Influence of anode surface chemistry on microbial fuel cell operation

Carlo Santoro; Sofia Babanova; Kateryna Artyushkova; Jose A. Cornejo; Linnea Ista; Orianna Bretschger; Enrico Marsili; Plamen Atanassov; Andrew J. Schuler

doi:10.1016/j.bioelechem.2015.05.002

Influence of anode surface chemistry on microbial fuel cell operation

Carlo Santoro, Sofia Babanova, Kateryna Artyushkova, Jose A. Cornejo, Linnea Ista, Orianna Bretschger, Enrico Marsili, Plamen Atanassov, Andrew J. Schuler

Research output: Journal Publication › Article › peer-review

89 Citations (Scopus)

Abstract

Self-assembled monolayers (SAMs) modified gold anodes are used in single chamber microbial fuel cells for organic removal and electricity generation. Hydrophilic (N(CH₃)₃⁺, OH, COOH) and hydrophobic (CH₃) SAMs are examined for their effect on bacterial attachment, current and power output. The different substratum chemistry affects the community composition of the electrochemically active biofilm formed and thus the current and power output. Of the four SAM-modified anodes tested, N(CH₃)₃⁺ results in the shortest start up time (15days), highest current achieved (225μAcm^-2) and highest MFC power density (40μWcm^-2), followed by COOH (150μAcm^-2 and 37μWcm^-2) and OH (83μAcm^-2 and 27μWcm^-2) SAMs. Hydrophobic SAM decreases electrochemically active bacteria attachment and anode performance in comparison to hydrophilic SAMs (CH₃ modified anodes 7μAcm^-2 anodic current and 1.2μWcm^-2 MFC's power density). A consortium of Clostridia and δ-Proteobacteria is found on all the anode surfaces, suggesting a synergistic cooperation under anodic conditions.

Original language	English
Pages (from-to)	141-149
Number of pages	9
Journal	Bioelectrochemistry
Volume	106
DOIs	https://doi.org/10.1016/j.bioelechem.2015.05.002
Publication status	Published - 1 Dec 2015
Externally published	Yes

Keywords

Anode biofilm analysis
Bioelectrocatalysis
Microbial fuel cells
Self assembled monolayer
Surface modification

ASJC Scopus subject areas

Biophysics
Physical and Theoretical Chemistry
Electrochemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.bioelechem.2015.05.002

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title = "Influence of anode surface chemistry on microbial fuel cell operation",

abstract = "Self-assembled monolayers (SAMs) modified gold anodes are used in single chamber microbial fuel cells for organic removal and electricity generation. Hydrophilic (N(CH3)3+, OH, COOH) and hydrophobic (CH3) SAMs are examined for their effect on bacterial attachment, current and power output. The different substratum chemistry affects the community composition of the electrochemically active biofilm formed and thus the current and power output. Of the four SAM-modified anodes tested, N(CH3)3+ results in the shortest start up time (15days), highest current achieved (225μAcm-2) and highest MFC power density (40μWcm-2), followed by COOH (150μAcm-2 and 37μWcm-2) and OH (83μAcm-2 and 27μWcm-2) SAMs. Hydrophobic SAM decreases electrochemically active bacteria attachment and anode performance in comparison to hydrophilic SAMs (CH3 modified anodes 7μAcm-2 anodic current and 1.2μWcm-2 MFC's power density). A consortium of Clostridia and δ-Proteobacteria is found on all the anode surfaces, suggesting a synergistic cooperation under anodic conditions.",

keywords = "Anode biofilm analysis, Bioelectrocatalysis, Microbial fuel cells, Self assembled monolayer, Surface modification",

author = "Carlo Santoro and Sofia Babanova and Kateryna Artyushkova and Cornejo, {Jose A.} and Linnea Ista and Orianna Bretschger and Enrico Marsili and Plamen Atanassov and Schuler, {Andrew J.}",

note = "Funding Information: This project is funded by the Army Research Office Award W911NF-12-1-0208 . Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

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doi = "10.1016/j.bioelechem.2015.05.002",

language = "English",

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pages = "141--149",

journal = "Bioelectrochemistry",

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T1 - Influence of anode surface chemistry on microbial fuel cell operation

AU - Santoro, Carlo

AU - Babanova, Sofia

AU - Artyushkova, Kateryna

AU - Cornejo, Jose A.

AU - Ista, Linnea

AU - Bretschger, Orianna

AU - Marsili, Enrico

AU - Atanassov, Plamen

AU - Schuler, Andrew J.

PY - 2015/12/1

Y1 - 2015/12/1

N2 - Self-assembled monolayers (SAMs) modified gold anodes are used in single chamber microbial fuel cells for organic removal and electricity generation. Hydrophilic (N(CH3)3+, OH, COOH) and hydrophobic (CH3) SAMs are examined for their effect on bacterial attachment, current and power output. The different substratum chemistry affects the community composition of the electrochemically active biofilm formed and thus the current and power output. Of the four SAM-modified anodes tested, N(CH3)3+ results in the shortest start up time (15days), highest current achieved (225μAcm-2) and highest MFC power density (40μWcm-2), followed by COOH (150μAcm-2 and 37μWcm-2) and OH (83μAcm-2 and 27μWcm-2) SAMs. Hydrophobic SAM decreases electrochemically active bacteria attachment and anode performance in comparison to hydrophilic SAMs (CH3 modified anodes 7μAcm-2 anodic current and 1.2μWcm-2 MFC's power density). A consortium of Clostridia and δ-Proteobacteria is found on all the anode surfaces, suggesting a synergistic cooperation under anodic conditions.

AB - Self-assembled monolayers (SAMs) modified gold anodes are used in single chamber microbial fuel cells for organic removal and electricity generation. Hydrophilic (N(CH3)3+, OH, COOH) and hydrophobic (CH3) SAMs are examined for their effect on bacterial attachment, current and power output. The different substratum chemistry affects the community composition of the electrochemically active biofilm formed and thus the current and power output. Of the four SAM-modified anodes tested, N(CH3)3+ results in the shortest start up time (15days), highest current achieved (225μAcm-2) and highest MFC power density (40μWcm-2), followed by COOH (150μAcm-2 and 37μWcm-2) and OH (83μAcm-2 and 27μWcm-2) SAMs. Hydrophobic SAM decreases electrochemically active bacteria attachment and anode performance in comparison to hydrophilic SAMs (CH3 modified anodes 7μAcm-2 anodic current and 1.2μWcm-2 MFC's power density). A consortium of Clostridia and δ-Proteobacteria is found on all the anode surfaces, suggesting a synergistic cooperation under anodic conditions.

KW - Anode biofilm analysis

KW - Bioelectrocatalysis

KW - Microbial fuel cells

KW - Self assembled monolayer

KW - Surface modification

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ER -

Influence of anode surface chemistry on microbial fuel cell operation

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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