화학공학소재연구정보센터
Journal of Power Sources, Vol.270, 312-317, 2014
Utilization of corn cob biochar in a direct carbon fuel cell
Biochar obtained from the pyrolysis of corn cob is used as the fuel of a direct carbon fuel cell (DCFC) employing a composite electrolyte composed of a samarium doped ceria (SDC) and a eutectic carbonate phase. An anode layer made of NiO and SDC is utilized to suppress the cathode corrosion by the molten carbonate and improves the whole cell stability. The anode off-gas of the fuel cell is analyzed with a gas chromatograph. The effect of working temperature on the cell resistance and power output is examined. The maximum power output achieves 185 mW cm(-2) at a current density of 340 mA cm(-2) and 750 degrees C. An anode reaction scheme including the Boudouard reaction is proposed. (C) 2014 Elsevier B.V. All rights reserved.