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Coupled electrochemical and microbial catalysis for the production of polymer bricks.

ABSTRACT: Power-to-X technologies have the potential to pave the way towards a future resource-secure bioeconomy as they enable the exploitation of renewable resources and CO 2 . Herein, we present the coupled electrocatalytic and microbial catalysis of the C5-polymer precursors mesaconate and 2 S -methylsuccinate from CO 2 and electric energy by in situ coupling electrochemical and microbial catalysis at 1 L-scale. In the first phase, 6.1 ± 2.5 mM formate was produced by electrochemical CO 2 reduction. In the second phase, formate served as the substrate for microbial catalysis by an engineered strain of Methylobacterium extorquens AM-1 producing 7 ± 2 µM and 10 ± 5 µM of mesaconate and 2 S -methylsuccinate, respectively. The proof-of-concept shows an overall conversion efficiency of 0.2% being 0.4% of the theoretical maximum.

SUBMITTER: Hegner R

PROVIDER: S-EPMC7590143 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Coupled Electrochemical and Microbial Catalysis for the Production of Polymer Bricks.

Hegner Richard R Neubert Katharina K Kroner Cora C Holtmann Dirk D Harnisch Falk F

ChemSusChem 20200817 19

Power-to-X technologies have the potential to pave the way towards a future resource-secure bioeconomy as they enable the exploitation of renewable resources and CO2 . Herein, the coupled electrocatalytic and microbial catalysis of the C5 -polymer precursors mesaconate and 2S-methylsuccinate from CO2 and electric energy by in situ coupling electrochemical and microbial catalysis at 1 L-scale was developed. In the first phase, 6.1±2.5 mm formate was produced by el ...[more]

PMID: 32658366

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