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Making quantitative sense of electromicrobial production

Claassens, Nico and Cotton, Charles and Kopljar, Dennis and Bar-Even, Arren (2019) Making quantitative sense of electromicrobial production. Nature Catalysis (2), pp. 437-447. Springer. DOI: 10.1038/s41929-019-0272-0 ISSN 2520-1158

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Official URL: https://www.nature.com/articles/s41929-019-0272-0


The integration of electrochemical and microbial processes offers a unique opportunity to displace fossil carbon with CO2 and renewable energy as the primary feedstocks for carbon-based chemicals. Yet, it is unclear which strategy for CO2 activation and electron transfer to microbes has the capacity to transform the chemical industry. Here, we systematically survey experimental data for microbial growth on compounds that can be produced electrochemically, either directly or indirectly. We show that only a few strategies can support efficient electromicrobial production, where formate and methanol seem the best electron mediators in terms of energetic efficiency of feedstock bioconversion under both anaerobic and aerobic conditions. We further show that direct attachment of microbes to the cathode is highly constrained due to an inherent discrepancy between the rates of the electrochemical and biological processes. Our quantitative perspective provides a data-driven roadmap towards an economically and environmentally viable realization of electromicrobial production.

Item URL in elib:https://elib.dlr.de/130312/
Document Type:Article
Title:Making quantitative sense of electromicrobial production
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Claassens, NicoMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, GermanyUNSPECIFIED
Cotton, CharlesMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, GermanyUNSPECIFIED
Kopljar, DennisDennis.Kopljar (at) dlr.dehttps://orcid.org/0000-0002-2228-2016
Bar-Even, ArrenMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, GermanyUNSPECIFIED
Date:May 2019
Journal or Publication Title:Nature Catalysis
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1038/s41929-019-0272-0
Page Range:pp. 437-447
Keywords:Electrochemistry; Biotechnology; Electromicrobial Synthesis; Power-to-X
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Electrolysis and Hydrogen
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Elektrochemical Processes (Electrolysis), V - Future Fuels
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Kopljar, Dennis
Deposited On:16 Dec 2019 16:37
Last Modified:16 Dec 2019 16:37

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