Weiß A, Munoz M, Haas A, Rietzler F, Steinrück HP, Haumann M, Wasserscheid P, Etzold B (2016)
Publication Status: Published
Publication Type: Journal article
Publication year: 2016
Publisher: American Chemical Society
Book Volume: 6
Pages Range: 2280-2286
Journal Issue: 4
Supported ionic liquid phase (SILP) catalysts are comprised of a thin ionic liquid film containing a homogeneous transition metal complex that is supported on a highly porous substrate. The application of functionalized activated carbon as a support material for SILP catalysts in a continuous gas-phase propene hydroformylation reaction reveals that the surface properties of the carbon support have a significant influence on the catalytic performance. The catalytic activity of the pristine activated carbon-based SILP catalysts was found to be negligibly small (TOF4h = 3.5 h(-1)) in contrast to that of common oxidic supports such as silica (TOF4h = 15 h(-1)) or alumina. By amine functionalization of the carbon support surface, a dramatic increase in catalytic activity could be observed outperforming the tested oxidic supports by an order of magnitude. A distinct relationship between increased nitrogen content and the point of zero charge of the support and the catalytic activity could be observed. The largest activity increase (TOF4h = 105 h(-1)) was found for functionalized activated carbon SILP catalysts featuring a high point of zero charge and a high nitrogen content. Despite the fact that aldol formation is catalyzed by a base, the respective alcohol was the only detectable byproduct in the reactions.
APA:
Weiß, A., Munoz, M., Haas, A., Rietzler, F., Steinrück, H.-P., Haumann, M.,... Etzold, B. (2016). Boosting the Activity in Supported Ionic Liquid-Phase-Catalyzed Hydroformylation via Surface Functionalization of the Carbon Support. ACS Catalysis, 6(4), 2280-2286. https://dx.doi.org/10.1021/acscatal.5b02747
MLA:
Weiß, Alexander, et al. "Boosting the Activity in Supported Ionic Liquid-Phase-Catalyzed Hydroformylation via Surface Functionalization of the Carbon Support." ACS Catalysis 6.4 (2016): 2280-2286.
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