Title of article :
Immobilization of FeFe hydrogenase mimics onto carbon and gold electrodes by controlled aryldiazonium salt reduction: an electrochemical, XPS and ATR-IR study
Author/Authors :
Le Goff، نويسنده , , Alan and Artero، نويسنده , , Vincent and Metayé، نويسنده , , Romain and Moggia، نويسنده , , Fabrice and Jousselme، نويسنده , , Bruno and Razavet، نويسنده , , Mathieu and Tran، نويسنده , , Phong D. and Palacin، نويسنده , , Serge and Fontecave، نويسنده , , Marc، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
7
From page :
10790
To page :
10796
Abstract :
A dithiolate-bridged hexacarbonyldiiron complex was synthesized from the reaction of the N-hydroxysuccinimide (NHS) ester of lipoic acid with Fe3(CO)12 in toluene. This mimic of the active site of FeFe hydrogenases could be covalently attached, using an NHS ester route, to carbon or gold electrode first decorated with amino functions. Once grafted this complex catalyzes hydrogen electro-evolution under strongly acidic conditions but is rapidly inactivated. We could evidence that the activity loss was due to the elimination of the carbonyl ligands rather than a leaching of the catalyst as a consequence of hydrolysis of the amide linkages.
Keywords :
Surface chemistry , Hydrogen evolution reaction , Modified electrodes , Hydrogenase models
Journal title :
International Journal of Hydrogen Energy
Serial Year :
2010
Journal title :
International Journal of Hydrogen Energy
Record number :
1663037
Link To Document :
بازگشت