Beine, Anna Katharina ; Ludovicy, Jil ; Chai, Jiachun ; Hofmann, Jan P. ; Glotzbach, Christoph ; Hausoul, Peter J. C. ; Palkovits, Regina (2022):
Ru on N‐doped Carbon for the Selective Hydrogenolysis of Sugars and Sugar Alcohols. (Publisher's Version)
In: ChemCatChem, 14 (11), Wiley-VCH, e-ISSN 1867-3899,
DOI: 10.26083/tuprints-00022448,
[Article]
![]() |
Text
CCTC_CCTC202101908.pdf Copyright Information: CC-BY-NC-ND 4.0 International - Creative Commons, Attribution NonCommercial, NoDerivs. Download (2MB) |
Item Type: | Article |
---|---|
Origin: | Secondary publication DeepGreen |
Status: | Publisher's Version |
Title: | Ru on N‐doped Carbon for the Selective Hydrogenolysis of Sugars and Sugar Alcohols |
Language: | English |
Abstract: | Glycols are accessible via metal‐catalyzed hydrogenolysis of sugar alcohols such as xylitol obtained from hemicellulose. Ru‐based catalysts are highly active but also catalyze side‐reactions such as decarbonylation and deoxygenation. To achieve high selectivity, these reactions need to be suppressed. In our study, we introduce heteroatom doped carbon materials as catalyst supports providing high selectivity. Heteroatom doping with nitrogen and oxygen was achieved by treating activated carbon with HNO₃, NH₃ and H₂ or carbonization of organic precursors. For all N‐doped materials a high glycol selectivity of ∼ 80 % for sorbitol and xylitol and 44 % for xylose and glucose was reached. XPS analysis confirms the presence of different nitrogen species at the carbon surface and varying ligand effects for oxygen and nitrogen. Oxygen has an electron withdrawing effect on ruthenium and leads to a decreased activity. Nitrogen has weaker electron withdrawing properties, resulting in an enhanced selectivity. |
Journal or Publication Title: | ChemCatChem |
Volume of the journal: | 14 |
Issue Number: | 11 |
Place of Publication: | Darmstadt |
Publisher: | Wiley-VCH |
Collation: | 8 Seiten |
Uncontrolled Keywords: | Activated Carbon, Glycols, Hydrogenolysis, N-doping, Ruthenium |
Classification DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Surface Science |
Date Deposited: | 10 Oct 2022 12:49 |
Last Modified: | 17 Oct 2022 09:20 |
DOI: | 10.26083/tuprints-00022448 |
Corresponding Links: | |
URN: | urn:nbn:de:tuda-tuprints-224489 |
Additional Information: | This article also appears in: 55. Jahrestreffen Deutscher Katalytiker |
SWORD Depositor: | Deep Green |
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/22448 |
PPN: | 500310491 |
Export: |
![]() |
View Item |