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Combination of bioelectrochemical systems and electrochemical capacitors: Principles, analysis and opportunities

Caiz�n-Juanarena, Leire; Borsje, Casper; Sleutels, Tom; Yntema, Doekle; Santoro, Carlo; Ieropoulos, Ioannis; Soavi, Francesca; ter Heijne, Annemiek

Combination of bioelectrochemical systems and electrochemical capacitors: Principles, analysis and opportunities Thumbnail


Authors

Leire Caiz�n-Juanarena

Casper Borsje

Tom Sleutels

Doekle Yntema

Carlo Santoro

Yannis Ieropoulos Ioannis2.Ieropoulos@uwe.ac.uk
Professor in Bioenergy & Director of B-B

Francesca Soavi

Annemiek ter Heijne



Abstract

© 2019 The Authors Bioelectrochemical systems combine electrodes and reactions driven by microorganisms for many different applications. The conversion of organic material in wastewater into electricity occurs in microbial fuel cells (MFCs). The power densities produced by MFCs are still too low for application. One way of increasing their performance is to combine them with electrochemical capacitors, widely used for charge storage purposes. Capacitive MFCs, i.e. the combination of capacitors and MFCs, allow for energy harvesting and storage and have shown to result in improved power densities, which facilitates the up scaling and application of the technology. This manuscript summarizes the state-of-the-art of combining capacitors with MFCs, starting with the theory and working principle of electrochemical capacitors. We address how different electrochemical measurements can be used to determine (bio)electrochemical capacitance and show how the measurement data can be interpreted. In addition, we present examples of the combination of electrochemical capacitors, both internal and external, that have been used to enhance MFC performance. Finally, we discuss the most promising applications and the main existing challenges for capacitive MFCs.

Citation

Caizán-Juanarena, L., Borsje, C., Sleutels, T., Yntema, D., Santoro, C., Ieropoulos, I., …ter Heijne, A. (2020). Combination of bioelectrochemical systems and electrochemical capacitors: Principles, analysis and opportunities. Biotechnology Advances, 39, Article 107456. https://doi.org/10.1016/j.biotechadv.2019.107456

Journal Article Type Review
Acceptance Date Oct 13, 2019
Online Publication Date Oct 13, 2019
Publication Date Mar 1, 2020
Deposit Date Oct 30, 2020
Publicly Available Date Mar 29, 2024
Journal Biotechnology Advances
Print ISSN 0734-9750
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 39
Article Number 107456
DOI https://doi.org/10.1016/j.biotechadv.2019.107456
Keywords microbial fuel cell; capacitance; electrical double-layer; scaling up; supercapacitor; power output
Public URL https://uwe-repository.worktribe.com/output/6804399

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