The effect of nitric acid, ethylenediamine, and diethanolamine modified polyaniline nanoparticles anode electrode in a microbial fuel cell

Ghasemi, Mostafa; Daud, Wan Ramli Wan; Mokhtarian, Nader; Mayahi, Alireza; Ismail, Manal; Anisi, Fatemeh; Sedighi, Mehdi; Alam, Javed

doi:10.1016/j.ijhydene.2012.12.016

Cited by 50 publications

(29 citation statements)

References 39 publications

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“…For instance, Li et al [7] reported that PANi could be suitable for both abiotic cathode and biocathode in BES, with greatly enhanced power densities. In addition, Ghasemi et al [8] reported that microorganism adhesion on the electrode was significantly increased after the modification of the electrode by PANi. However, the conductivity and electrochemical activity of PANi are strongly suppressed by high pH value, especially when pH above 6 [9].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of polyaniline/graphene oxide composite for graphite felt electrode modification and its performance in the bioelectrochemical system

Jiang

Lou

Chen

et al. 2015

Journal of Electroanalytical Chemistry

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Section: Introductionmentioning

confidence: 99%

Fabrication of polyaniline/graphene oxide composite for graphite felt electrode modification and its performance in the bioelectrochemical system

Jiang

Lou

Chen

et al. 2015

Journal of Electroanalytical Chemistry

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“…As we all know, PANI has been widely used in MFC anode and cathode and demonstrated that it can effectively improve MFCs' performance. The results of Ghasemi et.al showed that polyaniline modifications increased the microorganism's adhesion, which play a significant role as biocatalysts and so improved the performance of MFCs [9]. Lai et al [10] modified carbon cloth by electrochemical polymerization of aniline as MFC anode.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline Modified Stainless Steel Fiber Felt for High-Performance Microbial Fuel Cell Anodes

Hou¹,

Liu²,

Li³

2015

JOCET

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Abstract-The three-dimensional (3D) macroporous anodes are constructed by coating polyaniline(PANI) on stainless steel fiber felts (SSFFs) that have an open, solid and macroporous structure. In the present study, nano-polyaniline is synthesized in two different methods by using chemical and electrochemical oxidative polymerization. These modified electrodes provide large surface area for reaction, interfacial transport and biocompatible interface available for bacterial colonization and substrate transport. The polarization curves together with electrochemical impedance spectroscopy (EIS) measurements demonstrate that polyaniline modified anodes could greatly improve MFCs' power output and decrease MFCs' internal resistance. Our experimental results also prove that embedding polyaniline into 3D macroporous metallic scaffold is a promising method for MFC anode fabrication.Index Terms-Microbial fuel cell, anode, polyaniline, stainless steel fiber felt, polymerization.

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“…Carbon materials are commonly used as electrodes due to their relatively low cost, chemical inertness, hardness and good electrical conductivity compared to expensive catalytic metals. Modifications, coating with catalytic metals 1,7 and carbon activation [2][3][4][5][6]8 have been used to increase electrical conductivity, surface area and overall performance of carbon electrodes, though preparation of such electrodes require costly materials and/or equipment, making these techniques difficult to scale up from a manufacturer standpoint.…”

mentioning

confidence: 99%

“…3,6,[8][9][10][11][12] Graphene is a single atomic layer of carbon atoms arranged in a hexagonal lattice. Another way to look at this 2D carbon is as the planer version of 1D carbon nanotubes (CNT), and a single layer of bulk 3D graphite.…”

mentioning

confidence: 99%

Mechanism of Electrochemical Hydrogenation of Epitaxial Graphene

Daniels

Shetu

Weidner

et al. 2015

J. Electrochem. Soc.

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Mechanism of electrochemical hydrogen adsorption on epitaxial graphene (EG) was observed to be dependent on defects in EG as observed by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and Raman spectroscopy. To determine the material dependence on electrochemical hydrogenation, a set of different EG samples (Si-face EG [∼2 ML], C-face EG [∼10 ML], M-plane EG [∼25 ML], defective Si-face EG [>50 ML]) and a graphite disk [>500 ML] were characterized using a home built electrochemical cell developed in previous work, dilute perchloric acid (HClO 4) solution, silver/silver chloride (Ag/AgCl) reference electrode in saturated KCl (0.198 V vs. NHE) and potentiostat. The Nyquist plots obtained from EIS of epitaxial graphene with low defect density showed only one semicircle covering the entire frequency range attributed to adsorption of hydrogen at the relatively chemically inert basal plane surface and further supported by lack of hydrogen peaks in the CV. Samples with high defect density showed an additional semicircle at the intermediate to high frequency ranges linked to adsorption and charge transfer of hydrogen to graphene. The increased presence of point defects in epitaxial graphene augments the surface area of the material resulting in increased diffusion of hydrogen ions though the graphene lattice allowing for hydrogen to adsorb to additional sites within the lattice. Carbon materials are commonly used as electrodes due to their relatively low cost, chemical inertness, hardness and good electrical conductivity compared to expensive catalytic metals. Modifications, coating with catalytic metals 1,7 and carbon activation [2][3][4][5][6]8 have been used to increase electrical conductivity, surface area and overall performance of carbon electrodes, though preparation of such electrodes require costly materials and/or equipment, making these techniques difficult to scale up from a manufacturer standpoint.8 Carbon electrodes like carbon nanotubes (CNT) and graphene are ideal in fuel cell and double layer capacitor electrodes having both high electrical conductivity and surface area. 3,6,[8][9][10][11][12] Graphene is a single atomic layer of carbon atoms arranged in a hexagonal lattice. Another way to look at this 2D carbon is as the planer version of 1D carbon nanotubes (CNT), and a single layer of bulk 3D graphite. 13 Because of this 2-dimensionality, graphene also has an exceptionally high surface area of 2630 m 2 g −1 , due to every atom in the layer being exposed to the environment. This is compared to bulk graphite which is much lower at <10 m 2 g −1 and CNT at half the surface area of graphene at 1315 m 2 g −1 .13 Graphene also has high electrical and thermal conductivity, high room temperature mobility (>15,000 cm 2 /V s) 14 and high tensile strength due to the C-C bond, [14][15][16][17] characteristics that make it an appealing material for electrodes [18][19][20][21][22][23] and ultra-sensitive sensors. 24,25An electrochemical cell using a dilute acidic solution as electrolyte was u...

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The effect of nitric acid, ethylenediamine, and diethanolamine modified polyaniline nanoparticles anode electrode in a microbial fuel cell

Cited by 50 publications

References 39 publications

Fabrication of polyaniline/graphene oxide composite for graphite felt electrode modification and its performance in the bioelectrochemical system

Fabrication of polyaniline/graphene oxide composite for graphite felt electrode modification and its performance in the bioelectrochemical system

Polyaniline Modified Stainless Steel Fiber Felt for High-Performance Microbial Fuel Cell Anodes

Mechanism of Electrochemical Hydrogenation of Epitaxial Graphene

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