Besikiotis Vasleiosen
Δημιουργός Arenillas Annaen
Δημιουργός Menéndez J.A.en
Δημιουργός Marnellos Giorge E.en
ΔημιουργόςKonsolakis Michailen
ΔημιουργόςΚονσολακης Μιχαηλel
ΕκδότηςElsevieren
ΠεριγραφήΔημοσίευση σε επιστημονικό περιοδικόel
ΠερίληψηThe feasibility of employing lignite coal as a fuel in a Direct Carbon Fuel Cell (DCFC) of the type: lignite|Co–CeO2/YSZ/Ag|air is investigated. The impact of several parameters, related to anodic electrode composition (20, 40 and 60 wt.% Co/CeO2), cell temperature (700–800 °C), carrier gas composition (CO2/He mixtures), and total feed flow rate (10–70 cm3/min), was systematically examined. The effect of molten carbonates on DCFC performance was also investigated by employing a eutectic mixture of lithium and potassium carbonates as carbon additives. In the absence of carbonates, the optimum performance (∼10 mW cm−2 at 800 °C), was achieved by employing 20 wt.% Co/CeO2 as anodic electrode and pure CO2 as purging gas. An inferior behavior was demonstrated by utilizing He instead of CO2 atmosphere in anode compartment and by increasing purging gas flow rate. Carbonates infusion into lignite feedstock resulted in a further increase of maximum power density up to 32%. The obtained findings are discussed based also on AC impedance spectroscopy measurements, which revealed the impact of DCFC operating parameters on both ohmic and electrode resistances.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-11-04-
Ημερομηνία Δημοσίευσης2015-
Θεματική ΚατηγορίαDirect carbon fuel cellsen
Θεματική ΚατηγορίαLignite fuelen
Θεματική ΚατηγορίαCarbonatesen
Βιβλιογραφική ΑναφοράN. Kaklidis, I. Garagounis, V. Kyriakou, V. Besikiotis, A. Arenillas, J.A. Menéndez, G.E. Marnellos and M. Konsolakis, "Direct utilization of lignite coal in a Co–CeO2/YSZ/Ag solid oxide fuel cell," International Journal of Hydrogen Energy, vol. 40, no. 41, pp. 14353–14363, Nov. 2015. doi: 10.1016/j.ijhydene.2015.02.007en

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