The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells

Transforming organic waste directly into electricity or indirectly into sources of hydrogen fuel is credible through exoelectrogen microorganisms grown on the anode or cathode that catalyze electrochemical reactions. In this review, we discuss the origin of the electrochemical kinetic in both microb...

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Main Authors:	Nael Yasri, Edward P.L. Roberts, Sundaram Gunasekaran
Format:	Article
Language:	English
Published:	Elsevier 2019-11-01
Series:	Energy Reports
Online Access:	http://www.sciencedirect.com/science/article/pii/S2352484719301544

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spelling	doaj-94a45df9add747e9b02affa8e9cdddc92020-11-25T00:17:04ZengElsevierEnergy Reports2352-48472019-11-01511161136The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cellsNael Yasri0Edward P.L. Roberts1Sundaram Gunasekaran2Department of Chemistry, Faculty of Science, University of Aleppo, Syria; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr NW, AB, Canada; Correspondence to: Nael Yasri, Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary AB, T2N 1N4, Canada.Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr NW, AB, CanadaDepartment of Biological Systems Engineering 460 Henry Mall, University of Wisconsin-Madison, Madison, WI 53706, USATransforming organic waste directly into electricity or indirectly into sources of hydrogen fuel is credible through exoelectrogen microorganisms grown on the anode or cathode that catalyze electrochemical reactions. In this review, we discuss the origin of the electrochemical kinetic in both microbial fuel cells (MFCs) and microbial electrolysis cells (MECs) that are utilized to produce energy from waste through either directly by producing electric energy, or indirectly through hydrogen gas production, respectively. The concept of utilizing electrochemical techniques of cyclic voltammetry, chronoamperometric and derivative cyclic voltammetry to study the interfacial kinetics of exoelectrogenic bacteria and characterize biofilms are described. Additionally, we discuss the influence of various parts of electrochemical cells on bioelectrocatalytic processes, i.e, system design, electrolyte properties, anode and cathode materials. Thus, the necessity of optimizing parameters impacting the efficiency, rate, bacteria enrichment, and system implementations for improved biofilm performance are briefly discussed along with the figures of merit. Keywords: Exoelectrogens, Bio-electrocatalytic, MECs, MFCs, Bioenergy, Anodic respiring bacteriahttp://www.sciencedirect.com/science/article/pii/S2352484719301544
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Nael Yasri Edward P.L. Roberts Sundaram Gunasekaran
spellingShingle	Nael Yasri Edward P.L. Roberts Sundaram Gunasekaran The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells Energy Reports
author_facet	Nael Yasri Edward P.L. Roberts Sundaram Gunasekaran
author_sort	Nael Yasri
title	The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells
title_short	The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells
title_full	The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells
title_fullStr	The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells
title_full_unstemmed	The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells
title_sort	electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells
publisher	Elsevier
series	Energy Reports
issn	2352-4847
publishDate	2019-11-01
description	Transforming organic waste directly into electricity or indirectly into sources of hydrogen fuel is credible through exoelectrogen microorganisms grown on the anode or cathode that catalyze electrochemical reactions. In this review, we discuss the origin of the electrochemical kinetic in both microbial fuel cells (MFCs) and microbial electrolysis cells (MECs) that are utilized to produce energy from waste through either directly by producing electric energy, or indirectly through hydrogen gas production, respectively. The concept of utilizing electrochemical techniques of cyclic voltammetry, chronoamperometric and derivative cyclic voltammetry to study the interfacial kinetics of exoelectrogenic bacteria and characterize biofilms are described. Additionally, we discuss the influence of various parts of electrochemical cells on bioelectrocatalytic processes, i.e, system design, electrolyte properties, anode and cathode materials. Thus, the necessity of optimizing parameters impacting the efficiency, rate, bacteria enrichment, and system implementations for improved biofilm performance are briefly discussed along with the figures of merit. Keywords: Exoelectrogens, Bio-electrocatalytic, MECs, MFCs, Bioenergy, Anodic respiring bacteria
url	http://www.sciencedirect.com/science/article/pii/S2352484719301544
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The electrochemical perspective of bioelectrocatalytic activities in microbial electrolysis and microbial fuel cells

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