Preparation and characterization of biocompatible carbon electrodes

Jayapriya, J.; Gopal, Judy; Ramamurthy, V.; Mudali, U. Kamachi; Raj, Baldev

doi:10.1016/j.compositesb.2011.10.019

Cited by 24 publications

(15 citation statements)

References 17 publications

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“…The high internal resistance of the graphite block suggested that introducing other ions might facilitate electron mobility. Metal salt‐doped graphite epoxy composite electrodes (MS‐GECE) prepared and characterized as described earlier . When metal salts doped graphite electrodes were used, showed altered OCV in most cases (data not shown).…”

Section: Resultsmentioning

confidence: 90%

Decolorization and degradation of monoazo and diazo dyes in Pseudomonas catalyzed microbial fuel cell

Jayapriya

Parthasarathy

Viraraghavan

2016

Env Prog and Sustain Energy

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A laboratory‐scale H‐shaped Pseudomonas catalyzed microbial fuel cell (MFC) was investigated for its performance in decolourizing synthetic wastewater containing azo dyes. The azo‐dyes investigated in this study were methyl orange (MO), congo red, reactive blue 172 (RB), reactive yellow 145, and reactive red 2. Among the azo dyes in anode chamber MO resulted in the highest power density (4100 μW m−2) with graphite electrodes and a decolourization efficiency of 94%. The azo bonds were cleaved in all the dyes tested, and their metabolites in the anolytes were characterized by UV‐visible spectral and HPLC analyses. To reduce the internal resistance of MFC and maximize the power density, different metal salt doped graphite epoxy composites) were tested. In the case of azo dyes MO and RB, the power output increased substantially (almost 1.2 fold) when using Mn2+—GECE compared to graphite block. © 2016 American Institute of Chemical Engineers Environ Prog, 35: 1623–1628, 2016

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Section: Resultsmentioning

confidence: 90%

Decolorization and degradation of monoazo and diazo dyes in Pseudomonas catalyzed microbial fuel cell

Jayapriya

Parthasarathy

Viraraghavan

2016

Env Prog and Sustain Energy

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“…This, however did not reflect in the power produced when Fe 3+ ‐GECE was used as the anode. Although Fe 3+ GECE was more biocompatible, it was not as good for electron transfer, perhaps due to its high positive half redox potential (0.11 V) . Similarly, the measured half redox potential of the Cu 2+ (0.08 V) and Co 2 ‐GECE (0.10 V) was more positive compared to biological electron carriers (e.g.…”

Section: Resultsmentioning

confidence: 95%

“…Ltd., Chennai, TN, India (carbon fibre to epoxy resin: 60:40). Metal salt doped graphite epoxy composite electrodes (MS‐GECE) and chemically modified electrodes were prepared as described earlier . The analytical grade salts used were ferric sulphate (Fe 2 (SO 4 ) 3 · 5H 2 O), nickel chloride (NiCl 2 · 6H 2 O), magnesium sulphate (MgSO 4 · 7H 2 O), manganese sulphate (MnSO 4 · H 2 O), zinc sulphate (ZnSO 4 · 7H 2 O), cobalt chloride (CoCl 2 · 6H 2 O) and copper sulphate (CuSO 4 · 5H 2 O) obtained from S.D.…”

Section: Methodsmentioning

confidence: 99%

“…Thus, carbon materials that differ in their physico‐chemical properties, electrochemical behaviour and structural characteristics are desirable to develop powerful sensing devices; these devices can be developed by the deliberate modification of the surface or bulk matrix material with selected redox species (monomeric or polymeric) that can alter the electrochemical behaviour suited to MFCs. We have previously described modification and characterisation of epoxy graphite composites for application in MFCs …”

Section: Introductionmentioning

confidence: 99%

“…We have previously described modification and characterisation of epoxy graphite composites for application in MFCs. [15] To elucidate the effectiveness of modified carbon electrodes, Pseudomonas aeruginosa was used as the model organism. Pseudomonas is known to secrete several electrochemically active phenazine derivatives, such as pyocyanin, 5-methylphenazine-1-carboxylic acid betaine (5-MCA) and phenazine-1-carboxamide (PCN).…”

Section: Introductionmentioning

confidence: 99%

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The role of electrode material in capturing power generated in Pseudomonas catalysed fuel cells

Jayapriya

Ramamurthy

2013

Can J Chem Eng

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High efficiency electrodes (e.g. metal coated, carbon‐polymer composites and noble‐metal catalyst, etc.) used in conventional fuel cells are commercially available; however they are not being used in microbial fuel cells (MFCs). These electrodes are not biocompatible and more susceptible to catalyst poisoning when industrial effluents/aquatic sediments are used as a fuel. There is a need for unique electrode materials for MFCs that should be highly conductive material with enhanced active surface area, cheap, easy to process, biocompatible and scalable. In this study, the performance of mediator‐less microbial fuel cells (MFC) using Pseudomonas aeruginosa as a biocatalyst using different electrodes such as graphite blocks, carbon cloth, carbon fibre reinforced plate and graphite sheet was evaluated. Different metal salt doped graphite epoxy composites (MS‐GECE) and chemically modified carbon electrodes (CMCE) were also tested. Among the different combinations of the electrodes tested, Fe3+ graphite cathode produced significantly higher power density (1679.9 ± 98.04 µW/m2). These studies indicate the feasibility of the improvement in electrode design on the performance of MFC for wider applications.

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Electrochemical Performance Analyses of Biofilms

Jayapriya

Ramamurthy

2019

Bioelectrochemical Interface Engineering

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Preparation and characterization of biocompatible carbon electrodes

Cited by 24 publications

References 17 publications

Decolorization and degradation of monoazo and diazo dyes in Pseudomonas catalyzed microbial fuel cell

Decolorization and degradation of monoazo and diazo dyes in Pseudomonas catalyzed microbial fuel cell

The role of electrode material in capturing power generated in Pseudomonas catalysed fuel cells

Electrochemical Performance Analyses of Biofilms

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