Abstract

Factors that affect the power performance of microbial fuel cells (MFCs) are well known to be very complex because of their multidisciplinary character, especially with respect to the electrode. In this study, for the first time, specimens of different metallic materials with smooth and rough surfaces, including Cu-based alloys and porous Ni plates whose sintering temperature was in the range of 900 °C-1100 °C, were investigated with regard to their possible application as anodes in MFCs. The results show that MFCs equipped with a Cu-Ag alloy anode could produce a higher power performance with an open-circuit voltage of 0.65 V and a power density of 1141.69 mW m-2 compared to the other anodes of Cu-Zn and Cu-Ni-Zn alloys. The reason is that the performances of anodes are proportional to the electrical conductivity of the various alloys. In addition, the porosity of the specimens is 20.3% for the Ni-1100 °C and 58.4% for the Ni-900 °C anode material. The conductivity of the anodes decreases with increasing porosity, which, in turn, will result in a lower power performance. Here, the Ni-1100 anode applied in MFCs displays a better performance with an open-circuit voltage of 0.56 V, a limiting current density of 3140 mA m-2, and a corresponding maximum power density of 448 mW m-2. The output power density could be maintained at 450 mW m-2 after a test of 50 h.

Original languageEnglish
Pages (from-to)22235-22242
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume42
Issue number34
DOIs
Publication statusPublished - Aug 24 2017

Fingerprint

Microbial fuel cells
fuel cells
Anodes
anodes
Chemical analysis
radiant flux density
Open circuit voltage
open circuit voltage
Porosity
porous plates
porosity
sintering
Current density
Sintering
current density
conductivity
Electrodes
electrical resistivity
electrodes
output

Keywords

  • Conductivity
  • Metallic anode
  • Porosity

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Developments of metallic anodes with various compositions and surfaces for the microbial fuel cells. / Yang, Yung Chin; Chen, Chien Chung; Huang, Chih Song; Wang, Chin Tsan; Ong, Hwai Chyuan.

In: International Journal of Hydrogen Energy, Vol. 42, No. 34, 24.08.2017, p. 22235-22242.

Research output: Contribution to journalArticle

Yang, Yung Chin ; Chen, Chien Chung ; Huang, Chih Song ; Wang, Chin Tsan ; Ong, Hwai Chyuan. / Developments of metallic anodes with various compositions and surfaces for the microbial fuel cells. In: International Journal of Hydrogen Energy. 2017 ; Vol. 42, No. 34. pp. 22235-22242.
@article{e7f3adb9596746ea91ea412597bd55e9,
title = "Developments of metallic anodes with various compositions and surfaces for the microbial fuel cells",
abstract = "Factors that affect the power performance of microbial fuel cells (MFCs) are well known to be very complex because of their multidisciplinary character, especially with respect to the electrode. In this study, for the first time, specimens of different metallic materials with smooth and rough surfaces, including Cu-based alloys and porous Ni plates whose sintering temperature was in the range of 900 °C-1100 °C, were investigated with regard to their possible application as anodes in MFCs. The results show that MFCs equipped with a Cu-Ag alloy anode could produce a higher power performance with an open-circuit voltage of 0.65 V and a power density of 1141.69 mW m-2 compared to the other anodes of Cu-Zn and Cu-Ni-Zn alloys. The reason is that the performances of anodes are proportional to the electrical conductivity of the various alloys. In addition, the porosity of the specimens is 20.3{\%} for the Ni-1100 °C and 58.4{\%} for the Ni-900 °C anode material. The conductivity of the anodes decreases with increasing porosity, which, in turn, will result in a lower power performance. Here, the Ni-1100 anode applied in MFCs displays a better performance with an open-circuit voltage of 0.56 V, a limiting current density of 3140 mA m-2, and a corresponding maximum power density of 448 mW m-2. The output power density could be maintained at 450 mW m-2 after a test of 50 h.",
keywords = "Conductivity, Metallic anode, Porosity",
author = "Yang, {Yung Chin} and Chen, {Chien Chung} and Huang, {Chih Song} and Wang, {Chin Tsan} and Ong, {Hwai Chyuan}",
year = "2017",
month = "8",
day = "24",
doi = "10.1016/j.ijhydene.2017.05.096",
language = "English",
volume = "42",
pages = "22235--22242",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Limited",
number = "34",

}

TY - JOUR

T1 - Developments of metallic anodes with various compositions and surfaces for the microbial fuel cells

AU - Yang, Yung Chin

AU - Chen, Chien Chung

AU - Huang, Chih Song

AU - Wang, Chin Tsan

AU - Ong, Hwai Chyuan

PY - 2017/8/24

Y1 - 2017/8/24

N2 - Factors that affect the power performance of microbial fuel cells (MFCs) are well known to be very complex because of their multidisciplinary character, especially with respect to the electrode. In this study, for the first time, specimens of different metallic materials with smooth and rough surfaces, including Cu-based alloys and porous Ni plates whose sintering temperature was in the range of 900 °C-1100 °C, were investigated with regard to their possible application as anodes in MFCs. The results show that MFCs equipped with a Cu-Ag alloy anode could produce a higher power performance with an open-circuit voltage of 0.65 V and a power density of 1141.69 mW m-2 compared to the other anodes of Cu-Zn and Cu-Ni-Zn alloys. The reason is that the performances of anodes are proportional to the electrical conductivity of the various alloys. In addition, the porosity of the specimens is 20.3% for the Ni-1100 °C and 58.4% for the Ni-900 °C anode material. The conductivity of the anodes decreases with increasing porosity, which, in turn, will result in a lower power performance. Here, the Ni-1100 anode applied in MFCs displays a better performance with an open-circuit voltage of 0.56 V, a limiting current density of 3140 mA m-2, and a corresponding maximum power density of 448 mW m-2. The output power density could be maintained at 450 mW m-2 after a test of 50 h.

AB - Factors that affect the power performance of microbial fuel cells (MFCs) are well known to be very complex because of their multidisciplinary character, especially with respect to the electrode. In this study, for the first time, specimens of different metallic materials with smooth and rough surfaces, including Cu-based alloys and porous Ni plates whose sintering temperature was in the range of 900 °C-1100 °C, were investigated with regard to their possible application as anodes in MFCs. The results show that MFCs equipped with a Cu-Ag alloy anode could produce a higher power performance with an open-circuit voltage of 0.65 V and a power density of 1141.69 mW m-2 compared to the other anodes of Cu-Zn and Cu-Ni-Zn alloys. The reason is that the performances of anodes are proportional to the electrical conductivity of the various alloys. In addition, the porosity of the specimens is 20.3% for the Ni-1100 °C and 58.4% for the Ni-900 °C anode material. The conductivity of the anodes decreases with increasing porosity, which, in turn, will result in a lower power performance. Here, the Ni-1100 anode applied in MFCs displays a better performance with an open-circuit voltage of 0.56 V, a limiting current density of 3140 mA m-2, and a corresponding maximum power density of 448 mW m-2. The output power density could be maintained at 450 mW m-2 after a test of 50 h.

KW - Conductivity

KW - Metallic anode

KW - Porosity

UR - http://www.scopus.com/inward/record.url?scp=85020403485&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85020403485&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2017.05.096

DO - 10.1016/j.ijhydene.2017.05.096

M3 - Article

AN - SCOPUS:85020403485

VL - 42

SP - 22235

EP - 22242

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 34

ER -