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A membrane-, mediator-, cofactor-less glucose/oxygen biofuel cell

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Vasile Coman, Cristina Vaz-Dominguez, Roland Ludwig, Wolfgang Harreither, Dietmar Haltrich, Antonio L. De Lacey, Tautgirdas Ruzgas, Lo Gorton, Sergey Shleev

Editorial: Physical Chemistry Chemical Physics, 10, p.6093-6096, 2008.


We report the fabrication and characterisation of a non-compartmentalised, mediator and cofactor free glucose-oxygen biofuel cell based on adsorbed enzymes exhibiting direct bioelectrocatalysis, viz. cellobiose dehydrogenase from Dichomera saubinetii and laccase from Trametes hirsuta as the anodic and cathodic bioelements, respectively, with the following characteristics: an open-circuit voltage of 0.73 V; a maximum power density of 5 mu W cm(-2) at 0.5 V of the cell voltage and an estimated half-life of >38 h in air-saturated 0.1 M citrate-phosphate buffer, pH 4.5 containing 5 mM glucose.

Cuvinte cheie: Direct Electron Transfer, Biofuel Cell