Standard

Asymmetric reactors as an innovative approach for optimum microbial fuel cells performance. / Song, Bo; Wang, Qi; Ali, Jafar et al.

In: Energy Conversion and Management, Vol. 310, 118475, 06.2024.

Research output: Contribution to journalArticlepeer-review

Harvard

Song, B, Wang, Q, Ali, J, Wang, Z, Wang, L, Wang, J, Li, J, Glebov, EM & Zhuang, X 2024, 'Asymmetric reactors as an innovative approach for optimum microbial fuel cells performance', Energy Conversion and Management, vol. 310, 118475. https://doi.org/10.1016/j.enconman.2024.118475

APA

Song, B., Wang, Q., Ali, J., Wang, Z., Wang, L., Wang, J., Li, J., Glebov, E. M., & Zhuang, X. (2024). Asymmetric reactors as an innovative approach for optimum microbial fuel cells performance. Energy Conversion and Management, 310, [118475]. https://doi.org/10.1016/j.enconman.2024.118475

Vancouver

Song B, Wang Q, Ali J, Wang Z, Wang L, Wang J et al. Asymmetric reactors as an innovative approach for optimum microbial fuel cells performance. Energy Conversion and Management. 2024 Jun;310:118475. doi: 10.1016/j.enconman.2024.118475

Author

Song, Bo ; Wang, Qi ; Ali, Jafar et al. / Asymmetric reactors as an innovative approach for optimum microbial fuel cells performance. In: Energy Conversion and Management. 2024 ; Vol. 310.

BibTeX

@article{b249d80582674057b06a2526ab6bf279,
title = "Asymmetric reactors as an innovative approach for optimum microbial fuel cells performance",
abstract = "Microbial fuel cells (MFCs) exhibit asymmetric overpotentials and redox potentials/rates at the cathode and anode. However, the impact of this asymmetric on power density and anode microbial community remains poorly understood. In this study, asymmetric reactors were designed for H-type MFCs to investigate this configuration. Contrary to the initial expectation of increased MFC power output with larger cathode volumes, it was unexpectedly found that the small-cathode reactor outperformed the large-cathode reactor, achieving a 61 % increase in maximum power density. Electrochemical characterization revealed a slightly lower charge transfer resistance (29.34 Ω) in the small-cathode reactor with carbon-felt anode biofilm in PBS. Moreover, 16S rRNA sequence analysis showed that the small-cathode reactor harbored a higher proportion of anaerobic bacteria (83 %), lower species diversity, and a higher abundance of exoelectrogens. Additionally, higher abundances of key gene modules (top eight), such as quinone oxidoreductase and citrate cycle, were observed in the small-cathode reactor. The anode biofilms in both reactors also synthesized some vitamins, such as menaquinone and thiamine. Furthermore, compared to the large-cathode reactor, each set of the small-cathode reactor saved ¥ 20, 23 g of borosilicate, and 55 mL of cathode electrolytes. This study sheds light on the interplay between reactor conformation and performance, contributing to the development of low-cost, high-performance MFCs for real field conditions. ",
keywords = "Asymmetric Reactor, Conformation, Microbial Community, Microbial Fuel Cell, Power Density",
author = "Bo Song and Qi Wang and Jafar Ali and Zhibin Wang and Lei Wang and Jiahe Wang and Jiaxin Li and Glebov, {Evgeni M.} and Xuliang Zhuang",
note = "This work was supported by the National Natural Science Foundation of China (21976197, 42230411, and 42177099), the CAS International Partnership Program (grant number: 121311KYSB20200017), and the Fundamental Research Funds for the Central Universities (E1E40508X2).",
year = "2024",
month = jun,
doi = "10.1016/j.enconman.2024.118475",
language = "English",
volume = "310",
journal = "Energy Conversion and Management",
issn = "0196-8904",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Asymmetric reactors as an innovative approach for optimum microbial fuel cells performance

AU - Song, Bo

AU - Wang, Qi

AU - Ali, Jafar

AU - Wang, Zhibin

AU - Wang, Lei

AU - Wang, Jiahe

AU - Li, Jiaxin

AU - Glebov, Evgeni M.

AU - Zhuang, Xuliang

N1 - This work was supported by the National Natural Science Foundation of China (21976197, 42230411, and 42177099), the CAS International Partnership Program (grant number: 121311KYSB20200017), and the Fundamental Research Funds for the Central Universities (E1E40508X2).

PY - 2024/6

Y1 - 2024/6

N2 - Microbial fuel cells (MFCs) exhibit asymmetric overpotentials and redox potentials/rates at the cathode and anode. However, the impact of this asymmetric on power density and anode microbial community remains poorly understood. In this study, asymmetric reactors were designed for H-type MFCs to investigate this configuration. Contrary to the initial expectation of increased MFC power output with larger cathode volumes, it was unexpectedly found that the small-cathode reactor outperformed the large-cathode reactor, achieving a 61 % increase in maximum power density. Electrochemical characterization revealed a slightly lower charge transfer resistance (29.34 Ω) in the small-cathode reactor with carbon-felt anode biofilm in PBS. Moreover, 16S rRNA sequence analysis showed that the small-cathode reactor harbored a higher proportion of anaerobic bacteria (83 %), lower species diversity, and a higher abundance of exoelectrogens. Additionally, higher abundances of key gene modules (top eight), such as quinone oxidoreductase and citrate cycle, were observed in the small-cathode reactor. The anode biofilms in both reactors also synthesized some vitamins, such as menaquinone and thiamine. Furthermore, compared to the large-cathode reactor, each set of the small-cathode reactor saved ¥ 20, 23 g of borosilicate, and 55 mL of cathode electrolytes. This study sheds light on the interplay between reactor conformation and performance, contributing to the development of low-cost, high-performance MFCs for real field conditions.

AB - Microbial fuel cells (MFCs) exhibit asymmetric overpotentials and redox potentials/rates at the cathode and anode. However, the impact of this asymmetric on power density and anode microbial community remains poorly understood. In this study, asymmetric reactors were designed for H-type MFCs to investigate this configuration. Contrary to the initial expectation of increased MFC power output with larger cathode volumes, it was unexpectedly found that the small-cathode reactor outperformed the large-cathode reactor, achieving a 61 % increase in maximum power density. Electrochemical characterization revealed a slightly lower charge transfer resistance (29.34 Ω) in the small-cathode reactor with carbon-felt anode biofilm in PBS. Moreover, 16S rRNA sequence analysis showed that the small-cathode reactor harbored a higher proportion of anaerobic bacteria (83 %), lower species diversity, and a higher abundance of exoelectrogens. Additionally, higher abundances of key gene modules (top eight), such as quinone oxidoreductase and citrate cycle, were observed in the small-cathode reactor. The anode biofilms in both reactors also synthesized some vitamins, such as menaquinone and thiamine. Furthermore, compared to the large-cathode reactor, each set of the small-cathode reactor saved ¥ 20, 23 g of borosilicate, and 55 mL of cathode electrolytes. This study sheds light on the interplay between reactor conformation and performance, contributing to the development of low-cost, high-performance MFCs for real field conditions.

KW - Asymmetric Reactor

KW - Conformation

KW - Microbial Community

KW - Microbial Fuel Cell

KW - Power Density

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85191659970&origin=inward&txGid=b7d17dd0182dd998432609877b540903

UR - https://www.mendeley.com/catalogue/c52c441d-d054-38ca-8fc2-bfff699ccb77/

U2 - 10.1016/j.enconman.2024.118475

DO - 10.1016/j.enconman.2024.118475

M3 - Article

VL - 310

JO - Energy Conversion and Management

JF - Energy Conversion and Management

SN - 0196-8904

M1 - 118475

ER -

ID: 60864134