The effect of counter ions and substrate material on the growth and morphology of poly(3,​4-​ethylenedioxythiophene) films: Towards the application of enzyme electrode construction in biofuel cells

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Xiaoju Wang, Pia Sjöberg-Eerola, Jan-Erik Eriksson, Johan Bobacka, Mikael Bergelin
Publisher: Elsevier B.V.
Publication year: 2010
Journal: Synthetic Metals
Volume number: 160
Issue number: 13-14
Start page: 1373
End page: 1381
eISSN: 0379-6779


Poly(3,​4-​ethylenedioxythiophene) (PEDOT) films, with Cl-​, NO3-​, poly(styrene sulfonate) (PSS-​) or C nanotubes (CNTs) as counterions, were electrochem. deposited onto In Sn oxide (ITO) glass from aq. electrolyte. PEDOT film, with tetrafluoroborate anions (BF4-​) as counterions, was also electrochem. deposited on ITO glass from a propylene carbonate-​based electrolyte. The effect of counterions on the morphol. of PEDOT films was demonstrated by the characterizations with scanning electron microscope (SEM)​. Different C-​based materials were explored as the substrate materials for PEDOT film generation in electropolymn., including C ink paper, C paper, C felt, and reticulated vitreous C foam (RVC foam)​. The micro-​structure and the surface morphol. of the resulted PEDOT films were imaged with SEM. The elemental anal. of the films was performed with energy dispersive x-​ray anal. (EDAX)​. The topog. of the PEDOT films was characterized using confocal white light microscopy (COM)​. A biofuel cell cathode was prepd. by immobilization of Trametes Hirsuta laccase (Th-​laccase) in PEDOT and the performance of the electrode towards O redn. was examd. by chronoamperomentric measurements

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