Highly selective electrocatalytic conversion of CO2 to CO at -0.57 V (NHE) by carbon monoxide dehydrogenase from Moorella thermoacetica.
We found that CODH is a fascinating enzyme for the electrochemical conversion of CO2 to CO. It could reduce CO2 to CO at -0.57 V vs NHE with approximately 100% current efficiency in 0.1 M phosphate buffer (pH 6.3). Nature's unique structure of C-cluster in CODH would be responsible for the low overpotential and the selective and fast conversion of CO2. The turnover number per C-cluster is 700 h-1, and the pH optimum is 6.3.
Shin
Woonsup
W
Department of Chemistry, Sogang University, Seoul 121-742, Korea.
Lee
Sang Hee
SH
Shin
Jun Won
JW
Lee
Sang Phil
SP
Kim
Yousung
Y
D000445:Aldehyde Oxidoreductases / Q000737:chemistry* / Q000378:metabolism; D002245:Carbon Dioxide / Q000737:chemistry* / Q000378:metabolism; D002248:Carbon Monoxide / Q000737:chemistry* / Q000378:metabolism; D002384:Catalysis; D004563:Electrochemistry; D016936:Gram-Positive Endospore-Forming Bacteria / Q000201:enzymology*; D009097:Multienzyme Complexes / Q000737:chemistry* / Q000378:metabolism; D010084:Oxidation-Reduction
D009097:Multienzyme Complexes; D002245:Carbon Dioxide; D002248:Carbon Monoxide; D000445:Aldehyde Oxidoreductases; C019823:carbon monoxide dehydrogenase