Effect of carbon type on the performance of a direct or hybrid carbon solid oxide fuel cell

Kaklidis, N.; Kyriakou, V.; Garagounis, I.; Arenillas, A.; Menéndez, J.Á.; Marnellos, George E.; Konsolakis, Michalis

doi:10.1039/c4ra01022a

Cited by 48 publications

(88 citation statements)

References 28 publications

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“…The highest maximum power density of 71.88 mW cm -2 is obtained by the cell with B-II fuel. This power output obtained in this study is on the top level among reports in literature concerning electrolyte-supported cells 4,12,18 . The values achieved here are better than those of cells operating at a higher temperature (850 °C), even though a thinner YSZ electrolyte (0.5 mm) and a composite electrode of Ni-GDC-YSZ are used.…”

Section: Electrochemical Performance Of the Cell With Different Typesmentioning

confidence: 54%

“…As one of the main types of coal, anthracite coal is suggested as a good candidate for DCFCs due to its high carbon content, usually is above 90%, but there are not many publications about anthracite fuel for DCFCs. 3,4 In our previous research, we initially discussed the effect of chemical compositions (e. g. carbon content, P D F C r e a t e 8 T r i a l w w w . n u a n c e .…”

Section: Introductionmentioning

confidence: 99%

“…Recent work on coal fuel cells was renewed by the energy demands for the reduction of CO 2 emissions. Researchers have focused on the application of different types of coal samples in DCFCs 3,4 . So far, lignite, bituminous and anthracite coal have been tested in DCFCs [5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

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Comparative study of durability of hybrid direct carbon fuel cells with anthracite coal and bituminous coal

Jiang

Arenillas

et al. 2016

International Journal of Hydrogen Energy

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Direct carbon fuel cells offer the opportunity of generating energy from coal at high efficiency as an alternative to the procedure of conventional power plants. In this study, raw anthracite coal and raw bituminous coal were investigated in a hybrid direct carbon fuel cell (HDCFC), which was a combination of a solid oxide fuel cell and a molten carbonate fuel cell. Mechanical mixing was confirmed to be an efficient method of mixing coal with carbonate. The coal samples had different properties, for example, carbon content, hydrogen content, volatile matter and impurities. The results showed that the maximum power density obtained by the cell with anthracite coal was similar to that obtained by the cell with bituminous coal. It was found that the total power output from coal in HDCFCs mostly depended on the carbon content, while volatile matter, hydrogen content, moisture, etc. had an effect on the short-term durability. HDCFCs were kept operating for more than 120 hours with 1.6 g coal. This study demonstrates that energy can be generated efficiently by employing anthracite and bituminous coal in hybrid direct carbon fuel cells.

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Section: Electrochemical Performance Of the Cell With Different Typesmentioning

confidence: 54%

Section: Introductionmentioning

confidence: 99%

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Comparative study of durability of hybrid direct carbon fuel cells with anthracite coal and bituminous coal

Jiang

Arenillas

et al. 2016

International Journal of Hydrogen Energy

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“…Samples of milled anthracite and bituminous coals were demineralized (AIII-MD and B-I-MD) as described in Ref. [3]. Milled and de-mineralized anthracite samples were heat treated in N 2 (800 C/2 h), producing a carbonized (AIII-C) sample.…”

Section: Methodsmentioning

confidence: 99%

“…Hybridization of these two DCFC concepts aims to overcome the shortcomings while maintaining the advantages of each. A hybrid DCFC (HDCFC) consists of an SOFC with a molten mixture of carbon and alkali carbonate included in the anode chamber, such that infrastructural advantages (reduced corrosion issues at, and air supply only to, the cathode) and fuel/electrolyte contact enhancement are simultaneously achieved [2,3].…”

Section: Introductionmentioning

confidence: 99%

Hybrid direct carbon fuel cell anode processes investigated using a 3-electrode half-cell setup

Deleebeeck

Arenillas

Menéndez

2015

International Journal of Hydrogen Energy

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Cyclic voltammetry (CV) Bituminous coal Carbon monoxide Carbon dioxide a b s t r a c t A 3-electrode half-cell setup consisting of a yttria-stabilized zirconia (YSZ) electrolyte support was employed to investigate the chemical and electrochemical processes occurring in the vicinity of a model hybrid direct carbon fuel cell (HDCFC) anode (Ni-YSZ) in contact with a molten carbon-alkali carbonate slurry. Electrochemical testing, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), with and without the Ni-YSZ layer highlighted the promotional effect of the Ni-YSZ anode layer, and revealed the contributions of Ni/NiO, and potentially K/K 2 O, redox couple(s). Treated anthracite and bituminous coals, as well as carbon black, were tested, revealing similar open circuit potential and activation energies in mixed 96e4 vol% N 2 eCO 2 and 50e50 vol% COeCO 2 environments between 700 and 800 C. Bituminous coal showed the highest activity, likely associated to a high O/C ratio and hydrogen content. Based on acquired data, a reaction scheme was proposed for processes at the working electrode, including the role of bubble formation in the vicinity of the electrochemically active solid/molten medium interface.

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Yttria-doped ceria anode for carbon-fueled solid oxide fuel cell

Kulkarni

Giddey

Badwal

2014

J Solid State Electrochem

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Effect of carbon type on the performance of a direct or hybrid carbon solid oxide fuel cell

Abstract: The impact of carbon type on DCFC performance is explored; the optimum performance is obtained with biomass-derived pine charcoal.

Cited by 48 publications

References 28 publications

Comparative study of durability of hybrid direct carbon fuel cells with anthracite coal and bituminous coal

Comparative study of durability of hybrid direct carbon fuel cells with anthracite coal and bituminous coal

Hybrid direct carbon fuel cell anode processes investigated using a 3-electrode half-cell setup

Yttria-doped ceria anode for carbon-fueled solid oxide fuel cell

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