Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1002/cssc.202201426 |
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| Title (Primary) | Hetero-coupling of bio-based medium chain carboxylic acids by Kolbe electrolysis enables high fuel yield and efficiency |
| Author | Neubert, K.; Hell, M.; Chávez Morejón, M.; Harnisch, F.
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| Source Titel | ChemSusChem |
| Year | 2022 |
| Department | UMB |
| Volume | 15 |
| Issue | 21 |
| Page From | e202201426 |
| Language | englisch |
| Topic | T7 Bioeconomy |
| Supplements | https://chemistry-europe.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fcssc.202201426&file=cssc202201426-s1-Neubert_et_al_Supporting_information_for_upload.pdf |
| Keywords | bioeconomy; electrobiorefinery; Electrochemistry; Green chemistry; power-to-fuels |
| Abstract | Mixtures of n -carboxylic acids ( n -CA) as derived from microbial conversion of waste biomass are converted to bio-fuel using Kolbe electrolysis. While providing full carbon and electron balances key parameters like electrolysis time, chain length of n -CA and pH were investigated for their influence on reaction efficiency. Electrolysis of n -hexanoic acid showed the highest Coulombic Efficiency ( CE ) of 58.9 ± 16.4% (n = 4) for liquid fuel production among individually tested n -CA. Duration of the electrolysis was varied within a range of 0.27 to 1.02 Faraday Equivalents without loss of efficiency. Noteworthy, CE increased to ~70% by hetero-coupling when electrolysing n -CA mixtures regardless of the applied pH. Thus, 1 L of fuel can be produced from 12.4 mol of n -CA mixture using 5.02 kWh (that accounts to <1 € L -1 ). Thus, a coupling with microbial processes producing n -CA mixtures from different organic substrates and waste is more than promising. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26549 |
| Neubert, K., Hell, M., Chávez Morejón, M., Harnisch, F. (2022): Hetero-coupling of bio-based medium chain carboxylic acids by Kolbe electrolysis enables high fuel yield and efficiency ChemSusChem 15 (21), e202201426 10.1002/cssc.202201426 |
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