TY - JOUR
T1 - Electrochemical reduction of carbon dioxide using porous La 0.8Sr0.2CuO3 electrode
AU - Kim, Jung Ryoel
AU - Lee, Hong Joo
AU - Park, Jung Hoon
PY - 2014/4
Y1 - 2014/4
N2 - La0.8Sr0.2CuO3 powder with the perovskite structure was prepared as electrode catalyst using citrate method. Porous electrode was made with as-prepared catalyst, carbon as supporter and polytetrafluoroethylene (PTFE) as hydrophobic binder. As results of potentiostatic electrolysis with potential of -1.5∼-2.5 V vs. Ag/AgCl in 0.1, 0.5 and 1.0 M KOH at 5 and 10 oC on the porous electrode, liquid products were methanol, ethanol, 2-propanol and 1, 2-butanol regardless reaction temperature, while gas products were methane, ethane and ethylene at 5 oC, and methane, ethane and propane at 10 oC respectively. Optimal potentials for CO2 reduction in the view of over all faradic efficiency were high values (-2.0 and -2.2 V) for gas products whereas low potential (-1.5 V) for liquid products regardless of concentration and temperature.
AB - La0.8Sr0.2CuO3 powder with the perovskite structure was prepared as electrode catalyst using citrate method. Porous electrode was made with as-prepared catalyst, carbon as supporter and polytetrafluoroethylene (PTFE) as hydrophobic binder. As results of potentiostatic electrolysis with potential of -1.5∼-2.5 V vs. Ag/AgCl in 0.1, 0.5 and 1.0 M KOH at 5 and 10 oC on the porous electrode, liquid products were methanol, ethanol, 2-propanol and 1, 2-butanol regardless reaction temperature, while gas products were methane, ethane and ethylene at 5 oC, and methane, ethane and propane at 10 oC respectively. Optimal potentials for CO2 reduction in the view of over all faradic efficiency were high values (-2.0 and -2.2 V) for gas products whereas low potential (-1.5 V) for liquid products regardless of concentration and temperature.
KW - Electrochemical reaction
KW - Perovskite
KW - Porous electrode
UR - http://www.scopus.com/inward/record.url?scp=84901428248&partnerID=8YFLogxK
U2 - 10.9713/kcer.2014.52.2.247
DO - 10.9713/kcer.2014.52.2.247
M3 - Article
AN - SCOPUS:84901428248
SN - 0304-128X
VL - 52
SP - 247
EP - 255
JO - Korean Chemical Engineering Research
JF - Korean Chemical Engineering Research
IS - 2
ER -