Carbon air fuel cells

Yuta Nabae, John T S Irvine*, Sneh L. Jain, Kevin D. Pointon, John B. Lakeman

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper discusses a new concept for Direct Carbon Fuel Cells (DCFCs) developed in the University of St Andrews. DCFCs use solid carbon as a fuel directly, which has a high energy density compared with other energy carriers. The St Andrews/DSTL DCFC utilises a combination of the technologies of Solid Oxide Fuel Cell and Molten Carbonate Fuel Cell (MCFC) technologies whereas most earlier DCFCs were based solely on MCFC technology. A solid oxide electrolyte is employed to separate the cathode and anode compartments while a molten carbonate electrolyte is also present in the anode compartment to enhance the anode reactions. This new concept avoids the need for CO2 circulation and the protection of the cathode from molten carbonate. Fuel cell testing has been carried out using a Super-S carbon fuel, a yttria-stablilized zirconia (YSZ) electrolyte, NiO/YSZ cermet anode, (La0.8Sr0.2) 0.95MnO3 cathode, and a eutectic molten carbonate mixture (lithium carbonate and potassium carbonate). Promising fuel cell performances have been shown in the temperature range of 550-900°C. The OCV and maximum output at 900°C were 1.24 V and 6.9 mW cm-2.

Original languageEnglish
Title of host publication25th International Power Sources Symposium and Exhibition 2007, IPSS 2007
Number of pages7
Publication statusPublished - 1 Dec 2007
Event25th International Power Sources Symposium and Exhibition 2007, IPSS 2007 - Bath, United Kingdom
Duration: 23 Apr 200725 Apr 2007


Conference25th International Power Sources Symposium and Exhibition 2007, IPSS 2007
Country/TerritoryUnited Kingdom


  • Biomass
  • Carbon
  • Direct carbon fuel cell
  • Molten carbonate
  • Solid oxide fuel cell


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