Surface modification of Shewanella oneidensis MR-1 with polypyrrole-dopamine coating for improvement of power generation in microbial fuel cells

Dongliang Wang; Jingyi Pan; Min Xu; Bingchuan Liu; Jingping Hu; Shaogang Hu; Huijie Hou; Khaled Elmaadawy; Jiakuan Yang; Keke Xiao; Sha Liang

doi:10.1016/j.jpowsour.2020.229220

Surface modification of Shewanella oneidensis MR-1 with polypyrrole-dopamine coating for improvement of power generation in microbial fuel cells

Dongliang Wang, Jingyi Pan, Min Xu, Bingchuan Liu^*, Jingping Hu, Shaogang Hu, Huijie Hou, Khaled Elmaadawy, Jiakuan Yang, Keke Xiao, Sha Liang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Modification of exoelectrogens with conjugated polymers is an efficient strategy to improve extracellular electron transfer (EET) from individual cells to electrode. However, due to the hydrophobic nature of conductive polymers, improving cell-electrode adhesion needs to be addressed. In this research, we report the modification of Shewanella oneidensis MR-1 by successively in situ coating individual cells with polypyrrole (PPy) and adhesive polydopamine (PDA). The PPy-PDA modified cells display improved conductivity and adhesion. We employ PPy-PDA modified cells as anode in microbial fuel cells (MFCs) and find that electro-activity of anode is greatly improved as direct EET is improved, and riboflavin secretion which is conducive to indirect EET is enhanced. The maximum power density of MFCs employing PPy-PDA modified cells is 11.8 and 4.8 higher than that of PPy modified and unmodified cells, respectively. Our results indicate this in situ modification of exoelectrogens with PPY-PDA oﬀers a facile and promising strategy for performance improvement of MFCs.

Original language	English
Article number	229220
Journal	Journal of Power Sources
Volume	483
DOIs	https://doi.org/10.1016/j.jpowsour.2020.229220
State	Published - 31 Jan 2021
Externally published	Yes

Keywords

Cell adhesion
Extracellular electron transfer
Microbial fuel cells (MFCs)
Polymer
Surface modification

UN SDGs

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

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10.1016/j.jpowsour.2020.229220

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title = "Surface modification of Shewanella oneidensis MR-1 with polypyrrole-dopamine coating for improvement of power generation in microbial fuel cells",

abstract = "Modification of exoelectrogens with conjugated polymers is an efficient strategy to improve extracellular electron transfer (EET) from individual cells to electrode. However, due to the hydrophobic nature of conductive polymers, improving cell-electrode adhesion needs to be addressed. In this research, we report the modification of Shewanella oneidensis MR-1 by successively in situ coating individual cells with polypyrrole (PPy) and adhesive polydopamine (PDA). The PPy-PDA modified cells display improved conductivity and adhesion. We employ PPy-PDA modified cells as anode in microbial fuel cells (MFCs) and find that electro-activity of anode is greatly improved as direct EET is improved, and riboflavin secretion which is conducive to indirect EET is enhanced. The maximum power density of MFCs employing PPy-PDA modified cells is 11.8 and 4.8 higher than that of PPy modified and unmodified cells, respectively. Our results indicate this in situ modification of exoelectrogens with PPY-PDA oﬀers a facile and promising strategy for performance improvement of MFCs.",

keywords = "Cell adhesion, Extracellular electron transfer, Microbial fuel cells (MFCs), Polymer, Surface modification",

author = "Dongliang Wang and Jingyi Pan and Min Xu and Bingchuan Liu and Jingping Hu and Shaogang Hu and Huijie Hou and Khaled Elmaadawy and Jiakuan Yang and Keke Xiao and Sha Liang",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

month = jan,

day = "31",

doi = "10.1016/j.jpowsour.2020.229220",

language = "英语",

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journal = "Journal of Power Sources",

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TY - JOUR

T1 - Surface modification of Shewanella oneidensis MR-1 with polypyrrole-dopamine coating for improvement of power generation in microbial fuel cells

AU - Wang, Dongliang

AU - Pan, Jingyi

AU - Xu, Min

AU - Liu, Bingchuan

AU - Hu, Jingping

AU - Hu, Shaogang

AU - Hou, Huijie

AU - Elmaadawy, Khaled

AU - Yang, Jiakuan

AU - Xiao, Keke

AU - Liang, Sha

PY - 2021/1/31

Y1 - 2021/1/31

N2 - Modification of exoelectrogens with conjugated polymers is an efficient strategy to improve extracellular electron transfer (EET) from individual cells to electrode. However, due to the hydrophobic nature of conductive polymers, improving cell-electrode adhesion needs to be addressed. In this research, we report the modification of Shewanella oneidensis MR-1 by successively in situ coating individual cells with polypyrrole (PPy) and adhesive polydopamine (PDA). The PPy-PDA modified cells display improved conductivity and adhesion. We employ PPy-PDA modified cells as anode in microbial fuel cells (MFCs) and find that electro-activity of anode is greatly improved as direct EET is improved, and riboflavin secretion which is conducive to indirect EET is enhanced. The maximum power density of MFCs employing PPy-PDA modified cells is 11.8 and 4.8 higher than that of PPy modified and unmodified cells, respectively. Our results indicate this in situ modification of exoelectrogens with PPY-PDA oﬀers a facile and promising strategy for performance improvement of MFCs.

AB - Modification of exoelectrogens with conjugated polymers is an efficient strategy to improve extracellular electron transfer (EET) from individual cells to electrode. However, due to the hydrophobic nature of conductive polymers, improving cell-electrode adhesion needs to be addressed. In this research, we report the modification of Shewanella oneidensis MR-1 by successively in situ coating individual cells with polypyrrole (PPy) and adhesive polydopamine (PDA). The PPy-PDA modified cells display improved conductivity and adhesion. We employ PPy-PDA modified cells as anode in microbial fuel cells (MFCs) and find that electro-activity of anode is greatly improved as direct EET is improved, and riboflavin secretion which is conducive to indirect EET is enhanced. The maximum power density of MFCs employing PPy-PDA modified cells is 11.8 and 4.8 higher than that of PPy modified and unmodified cells, respectively. Our results indicate this in situ modification of exoelectrogens with PPY-PDA oﬀers a facile and promising strategy for performance improvement of MFCs.

KW - Cell adhesion

KW - Extracellular electron transfer

KW - Microbial fuel cells (MFCs)

KW - Polymer

KW - Surface modification

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U2 - 10.1016/j.jpowsour.2020.229220

DO - 10.1016/j.jpowsour.2020.229220

M3 - 文章

AN - SCOPUS:85096537964

SN - 0378-7753

VL - 483

JO - Journal of Power Sources

JF - Journal of Power Sources

M1 - 229220

ER -

Surface modification of Shewanella oneidensis MR-1 with polypyrrole-dopamine coating for improvement of power generation in microbial fuel cells

Abstract

Keywords

UN SDGs

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