de.mpg.escidoc.pubman.appbase.FacesBean
English
 
Help Guide Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Hydrogenolysis of Cellulose over Cu-Based Catalysts—Analysis of the Reaction Network

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons59036

Tajvidi,  K.
Research Group Palkovits, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons58862

Palkovits,  R.
Research Group Palkovits, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Tajvidi, K., Hausoul, P. J. C., & Palkovits, R. (2014). Hydrogenolysis of Cellulose over Cu-Based Catalysts—Analysis of the Reaction Network. ChemSusChem, 7(5), 1311-1317. doi:10.1002/cssc.201300978.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0024-A697-7
Abstract
A series of polyols, carbohydrates, and cellulose were tested in the aqueous, CuO/ZnO/Al2O3-catalyzed hydrogenolysis reaction at 245 °C and 50 bar H2. The compositions of liquid-phase products were analyzed; based on these results a unified reaction mechanism is proposed that accounts for the observed product distribution. Elementary transformations such as dehydration, dehydrogenation/hydrogenation, Lobry de Bruyn–van Ekenstein isomerization and retro-aldol cleavage were identified as most important for controlling the selectivity of simple polyols and carbohydrates. For cellulose the product distribution is considerably different than for glucose or sorbitol, indicating a change in the reaction pathway. Therefore, next to the traditional hydrolysis of the glycosidic bond, an additional depolymerization mechanism involving only the reducing ends of cellulose oligomers is proposed to account for this observation.