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doi:10.22028/D291-39313
Titel: | Sustainable Electrochemical Depolymerization of Lignin in Reusable Ionic Liquids |
VerfasserIn: | Dier, Tobias K. F. Rauber, Daniel Durneata, Dan Hempelmann, Rolf Volmer, Dietrich A. |
Sprache: | Englisch |
Titel: | Scientific Reports |
Bandnummer: | 7 |
Heft: | 1 |
Verlag/Plattform: | Springer Nature |
Erscheinungsjahr: | 2017 |
Freie Schlagwörter: | Analytical chemistry Biofuels Energy |
DDC-Sachgruppe: | 500 Naturwissenschaften |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | Lignin’s aromatic building blocks provide a chemical resource that is, in theory, ideal for substitution of aromatic petrochemicals. Moreover, degradation and valorization of lignin has the potential to generate many high-value chemicals for technical applications. In this study, electrochemical degradation of alkali and Organosolv lignin was performed using the ionic liquids 1-ethyl-3-methylimidazolium trifluoromethanesulfonate and triethylammonium methanesulfonate. The extensive degradation of the investigated lignins with simultaneous almost full recovery of the electrolyte materials provided a sustainable alternative to more common lignin degradation processes. We demonstrate here that both the presence (and the absence) of water during electrolysis and proton transport reactions had significant impact on the degradation efficiency. Hydrogen peroxide radical formation promoted certain electrochemical mechanisms in electrolyte systems “contaminated” with water and increased yields of low molecular weight products significantly. The proposed mechanisms were tentatively confirmed by determining product distributions using a combination of liquid chromatography-mass spectrometry and gas-chromatography-mass spectrometry, allowing measurement of both polar versus non-polar as well as volatile versus non-volatile components in the mixtures. |
DOI der Erstveröffentlichung: | 10.1038/s41598-017-05316-x |
URL der Erstveröffentlichung: | https://doi.org/10.1038/s41598-017-05316-x |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-393136 hdl:20.500.11880/35443 http://dx.doi.org/10.22028/D291-39313 |
ISSN: | 2045-2322 |
Datum des Eintrags: | 15-Mär-2023 |
Bezeichnung des in Beziehung stehenden Objekts: | Supplementary information |
In Beziehung stehendes Objekt: | https://static-content.springer.com/esm/art%3A10.1038%2Fs41598-017-05316-x/MediaObjects/41598_2017_5316_MOESM1_ESM.pdf |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Chemie |
Professur: | NT - Prof. Dr. Kaspar Hegetschweiler NT - Prof. Dr. Christopher Kay |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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s41598-017-05316-x.pdf | 2,28 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons