BOKU - Universität für Bodenkultur Wien - Forschungsinformationssystem

Logo BOKU-Forschungsportal

Gewählte Publikation:

Gonzalez-Arribas, E; Bobrowski, T; Di Bari, C; Sliozberg, K; Ludwig, R; Toscano, MD; De Lacey, AL; Pita, M; Schuhmann, W; Shleev, S.
(2017): Transparent, mediator- and membrane-free enzymatic fuel cell based on nanostructured chemically modified indium tin oxide electrodes
BIOSENS BIOELECTRON. 2017; 97: 46-52. FullText FullText_BOKU

Abstract:
We detail a mediator- and membrane-free enzymatic glucose/oxygen biofuel cell based on transparent and nanostructured conducting supports. Chemically modified indium tin oxide nanoparticle modified electrodes were used to substantially increase the active surface area without significantly compromising transparency. Two different procedures for surface nanostructuring were employed, viz. spray-coating and drop-coating. The spray-coated biodevice showed superior characteristics as compared to the drop-coated enzymatic fuel cell, as a result of the higher nanostructured surface area as confirmed by electrochemical characterisation, as well as scanning electron and atomic force microscopy. Subsequent chemical modification with silanes, followed by the immobilisation of either cellobiose dehydrogenase from Corynascus thermophiles or bilirubin oxidase from Myrothecium verrucaria, were performed to obtain the bioanodes and biocathodes, respectively. The optimised biodevice exhibited an OCV of 0.67 V and power output of up to 1.4 mu W/cm(2) at an operating voltage of 0.35 V. This is considered a significant step forward in the field of glucose/oxygen membrane- and mediator-free, transparent enzymatic fuel cells.
Autor/innen der BOKU Wien:
Ludwig Roland
BOKU Gendermonitor:


Find related publications in this database (Keywords)
Indium tin oxide
Nanoparticle
Membrane-free
Mediator-free
Transparent enzymatic fuel cell


© BOKU Wien Impressum