Please use this identifier to cite or link to this item: http://repositorio.ineel.mx/jspui/handle/123456789/233
9-Jun-2014
4. Versión publicada
Artículo
Titulo
Enzyme orientation for direct electron transfer in an enzymatic fuel cell with alcohol oxidase and laccase electrodes
Identificador del autor Tipo de identificacion Autor
0000-0003-1612-2996ORCIDRafael Vazquez_Duhalt
CURPULISES CANO CASTILLO
Descripcion/Resumen
A new full enzymatic fuel cell was built and characterized. Both enzymatic electrodes were molecularly oriented to enhance the direct electron transfer between the enzyme active site and the electrode surface. The anode consisted in immobilized alcohol oxidase on functionalized carbon nanotubes with 4-azidoaniline, which acts as active-site ligand to orientate the enzyme molecule. The cathode consisted of immobilized laccase on functionalized graphite electrode with 4-(2-aminoethyl) benzoic acid. The enzymatic fuel cell reaches 0.5 V at open circuit voltage with both, ethanol and methanol, while in short circuit the highest current intensity of 250 μA cm 2 was obtained with methanol. Concerning the power density, the methanol was the best substrate reaching 60 μW cm 2, while with ethanol 40 μW cm 2 was obtained.
Area de conocimiento Campo Disciplina Subdisciplina
INGENIERÍA Y TECNOLOGÍACIENCIAS TECNOLÓGICASOTRAS ESPECIALIDADES TECNOLÓGICASOTRAS
Audiencia
Público en general
Materias
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Acceso Abierto
Inglés