Oefner, Niklas ; Shuck, Christopher E. ; Schumacher, Leon ; Heck, Franziska ; Hofmann, Kathrin ; Schmidpeter, Jana ; Li, Weiqun ; Bahri, Mounib ; Mehdi, B. Layla ; Drochner, Alfons ; Albert, Barbara ; Hess, Christian ; Gogotsi, Yury ; Etzold, Bastian J. M. (2023)
MXene aerogel derived ultra-active vanadia catalyst for selective conversion of sustainable alcohols to base chemicals.
In: ACS Applied Materials & Interfaces, 15 (13)
doi: 10.1021/acsami.2c22720
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Selective oxidation reactions are an important class of the current chemical industry and will be highly important for future sustainable chemical production. Especially, the selective oxidation of primary alcohols is expected to be of high future interest, as alcohols can be obtained on technical scales from biomass fermentation. The oxidation of primary alcohols produces aldehydes, which are important intermediates. While selective methanol oxidation is industrially established, the commercial catalyst suffers from deactivation. Ethanol selective oxidation is not commercialized but would give access to sustainable acetaldehyde production when using renewable ethanol. In this work, it is shown that employing 2D MXenes as building blocks allows one to design a nanostructured oxide catalyst composed of mixed valence vanadium oxides, which outperforms on both reactions known materials by nearly an order of magnitude in activity, while showing high selectivity and stability. The study shows that the synthesis route employing 2D materials is key to obtain these attractive catalysts. V4C3Tx MXene structured as an aerogel precursor needs to be employed and mildly oxidized in an alcohol and oxygen atmosphere to result in the aspired nanostructured catalyst composed of mixed valence VO2, V6O13, and V3O7. Very likely, the bulk stable reduced valence state of the material together coupled with the nanorod arrangement allows for unprecedented oxygen mobility as well as active sites and results in an ultra-active catalyst.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Oefner, Niklas ; Shuck, Christopher E. ; Schumacher, Leon ; Heck, Franziska ; Hofmann, Kathrin ; Schmidpeter, Jana ; Li, Weiqun ; Bahri, Mounib ; Mehdi, B. Layla ; Drochner, Alfons ; Albert, Barbara ; Hess, Christian ; Gogotsi, Yury ; Etzold, Bastian J. M. |
| Art des Eintrags: | Bibliographie |
| Titel: | MXene aerogel derived ultra-active vanadia catalyst for selective conversion of sustainable alcohols to base chemicals |
| Sprache: | Englisch |
| Publikationsjahr: | 24 März 2023 |
| Verlag: | ACS Publications |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ACS Applied Materials & Interfaces |
| Jahrgang/Volume einer Zeitschrift: | 15 |
| (Heft-)Nummer: | 13 |
| DOI: | 10.1021/acsami.2c22720 |
| URL / URN: | https://pubs.acs.org/doi/10.1021/acsami.2c22720 |
| Kurzbeschreibung (Abstract): | Selective oxidation reactions are an important class of the current chemical industry and will be highly important for future sustainable chemical production. Especially, the selective oxidation of primary alcohols is expected to be of high future interest, as alcohols can be obtained on technical scales from biomass fermentation. The oxidation of primary alcohols produces aldehydes, which are important intermediates. While selective methanol oxidation is industrially established, the commercial catalyst suffers from deactivation. Ethanol selective oxidation is not commercialized but would give access to sustainable acetaldehyde production when using renewable ethanol. In this work, it is shown that employing 2D MXenes as building blocks allows one to design a nanostructured oxide catalyst composed of mixed valence vanadium oxides, which outperforms on both reactions known materials by nearly an order of magnitude in activity, while showing high selectivity and stability. The study shows that the synthesis route employing 2D materials is key to obtain these attractive catalysts. V4C3Tx MXene structured as an aerogel precursor needs to be employed and mildly oxidized in an alcohol and oxygen atmosphere to result in the aspired nanostructured catalyst composed of mixed valence VO2, V6O13, and V3O7. Very likely, the bulk stable reduced valence state of the material together coupled with the nanorod arrangement allows for unprecedented oxygen mobility as well as active sites and results in an ultra-active catalyst. |
| Fachbereich(e)/-gebiet(e): | DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie I DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1487: Eisen, neu gedacht! |
| Hinterlegungsdatum: | 12 Mai 2023 16:58 |
| Letzte Änderung: | 03 Jul 2023 06:29 |
| PPN: | 507864670 |
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