title: High power enzymatic biofuel cell based on naphthoquinone-mediated oxidation of glucose by glucose oxidase in a carbon nanotube 3D matrix.
abstract: We report the design of a novel glucose/O2 biofuel cell (GBFC) integrating carbon nanotube-based 3D bioelectrodes and using naphthoquinone-mediated oxidation of glucose by glucose oxidase and direct oxygen reduction by laccase. The GBFCs exhibit high open circuit voltages of 0.76 V, high current densities of 4.47 mA cm(-2), and maximum power output of 1.54 mW cm(-2), 1.92 mW mL(-1) and 2.67 mW g(-1). The GBFC is able to constantly deliver 0.56 mW h cm(-2) under discharge at 0.5 V, showing among the best in vitro performances for a GBFC. Using a charge pump, the GBFC finally powered a Light Emitting Diode (LED), demonstrating its ability to amplify micro watts to power mW-demanding electronic devices.
authors: UJF-Grenoble 1, CNRS, Département de Chimie Moléculaire, UMR-5250, ICMG FR-2607, Grenoble, France.
authors: Bertrand
authors: B
authors: Reuillard
authors: Alan
authors: A
authors: Le Goff
authors: Charles
authors: C
authors: Agnès
authors: Michael
authors: M
authors: Holzinger
authors: Abdelkader
authors: A
authors: Zebda
authors: Chantal
authors: C
authors: Gondran
authors: Kamal
authors: K
authors: Elouarzaki
authors: Serge
authors: S
authors: Cosnier
mesh_terms: D001674:Bioelectric Energy Sources; D004566:Electrodes; D005947:Glucose / Q000737:chemistry / Q000378:metabolism*; D005949:Glucose Oxidase / Q000737:chemistry / Q000378:metabolism*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009285:Naphthoquinones / Q000737:chemistry / Q000378:metabolism*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry / Q000378:metabolism*
chemical_list: D037742:Nanotubes, Carbon; D009285:Naphthoquinones; D005949:Glucose Oxidase; D005947:Glucose; D010100:Oxygen