Preparation and characterization of biocompatible carbon electrodes

被引：17
|
作者：
Jayapriya, J. [1 ]
Gopal, Judy [3 ]
Ramamurthy, V. [2 ]
Mudali, U. Kamachi [3 ]
Raj, Baldev [3 ]
机构：
[1] Anna Univ, AC Tech, Dept Chem Engn, Madras 600025, Tamil Nadu, India
[2] PSG Coll Technol, Dept Biotechnol, Coimbatore 641004, Tamil Nadu, India
[3] Indira Gandhi Ctr Atom Res, Mat Characterizat Grp, Corros Sci & Technol Div, Kalpakkam 603102, Tamil Nadu, India
来源：
COMPOSITES PART B-ENGINEERING | 2012年 / 43卷 / 03期
关键词：
Electrical properties; Electron microscopy; Surface treatments; Biofilm; FUEL-CELL; ELECTRICITY; NANOTUBES;
D O I：
10.1016/j.compositesb.2011.10.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electron transfer in microbial fuel cell and biosensors could be facilitated through high conductive materials with enhanced active surface area and appropriate redox potential suited to microbial metabolism. In the first strategy based on bulk doping, graphite/epoxy composite electrode (GECE) bulk was modified with six types of metal ion which were prepared through a wet impregnation procedure. In the second strategy, immobilization of redox dye on carbon cloth and graphite sheet was carried out using N,N'-dicyclohexylcar-bodiimide for surface modification. Crystallinity, morphology, surface chemistry and electrochemical properties of all modified electrodes were investigated. Influence of redox behavior of electrodes suited to microbial metabolism and conducive to biofilm formation have been examined. It was observed that the Fe3+ doped GECE surfaces exhibited significantly high biofilm formation of 1.10(+/- 0.18) x 10(7) CFU/cm(2) as compared to other dopants. The microbial growth on the carbon cloth electrode and carbon fiber reinforced plate were found to be less (2.6(+/- 0.97) x 10(4), 4.8(+/- 1.8) x 10(3) CFU/cm(2) respectively) compared to GECEs. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1329 / 1335
页数：7
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