TY - JOUR
T1 - Conversion of CO2 to CO by electrolysis of molten lithium carbonate
AU - Kaplan, Valery
AU - Wachtel, Ellen
AU - Gartsman, Konstantin
AU - Feldman, Yishay
AU - Lubomirsky, Igor
PY - 2010
Y1 - 2010
N2 - The conversion of CO2 to CO by electrolysis of molten Li 2 CO3 was investigated. Using a cell comprising a Ti cathode, a graphite anode and a source of CO2 allows the continuous electrolysis of the melt at 900°C with current densities at the electrodes higher than 100 mA/ cm2. The faradaic efficiency of the process is close to 100%, and the thermodynamic efficiency at 100 mA/ cm2 is >85%. The proposed method has several advantages: (i) No precious metal is required, (ii) no hazardous or toxic by-products are produced, and (iii) the method may operate continuously, producing pure CO rather than a mixture of CO and CO2. Therefore, the process described here has a potential application for converting electrical energy into fuel.
AB - The conversion of CO2 to CO by electrolysis of molten Li 2 CO3 was investigated. Using a cell comprising a Ti cathode, a graphite anode and a source of CO2 allows the continuous electrolysis of the melt at 900°C with current densities at the electrodes higher than 100 mA/ cm2. The faradaic efficiency of the process is close to 100%, and the thermodynamic efficiency at 100 mA/ cm2 is >85%. The proposed method has several advantages: (i) No precious metal is required, (ii) no hazardous or toxic by-products are produced, and (iii) the method may operate continuously, producing pure CO rather than a mixture of CO and CO2. Therefore, the process described here has a potential application for converting electrical energy into fuel.
UR - http://www.scopus.com/inward/record.url?scp=77949686198&partnerID=8YFLogxK
U2 - 10.1149/1.3308596
DO - 10.1149/1.3308596
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AN - SCOPUS:77949686198
SN - 0013-4651
VL - 157
SP - B552-B556
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 4
ER -
