Premium
Control of Spatial Organization of Electrospun Fibers in a Carbon Felt for Enhanced Bioelectrode Performance
Author(s) -
Both Engel Adriana,
Cherifi Aziz,
Bechelany Mikhael,
Tingry Sophie,
Cornu David
Publication year - 2015
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201402324
Subject(s) - materials science , electrospinning , cyclic voltammetry , electrochemistry , electrode , electrical resistivity and conductivity , fiber , nanotechnology , carbon fibers , chemical engineering , composite material , polymer , chemistry , electrical engineering , composite number , engineering
Electrospun carbon fiber electrodes showing high performance for bio‐electrochemical applications were developed. Easy to handle and manipulate aligned and unaligned carbon fibers with a mean diameter of (330±50) nm were synthesized through an electrospinning technique. Electrical resistivity measurements, which are a challenge that has not been much explored in the case of fibrous materials, were realized through two different techniques, and a study of contact resistances between electrical clips and the carbon fibers was performed. To target the creation of a bioelectrode, carbon fibers were characterized electrochemically by cyclic voltammetry. After being modified with the enzyme laccase, its response to oxygen electroreduction was studied. Aligned fibers present a cathodic current that is 30 % higher than that of randomly distributed fibers. Overall, the results show that aligned fibers are more appropriate for bio‐electrochemical applications when exploiting anisotropic spatial organization.