TY - JOUR
T1 - Production of Synthetic Fuels by Co-Electrolysis of Steam and Carbon Dioxide
AU - Ebbesen, Sune
AU - Graves, Christopher R.
AU - Mogensen, Mogens Bjerg
PY - 2009
Y1 - 2009
N2 - Co-electrolysis of H2O and CO2 was studied in solid oxide cells (SOCs) supported by nickel-/yittria-stabilized zirconia (Ni/YSZ) electrode. Polarization characterization indicates that electrochemical reduction of both CO2 and H2O occurs during co-electrolysis. In parallel with the electrochemical reactions, the equilibrium of the water-gas shift reaction is reached, and moreover, CO is produced via the water-gas shift reaction. The degradation observed when performing co-electrolysis in these SOCs occurs mainly at the Ni/YSZ cathode and may be a consequence of impurities in the gas stream, adsorbing on active sites in the SOC. The low degradation is most likely acceptable for long-time operation.
AB - Co-electrolysis of H2O and CO2 was studied in solid oxide cells (SOCs) supported by nickel-/yittria-stabilized zirconia (Ni/YSZ) electrode. Polarization characterization indicates that electrochemical reduction of both CO2 and H2O occurs during co-electrolysis. In parallel with the electrochemical reactions, the equilibrium of the water-gas shift reaction is reached, and moreover, CO is produced via the water-gas shift reaction. The degradation observed when performing co-electrolysis in these SOCs occurs mainly at the Ni/YSZ cathode and may be a consequence of impurities in the gas stream, adsorbing on active sites in the SOC. The low degradation is most likely acceptable for long-time operation.
KW - Fuel Cells and hydrogen
KW - Electrolysis
KW - Elektrolyse
KW - Brændselsceller og brint
U2 - 10.1080/15435070903372577
DO - 10.1080/15435070903372577
M3 - Journal article
SN - 1543-5075
VL - 6
SP - 646
EP - 660
JO - International Journal of Green Energy
JF - International Journal of Green Energy
IS - 6
ER -