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Direct utilization of lignite coal in CoCeO2/YSZ/Agsolid oxide fuel cell

Kaklidis N., Garagounis I., Kyriakou V., Besikiotis V., Arenillas A., Menéndez J.A., G.E. Marnellos , Konsolakis Michail

Απλή Εγγραφή

URIhttp://purl.tuc.gr/dl/dias/006A57C2-1847-4230-B0FF-FF099D8D0A80-
Αναγνωριστικόhttps://doi.org/10.1016/j.ijhydene.2015.02.007-
Γλώσσαen-
ΤίτλοςDirect utilization of lignite coal in CoCeO2/YSZ/Ag solid oxide fuel cellen
Δημιουργός Kaklidis N.en
Δημιουργός Garagounis I.en
Δημιουργός Kyriakou V.en
Δημιουργός Besikiotis V.en
Δημιουργός Arenillas A.en
Δημιουργός Menéndez J.A.en
ΔημιουργόςG.E. Marnellos en
ΔημιουργόςKonsolakis Michailen
ΔημιουργόςΚονσολακης Μιχαηλel
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
ΤύποςΠλήρης Δημοσίευση σε Συνέδριοel
ΤύποςConference Full Paperen
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by-nc-nd/4.0/en
Ημερομηνία2015-11-15-
Ημερομηνία Δημοσίευσης2014-
Θεματική ΚατηγορίαDirect carbon fuel cellsen
Θεματική ΚατηγορίαLignite fuelen
Θεματική ΚατηγορίαCo/CeO2 anodeen
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 CoCeO2/YSZ/Ag Solid Oxide Fuel Cell”, in 2014 13th International Conference on Clean Energy, doi: 10.1016/j.ijhydene.2015.02.007 en

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