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J Am Chem Soc. 2003 Dec 3;125(48):14688-9.

Highly selective electrocatalytic conversion of CO2 to CO at -0.57 V (NHE) by carbon monoxide dehydrogenase from Moorella thermoacetica.

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1
Department of Chemistry, Sogang University, Seoul 121-742, Korea.

Abstract

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.

PMID:
14640627
DOI:
10.1021/ja037370i
[Indexed for MEDLINE]
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