Environmental Engineering Reference
In-Depth Information
Chapter 4
Investigations of the Efficient Electrocatalytic
Interconversions of Carbon Dioxide
and Carbon Monoxide by Nickel-Containing
Carbon Monoxide Dehydrogenases
Vincent C.-C. Wang, Stephen W. Ragsdale, and Fraser A. Armstrong
Contents
ABSTRACT ....................................................................................
72
1 DIRECT CARBON DIOXIDE/CARBON MONOXIDE INTERCONVERSIONS
IN BIOLOGY . . . . . . . . . . . . . . . . . . . . . .........................................................
72
2 NICKEL-CONTAINING CARBON MONOXIDE DEHYDROGENASES . . ..........
75
3 PROTEIN FILM ELECTROCHEMISTRY ..............................................
80
4 CARBON MONOXIDE DEHYDROGENASES AS ELECTROCATALYSTS ........
82
4.1 The Electrocatalytic Voltammograms of Class IV Enzymes ......................
82
4.2 The Electrocatalytic Voltammograms of Class III Enzymes .......................
84
5 POTENTIAL-DEPENDENT REACTIONS WITH INHIBITORS . . . ...................
85
5.1 How Class IV Carbon Monoxide Dehydrogenases Respond to Cyanide . . . . ......
86
5.2 How Class IV Carbon Monoxide Dehydrogenases Respond to Cyanate ..........
87
5.3 How Class IV Carbon Monoxide Dehydrogenases Respond to Sulfide
and Thiocyanate . . ....................................................................
89
6 DEMONSTRATIONS OF TECHNOLOGICAL SIGNIFICANCE . . . . . . . . . . . . . . . . . . . . .
91
7 CONCLUSIONS ...........................................................................
95
ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ACKNOWLEDGMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
96
REFERENCES .................................................................................
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