Synthesis of the H-cluster framework of iron-only hydrogenase

Cédric Tard, Xiaoming Liu, Saad K. Ibrahim, Maurizio Bruschi, Luca De Gioia, Siân C. Davies, Xin Yang, Lai-Sheng Wang, Gary Sawers and Christopher J. Pickett ()
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Cédric Tard: Department of Biological Chemistry
Xiaoming Liu: Department of Biological Chemistry
Saad K. Ibrahim: Department of Biological Chemistry
Maurizio Bruschi: University of Milano-Bicocca
Luca De Gioia: University of Milano-Bicocca
Siân C. Davies: Department of Biological Chemistry
Xin Yang: Washington State University
Lai-Sheng Wang: Washington State University
Gary Sawers: John Innes Centre
Christopher J. Pickett: Department of Biological Chemistry

Nature, 2005, vol. 433, issue 7026, 610-613

Abstract: Fuel cells: iron is the new platinum In conventional hydrogen fuel cells the rapid interconversion of protons and electrons to hydrogen requires catalysis by expensive metals, usually platinum. In the living world enzymes catalyse this same reaction at extraordinary rates using abundant metals. Tard et al. now report the chemical synthesis of the iron–sulphur structure at the heart of the hydrogenase protein. The resulting iron–sulphur framework functions as an electrocatalyst for proton reduction, a potentially important step towards new materials to replace platinum in the anodes of fuel cells.

Date: 2005
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DOI: 10.1038/nature03298

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