Enhanced performance and capacitance behavior of anode by rolling Fe3O4 into activated carbon in microbial fuel cells

Xinhong Peng; Hongbing Yu; Xin Wang; Qixing Zhou; Shijia Zhang; Lijuan Geng; Jingwen Sun; Zhang Cai

doi:10.1016/j.biortech.2012.06.021

Enhanced performance and capacitance behavior of anode by rolling Fe₃O₄ into activated carbon in microbial fuel cells

Xinhong Peng, Hongbing Yu, Xin Wang, Qixing Zhou, Shijia Zhang, Lijuan Geng, Jingwen Sun, Zhang Cai

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

135 Scopus citations

Abstract

Fe₃O₄ was added into the anode to improve the performance of microbial fuel cells (MFCs). Stainless steel mesh (SSM), activated carbon (AC) with SSM (AcM) and Fe₃O₄ added AcM (AcFeM) anodes had been made and investigated by electrochemical measurements. The maximum power density of AcFeM anode (809±5mW/m²) is 22% higher than that of AcM (664±17mW/m²), and 56 times higher than that of SSM anode (14±0.3mW/m²). Tafel tests indicate that the anode modified by Fe₃O₄ is kinetically more advantageous. It is demonstrated for the first time that the capacitance of anode increased after the addition of Fe₃O₄. With 10min of interruption, AcFeM exhibites a 41% higher cumulative charge of 3566±32C/m² and a 32% higher net capacitance charge of 389±18C/m² than those of the AcM control (2529±22 and 294±30C/m²), indicating that the improvement of anode performance can be also attributed to the enhancement of capacitance.

Original language	English
Pages (from-to)	450-453
Number of pages	4
Journal	Bioresource Technology
Volume	121
DOIs	https://doi.org/10.1016/j.biortech.2012.06.021
State	Published - 1 Oct 2012
Externally published	Yes

Keywords

Activated carbon
Extracellular electron transfer (EET)
FeO
Microbial fuel cell (MFC)
Transient storage

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

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

Access to Document

10.1016/j.biortech.2012.06.021

Cite this

@article{6e6a08006fb94e54a657caa9a921362d,

title = "Enhanced performance and capacitance behavior of anode by rolling Fe3O4 into activated carbon in microbial fuel cells",

abstract = "Fe3O4 was added into the anode to improve the performance of microbial fuel cells (MFCs). Stainless steel mesh (SSM), activated carbon (AC) with SSM (AcM) and Fe3O4 added AcM (AcFeM) anodes had been made and investigated by electrochemical measurements. The maximum power density of AcFeM anode (809±5mW/m2) is 22% higher than that of AcM (664±17mW/m2), and 56 times higher than that of SSM anode (14±0.3mW/m2). Tafel tests indicate that the anode modified by Fe3O4 is kinetically more advantageous. It is demonstrated for the first time that the capacitance of anode increased after the addition of Fe3O4. With 10min of interruption, AcFeM exhibites a 41% higher cumulative charge of 3566±32C/m2 and a 32% higher net capacitance charge of 389±18C/m2 than those of the AcM control (2529±22 and 294±30C/m2), indicating that the improvement of anode performance can be also attributed to the enhancement of capacitance.",

keywords = "Activated carbon, Extracellular electron transfer (EET), FeO, Microbial fuel cell (MFC), Transient storage",

author = "Xinhong Peng and Hongbing Yu and Xin Wang and Qixing Zhou and Shijia Zhang and Lijuan Geng and Jingwen Sun and Zhang Cai",

note = "Funding Information: The authors gratefully acknowledge The National Natural Science Foundation of China (Nos. 21107053 and 21037002 ) for the financial support. Thanks also go to Prof. Chunhua Feng of South China University, Guangzhou for his kind helps. ",

year = "2012",

month = oct,

day = "1",

doi = "10.1016/j.biortech.2012.06.021",

language = "English",

volume = "121",

pages = "450--453",

journal = "Bioresource Technology",

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publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Enhanced performance and capacitance behavior of anode by rolling Fe3O4 into activated carbon in microbial fuel cells

AU - Peng, Xinhong

AU - Yu, Hongbing

AU - Wang, Xin

AU - Zhou, Qixing

AU - Zhang, Shijia

AU - Geng, Lijuan

AU - Sun, Jingwen

AU - Cai, Zhang

N1 - Funding Information: The authors gratefully acknowledge The National Natural Science Foundation of China (Nos. 21107053 and 21037002 ) for the financial support. Thanks also go to Prof. Chunhua Feng of South China University, Guangzhou for his kind helps.

PY - 2012/10/1

Y1 - 2012/10/1

N2 - Fe3O4 was added into the anode to improve the performance of microbial fuel cells (MFCs). Stainless steel mesh (SSM), activated carbon (AC) with SSM (AcM) and Fe3O4 added AcM (AcFeM) anodes had been made and investigated by electrochemical measurements. The maximum power density of AcFeM anode (809±5mW/m2) is 22% higher than that of AcM (664±17mW/m2), and 56 times higher than that of SSM anode (14±0.3mW/m2). Tafel tests indicate that the anode modified by Fe3O4 is kinetically more advantageous. It is demonstrated for the first time that the capacitance of anode increased after the addition of Fe3O4. With 10min of interruption, AcFeM exhibites a 41% higher cumulative charge of 3566±32C/m2 and a 32% higher net capacitance charge of 389±18C/m2 than those of the AcM control (2529±22 and 294±30C/m2), indicating that the improvement of anode performance can be also attributed to the enhancement of capacitance.

AB - Fe3O4 was added into the anode to improve the performance of microbial fuel cells (MFCs). Stainless steel mesh (SSM), activated carbon (AC) with SSM (AcM) and Fe3O4 added AcM (AcFeM) anodes had been made and investigated by electrochemical measurements. The maximum power density of AcFeM anode (809±5mW/m2) is 22% higher than that of AcM (664±17mW/m2), and 56 times higher than that of SSM anode (14±0.3mW/m2). Tafel tests indicate that the anode modified by Fe3O4 is kinetically more advantageous. It is demonstrated for the first time that the capacitance of anode increased after the addition of Fe3O4. With 10min of interruption, AcFeM exhibites a 41% higher cumulative charge of 3566±32C/m2 and a 32% higher net capacitance charge of 389±18C/m2 than those of the AcM control (2529±22 and 294±30C/m2), indicating that the improvement of anode performance can be also attributed to the enhancement of capacitance.

KW - Activated carbon

KW - Extracellular electron transfer (EET)

KW - FeO

KW - Microbial fuel cell (MFC)

KW - Transient storage

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