Progress in enhancing electron transfer rate between exoelectrogenic microorganisms and electrode interface.

Xiang Liu; Junqi Zhang; Baocai Zhang; Chi Yang; Feng LI; Hao Song

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Progress in enhancing electron transfer rate between exoelectrogenic microorganisms and electrode interface.

Author: Xiang LIU ¹ ; Junqi ZHANG ¹ ; Baocai ZHANG ¹ ; Chi YANG ¹ ; Feng LI ¹ ; Hao SONG ¹
Author Information

1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
Publication Type:Review
Keywords: biofilm; exoelectrogenic microorganisms; extracellular electron transfer; microbe-electrode interactions; microbial electrochemical technologies
MeSH: Bioelectric Energy Sources; Biofilms; Electrodes; Electron Transport; Electrons
From: Chinese Journal of Biotechnology 2021;37(2):361-377
CountryChina
Language:Chinese
Abstract: Exoelectrogenic microorganisms are the research basis of microbial electrochemical technologies such as microbial fuel cells, electrolytic cells and electrosynthesis. However, their applications are restricted in organic degradation, power generation, seawater desalination, bioremediation, and biosensors due to the weak ability of biofilm formation and the low extracellular electron transfer (EET) efficiency between exoelectrogenic microorganisms and electrode. Therefore, engineering optimization of interaction between exoelectrogenic microorganisms and electrode interface recently has been the research focus. In this article, we review the updated progress in strategies for enhancing microbe-electrode interactions based on microbial engineering modifications, with a focus on the applicability and limitations of these strategies. In addition, we also address research prospects of enhancing the interaction between electroactive cells and electrodes.