Bioelectrochemical oxidation of water.
J Am Chem Soc
; 136(16): 5892-5, 2014 Apr 23.
Article
de En
| MEDLINE
| ID: mdl-24725275
ABSTRACT
The electrolysis of water provides a link between electrical energy and hydrogen, a high energy density fuel and a versatile energy carrier, but the process is very expensive. Indeed, the main challenge is to reduce energy consumption for large-scale applications using efficient renewable catalysts that can be produced at low cost. Here we present for the first time that laccase can catalyze electrooxidation of H2O to molecular oxygen. Native and laboratory-evolved laccases immobilized onto electrodes serve as bioelectrocatalytic systems with low overpotential and a high O2 evolution ratio against H2O2 production during H2O electrolysis. Our results open new research ground on H2O splitting, as they overcome serious practical limitations associated with artificial electrocatalysts currently used for O2 evolution.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Eau
/
Laccase
Langue:
En
Journal:
J Am Chem Soc
Année:
2014
Type de document:
Article
Pays d'affiliation:
Espagne