Effect of pore size on the current produced by 3-dimensional porous microbial anodes: A critical review.
Bioanode
Bioelectrochemical system
Electroactive biofilm
Microbial fuel cell
Porosity
Journal
Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523
Informations de publication
Date de publication:
Oct 2019
Oct 2019
Historique:
received:
19
02
2019
revised:
04
06
2019
accepted:
10
06
2019
pubmed:
14
7
2019
medline:
19
9
2019
entrez:
14
7
2019
Statut:
ppublish
Résumé
Microbial anodes are the cornerstone of most electro-microbial processes. Designing 3-dimensional porous electrodes to increase the surface area of the electroactive biofilm they support is a key challenge in order to boost their performance. In this context, the critical review presented here aims to assess whether an optimal range of pore size may exist for the design of microbial anodes. Pore sizes of a few micrometres can enable microbial cells to penetrate but in conditions that do not favour efficient development of electroactive biofilms. Pores of a few tens of micrometres are subject to clogging. Sizes of a few hundreds of micrometres allow penetration of the biofilm inside the structure, but its development is limited by internal acidification. Consequently, pore sizes of a millimetre or so appear to be the most suitable. In addition, a simple theoretical approach is described to establish basis for porous microbial anode design.
Identifiants
pubmed: 31300306
pii: S0960-8524(19)30871-5
doi: 10.1016/j.biortech.2019.121641
pii:
doi:
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
121641Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.